tor-browser

pdf.js (731653B)

---

/**
* @licstart The following is the entire license notice for the
* Javascript code in this page
*
* Copyright 2019 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @licend The above is the entire license notice for the
* Javascript code in this page
*/

(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
	module.exports = factory();
else if(typeof define === 'function' && define.amd)
	define("pdfjs-dist/build/pdf", [], factory);
else if(typeof exports === 'object')
	exports["pdfjs-dist/build/pdf"] = factory();
else
	root["pdfjs-dist/build/pdf"] = root.pdfjsLib = factory();
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
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/******/ 	function __w_pdfjs_require__(moduleId) {
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/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__w_pdfjs_require__.m = modules;
/******/
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/******/ 	__w_pdfjs_require__.c = installedModules;
/******/
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/******/ 	__w_pdfjs_require__.d = function(exports, name, getter) {
/******/ 		if(!__w_pdfjs_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
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/******/ 	__w_pdfjs_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
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/******/ 	// mode & 8|1: behave like require
/******/ 	__w_pdfjs_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __w_pdfjs_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__w_pdfjs_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __w_pdfjs_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
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/******/ 			function getDefault() { return module['default']; } :
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/* 0 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var pdfjsVersion = '2.2.228';
var pdfjsBuild = 'd7afb74a';

var pdfjsSharedUtil = __w_pdfjs_require__(1);

var pdfjsDisplayAPI = __w_pdfjs_require__(147);

var pdfjsDisplayTextLayer = __w_pdfjs_require__(162);

var pdfjsDisplayAnnotationLayer = __w_pdfjs_require__(163);

var pdfjsDisplayDisplayUtils = __w_pdfjs_require__(151);

var pdfjsDisplaySVG = __w_pdfjs_require__(164);

var pdfjsDisplayWorkerOptions = __w_pdfjs_require__(156);

var pdfjsDisplayAPICompatibility = __w_pdfjs_require__(153);

{
 var isNodeJS = __w_pdfjs_require__(4);

 if (isNodeJS()) {
   var PDFNodeStream = __w_pdfjs_require__(165).PDFNodeStream;

   pdfjsDisplayAPI.setPDFNetworkStreamFactory(function (params) {
     return new PDFNodeStream(params);
   });
 } else {
   var PDFNetworkStream = __w_pdfjs_require__(168).PDFNetworkStream;

   var PDFFetchStream;

   if (pdfjsDisplayDisplayUtils.isFetchSupported()) {
     PDFFetchStream = __w_pdfjs_require__(169).PDFFetchStream;
   }

   pdfjsDisplayAPI.setPDFNetworkStreamFactory(function (params) {
     if (PDFFetchStream && pdfjsDisplayDisplayUtils.isValidFetchUrl(params.url)) {
       return new PDFFetchStream(params);
     }

     return new PDFNetworkStream(params);
   });
 }
}
exports.build = pdfjsDisplayAPI.build;
exports.version = pdfjsDisplayAPI.version;
exports.getDocument = pdfjsDisplayAPI.getDocument;
exports.LoopbackPort = pdfjsDisplayAPI.LoopbackPort;
exports.PDFDataRangeTransport = pdfjsDisplayAPI.PDFDataRangeTransport;
exports.PDFWorker = pdfjsDisplayAPI.PDFWorker;
exports.renderTextLayer = pdfjsDisplayTextLayer.renderTextLayer;
exports.AnnotationLayer = pdfjsDisplayAnnotationLayer.AnnotationLayer;
exports.createPromiseCapability = pdfjsSharedUtil.createPromiseCapability;
exports.PasswordResponses = pdfjsSharedUtil.PasswordResponses;
exports.InvalidPDFException = pdfjsSharedUtil.InvalidPDFException;
exports.MissingPDFException = pdfjsSharedUtil.MissingPDFException;
exports.SVGGraphics = pdfjsDisplaySVG.SVGGraphics;
exports.NativeImageDecoding = pdfjsSharedUtil.NativeImageDecoding;
exports.CMapCompressionType = pdfjsSharedUtil.CMapCompressionType;
exports.PermissionFlag = pdfjsSharedUtil.PermissionFlag;
exports.UnexpectedResponseException = pdfjsSharedUtil.UnexpectedResponseException;
exports.OPS = pdfjsSharedUtil.OPS;
exports.VerbosityLevel = pdfjsSharedUtil.VerbosityLevel;
exports.UNSUPPORTED_FEATURES = pdfjsSharedUtil.UNSUPPORTED_FEATURES;
exports.createValidAbsoluteUrl = pdfjsSharedUtil.createValidAbsoluteUrl;
exports.createObjectURL = pdfjsSharedUtil.createObjectURL;
exports.removeNullCharacters = pdfjsSharedUtil.removeNullCharacters;
exports.shadow = pdfjsSharedUtil.shadow;
exports.Util = pdfjsSharedUtil.Util;
exports.ReadableStream = pdfjsSharedUtil.ReadableStream;
exports.URL = pdfjsSharedUtil.URL;
exports.RenderingCancelledException = pdfjsDisplayDisplayUtils.RenderingCancelledException;
exports.getFilenameFromUrl = pdfjsDisplayDisplayUtils.getFilenameFromUrl;
exports.LinkTarget = pdfjsDisplayDisplayUtils.LinkTarget;
exports.addLinkAttributes = pdfjsDisplayDisplayUtils.addLinkAttributes;
exports.loadScript = pdfjsDisplayDisplayUtils.loadScript;
exports.PDFDateString = pdfjsDisplayDisplayUtils.PDFDateString;
exports.GlobalWorkerOptions = pdfjsDisplayWorkerOptions.GlobalWorkerOptions;
exports.apiCompatibilityParams = pdfjsDisplayAPICompatibility.apiCompatibilityParams;

/***/ }),
/* 1 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.arrayByteLength = arrayByteLength;
exports.arraysToBytes = arraysToBytes;
exports.assert = assert;
exports.bytesToString = bytesToString;
exports.createPromiseCapability = createPromiseCapability;
exports.getVerbosityLevel = getVerbosityLevel;
exports.info = info;
exports.isArrayBuffer = isArrayBuffer;
exports.isArrayEqual = isArrayEqual;
exports.isBool = isBool;
exports.isEmptyObj = isEmptyObj;
exports.isNum = isNum;
exports.isString = isString;
exports.isSpace = isSpace;
exports.isSameOrigin = isSameOrigin;
exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
exports.isLittleEndian = isLittleEndian;
exports.isEvalSupported = isEvalSupported;
exports.log2 = log2;
exports.readInt8 = readInt8;
exports.readUint16 = readUint16;
exports.readUint32 = readUint32;
exports.removeNullCharacters = removeNullCharacters;
exports.setVerbosityLevel = setVerbosityLevel;
exports.shadow = shadow;
exports.string32 = string32;
exports.stringToBytes = stringToBytes;
exports.stringToPDFString = stringToPDFString;
exports.stringToUTF8String = stringToUTF8String;
exports.utf8StringToString = utf8StringToString;
exports.warn = warn;
exports.unreachable = unreachable;
Object.defineProperty(exports, "ReadableStream", {
 enumerable: true,
 get: function get() {
   return _streams_polyfill.ReadableStream;
 }
});
Object.defineProperty(exports, "URL", {
 enumerable: true,
 get: function get() {
   return _url_polyfill.URL;
 }
});
exports.createObjectURL = exports.FormatError = exports.Util = exports.UnknownErrorException = exports.UnexpectedResponseException = exports.TextRenderingMode = exports.StreamType = exports.PermissionFlag = exports.PasswordResponses = exports.PasswordException = exports.NativeImageDecoding = exports.MissingPDFException = exports.InvalidPDFException = exports.AbortException = exports.CMapCompressionType = exports.ImageKind = exports.FontType = exports.AnnotationType = exports.AnnotationFlag = exports.AnnotationFieldFlag = exports.AnnotationBorderStyleType = exports.UNSUPPORTED_FEATURES = exports.VerbosityLevel = exports.OPS = exports.IDENTITY_MATRIX = exports.FONT_IDENTITY_MATRIX = void 0;

__w_pdfjs_require__(2);

var _streams_polyfill = __w_pdfjs_require__(143);

var _url_polyfill = __w_pdfjs_require__(145);

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
var NativeImageDecoding = {
 NONE: 'none',
 DECODE: 'decode',
 DISPLAY: 'display'
};
exports.NativeImageDecoding = NativeImageDecoding;
var PermissionFlag = {
 PRINT: 0x04,
 MODIFY_CONTENTS: 0x08,
 COPY: 0x10,
 MODIFY_ANNOTATIONS: 0x20,
 FILL_INTERACTIVE_FORMS: 0x100,
 COPY_FOR_ACCESSIBILITY: 0x200,
 ASSEMBLE: 0x400,
 PRINT_HIGH_QUALITY: 0x800
};
exports.PermissionFlag = PermissionFlag;
var TextRenderingMode = {
 FILL: 0,
 STROKE: 1,
 FILL_STROKE: 2,
 INVISIBLE: 3,
 FILL_ADD_TO_PATH: 4,
 STROKE_ADD_TO_PATH: 5,
 FILL_STROKE_ADD_TO_PATH: 6,
 ADD_TO_PATH: 7,
 FILL_STROKE_MASK: 3,
 ADD_TO_PATH_FLAG: 4
};
exports.TextRenderingMode = TextRenderingMode;
var ImageKind = {
 GRAYSCALE_1BPP: 1,
 RGB_24BPP: 2,
 RGBA_32BPP: 3
};
exports.ImageKind = ImageKind;
var AnnotationType = {
 TEXT: 1,
 LINK: 2,
 FREETEXT: 3,
 LINE: 4,
 SQUARE: 5,
 CIRCLE: 6,
 POLYGON: 7,
 POLYLINE: 8,
 HIGHLIGHT: 9,
 UNDERLINE: 10,
 SQUIGGLY: 11,
 STRIKEOUT: 12,
 STAMP: 13,
 CARET: 14,
 INK: 15,
 POPUP: 16,
 FILEATTACHMENT: 17,
 SOUND: 18,
 MOVIE: 19,
 WIDGET: 20,
 SCREEN: 21,
 PRINTERMARK: 22,
 TRAPNET: 23,
 WATERMARK: 24,
 THREED: 25,
 REDACT: 26
};
exports.AnnotationType = AnnotationType;
var AnnotationFlag = {
 INVISIBLE: 0x01,
 HIDDEN: 0x02,
 PRINT: 0x04,
 NOZOOM: 0x08,
 NOROTATE: 0x10,
 NOVIEW: 0x20,
 READONLY: 0x40,
 LOCKED: 0x80,
 TOGGLENOVIEW: 0x100,
 LOCKEDCONTENTS: 0x200
};
exports.AnnotationFlag = AnnotationFlag;
var AnnotationFieldFlag = {
 READONLY: 0x0000001,
 REQUIRED: 0x0000002,
 NOEXPORT: 0x0000004,
 MULTILINE: 0x0001000,
 PASSWORD: 0x0002000,
 NOTOGGLETOOFF: 0x0004000,
 RADIO: 0x0008000,
 PUSHBUTTON: 0x0010000,
 COMBO: 0x0020000,
 EDIT: 0x0040000,
 SORT: 0x0080000,
 FILESELECT: 0x0100000,
 MULTISELECT: 0x0200000,
 DONOTSPELLCHECK: 0x0400000,
 DONOTSCROLL: 0x0800000,
 COMB: 0x1000000,
 RICHTEXT: 0x2000000,
 RADIOSINUNISON: 0x2000000,
 COMMITONSELCHANGE: 0x4000000
};
exports.AnnotationFieldFlag = AnnotationFieldFlag;
var AnnotationBorderStyleType = {
 SOLID: 1,
 DASHED: 2,
 BEVELED: 3,
 INSET: 4,
 UNDERLINE: 5
};
exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
var StreamType = {
 UNKNOWN: 0,
 FLATE: 1,
 LZW: 2,
 DCT: 3,
 JPX: 4,
 JBIG: 5,
 A85: 6,
 AHX: 7,
 CCF: 8,
 RL: 9
};
exports.StreamType = StreamType;
var FontType = {
 UNKNOWN: 0,
 TYPE1: 1,
 TYPE1C: 2,
 CIDFONTTYPE0: 3,
 CIDFONTTYPE0C: 4,
 TRUETYPE: 5,
 CIDFONTTYPE2: 6,
 TYPE3: 7,
 OPENTYPE: 8,
 TYPE0: 9,
 MMTYPE1: 10
};
exports.FontType = FontType;
var VerbosityLevel = {
 ERRORS: 0,
 WARNINGS: 1,
 INFOS: 5
};
exports.VerbosityLevel = VerbosityLevel;
var CMapCompressionType = {
 NONE: 0,
 BINARY: 1,
 STREAM: 2
};
exports.CMapCompressionType = CMapCompressionType;
var OPS = {
 dependency: 1,
 setLineWidth: 2,
 setLineCap: 3,
 setLineJoin: 4,
 setMiterLimit: 5,
 setDash: 6,
 setRenderingIntent: 7,
 setFlatness: 8,
 setGState: 9,
 save: 10,
 restore: 11,
 transform: 12,
 moveTo: 13,
 lineTo: 14,
 curveTo: 15,
 curveTo2: 16,
 curveTo3: 17,
 closePath: 18,
 rectangle: 19,
 stroke: 20,
 closeStroke: 21,
 fill: 22,
 eoFill: 23,
 fillStroke: 24,
 eoFillStroke: 25,
 closeFillStroke: 26,
 closeEOFillStroke: 27,
 endPath: 28,
 clip: 29,
 eoClip: 30,
 beginText: 31,
 endText: 32,
 setCharSpacing: 33,
 setWordSpacing: 34,
 setHScale: 35,
 setLeading: 36,
 setFont: 37,
 setTextRenderingMode: 38,
 setTextRise: 39,
 moveText: 40,
 setLeadingMoveText: 41,
 setTextMatrix: 42,
 nextLine: 43,
 showText: 44,
 showSpacedText: 45,
 nextLineShowText: 46,
 nextLineSetSpacingShowText: 47,
 setCharWidth: 48,
 setCharWidthAndBounds: 49,
 setStrokeColorSpace: 50,
 setFillColorSpace: 51,
 setStrokeColor: 52,
 setStrokeColorN: 53,
 setFillColor: 54,
 setFillColorN: 55,
 setStrokeGray: 56,
 setFillGray: 57,
 setStrokeRGBColor: 58,
 setFillRGBColor: 59,
 setStrokeCMYKColor: 60,
 setFillCMYKColor: 61,
 shadingFill: 62,
 beginInlineImage: 63,
 beginImageData: 64,
 endInlineImage: 65,
 paintXObject: 66,
 markPoint: 67,
 markPointProps: 68,
 beginMarkedContent: 69,
 beginMarkedContentProps: 70,
 endMarkedContent: 71,
 beginCompat: 72,
 endCompat: 73,
 paintFormXObjectBegin: 74,
 paintFormXObjectEnd: 75,
 beginGroup: 76,
 endGroup: 77,
 beginAnnotations: 78,
 endAnnotations: 79,
 beginAnnotation: 80,
 endAnnotation: 81,
 paintJpegXObject: 82,
 paintImageMaskXObject: 83,
 paintImageMaskXObjectGroup: 84,
 paintImageXObject: 85,
 paintInlineImageXObject: 86,
 paintInlineImageXObjectGroup: 87,
 paintImageXObjectRepeat: 88,
 paintImageMaskXObjectRepeat: 89,
 paintSolidColorImageMask: 90,
 constructPath: 91
};
exports.OPS = OPS;
var UNSUPPORTED_FEATURES = {
 unknown: 'unknown',
 forms: 'forms',
 javaScript: 'javaScript',
 smask: 'smask',
 shadingPattern: 'shadingPattern',
 font: 'font'
};
exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
var PasswordResponses = {
 NEED_PASSWORD: 1,
 INCORRECT_PASSWORD: 2
};
exports.PasswordResponses = PasswordResponses;
var verbosity = VerbosityLevel.WARNINGS;

function setVerbosityLevel(level) {
 if (Number.isInteger(level)) {
   verbosity = level;
 }
}

function getVerbosityLevel() {
 return verbosity;
}

function info(msg) {
 if (verbosity >= VerbosityLevel.INFOS) {
   console.log('Info: ' + msg);
 }
}

function warn(msg) {
 if (verbosity >= VerbosityLevel.WARNINGS) {
   console.log('Warning: ' + msg);
 }
}

function unreachable(msg) {
 throw new Error(msg);
}

function assert(cond, msg) {
 if (!cond) {
   unreachable(msg);
 }
}

function isSameOrigin(baseUrl, otherUrl) {
 try {
   var base = new _url_polyfill.URL(baseUrl);

   if (!base.origin || base.origin === 'null') {
     return false;
   }
 } catch (e) {
   return false;
 }

 var other = new _url_polyfill.URL(otherUrl, base);
 return base.origin === other.origin;
}

function _isValidProtocol(url) {
 if (!url) {
   return false;
 }

 switch (url.protocol) {
   case 'http:':
   case 'https:':
   case 'ftp:':
   case 'mailto:':
   case 'tel:':
     return true;

   default:
     return false;
 }
}

function createValidAbsoluteUrl(url, baseUrl) {
 if (!url) {
   return null;
 }

 try {
   var absoluteUrl = baseUrl ? new _url_polyfill.URL(url, baseUrl) : new _url_polyfill.URL(url);

   if (_isValidProtocol(absoluteUrl)) {
     return absoluteUrl;
   }
 } catch (ex) {}

 return null;
}

function shadow(obj, prop, value) {
 Object.defineProperty(obj, prop, {
   value: value,
   enumerable: true,
   configurable: true,
   writable: false
 });
 return value;
}

var PasswordException = function PasswordExceptionClosure() {
 function PasswordException(msg, code) {
   this.name = 'PasswordException';
   this.message = msg;
   this.code = code;
 }

 PasswordException.prototype = new Error();
 PasswordException.constructor = PasswordException;
 return PasswordException;
}();

exports.PasswordException = PasswordException;

var UnknownErrorException = function UnknownErrorExceptionClosure() {
 function UnknownErrorException(msg, details) {
   this.name = 'UnknownErrorException';
   this.message = msg;
   this.details = details;
 }

 UnknownErrorException.prototype = new Error();
 UnknownErrorException.constructor = UnknownErrorException;
 return UnknownErrorException;
}();

exports.UnknownErrorException = UnknownErrorException;

var InvalidPDFException = function InvalidPDFExceptionClosure() {
 function InvalidPDFException(msg) {
   this.name = 'InvalidPDFException';
   this.message = msg;
 }

 InvalidPDFException.prototype = new Error();
 InvalidPDFException.constructor = InvalidPDFException;
 return InvalidPDFException;
}();

exports.InvalidPDFException = InvalidPDFException;

var MissingPDFException = function MissingPDFExceptionClosure() {
 function MissingPDFException(msg) {
   this.name = 'MissingPDFException';
   this.message = msg;
 }

 MissingPDFException.prototype = new Error();
 MissingPDFException.constructor = MissingPDFException;
 return MissingPDFException;
}();

exports.MissingPDFException = MissingPDFException;

var UnexpectedResponseException = function UnexpectedResponseExceptionClosure() {
 function UnexpectedResponseException(msg, status) {
   this.name = 'UnexpectedResponseException';
   this.message = msg;
   this.status = status;
 }

 UnexpectedResponseException.prototype = new Error();
 UnexpectedResponseException.constructor = UnexpectedResponseException;
 return UnexpectedResponseException;
}();

exports.UnexpectedResponseException = UnexpectedResponseException;

var FormatError = function FormatErrorClosure() {
 function FormatError(msg) {
   this.message = msg;
 }

 FormatError.prototype = new Error();
 FormatError.prototype.name = 'FormatError';
 FormatError.constructor = FormatError;
 return FormatError;
}();

exports.FormatError = FormatError;

var AbortException = function AbortExceptionClosure() {
 function AbortException(msg) {
   this.name = 'AbortException';
   this.message = msg;
 }

 AbortException.prototype = new Error();
 AbortException.constructor = AbortException;
 return AbortException;
}();

exports.AbortException = AbortException;
var NullCharactersRegExp = /\x00/g;

function removeNullCharacters(str) {
 if (typeof str !== 'string') {
   warn('The argument for removeNullCharacters must be a string.');
   return str;
 }

 return str.replace(NullCharactersRegExp, '');
}

function bytesToString(bytes) {
 assert(bytes !== null && _typeof(bytes) === 'object' && bytes.length !== undefined, 'Invalid argument for bytesToString');
 var length = bytes.length;
 var MAX_ARGUMENT_COUNT = 8192;

 if (length < MAX_ARGUMENT_COUNT) {
   return String.fromCharCode.apply(null, bytes);
 }

 var strBuf = [];

 for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
   var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
   var chunk = bytes.subarray(i, chunkEnd);
   strBuf.push(String.fromCharCode.apply(null, chunk));
 }

 return strBuf.join('');
}

function stringToBytes(str) {
 assert(typeof str === 'string', 'Invalid argument for stringToBytes');
 var length = str.length;
 var bytes = new Uint8Array(length);

 for (var i = 0; i < length; ++i) {
   bytes[i] = str.charCodeAt(i) & 0xFF;
 }

 return bytes;
}

function arrayByteLength(arr) {
 if (arr.length !== undefined) {
   return arr.length;
 }

 assert(arr.byteLength !== undefined);
 return arr.byteLength;
}

function arraysToBytes(arr) {
 if (arr.length === 1 && arr[0] instanceof Uint8Array) {
   return arr[0];
 }

 var resultLength = 0;
 var i,
     ii = arr.length;
 var item, itemLength;

 for (i = 0; i < ii; i++) {
   item = arr[i];
   itemLength = arrayByteLength(item);
   resultLength += itemLength;
 }

 var pos = 0;
 var data = new Uint8Array(resultLength);

 for (i = 0; i < ii; i++) {
   item = arr[i];

   if (!(item instanceof Uint8Array)) {
     if (typeof item === 'string') {
       item = stringToBytes(item);
     } else {
       item = new Uint8Array(item);
     }
   }

   itemLength = item.byteLength;
   data.set(item, pos);
   pos += itemLength;
 }

 return data;
}

function string32(value) {
 return String.fromCharCode(value >> 24 & 0xff, value >> 16 & 0xff, value >> 8 & 0xff, value & 0xff);
}

function log2(x) {
 if (x <= 0) {
   return 0;
 }

 return Math.ceil(Math.log2(x));
}

function readInt8(data, start) {
 return data[start] << 24 >> 24;
}

function readUint16(data, offset) {
 return data[offset] << 8 | data[offset + 1];
}

function readUint32(data, offset) {
 return (data[offset] << 24 | data[offset + 1] << 16 | data[offset + 2] << 8 | data[offset + 3]) >>> 0;
}

function isLittleEndian() {
 var buffer8 = new Uint8Array(4);
 buffer8[0] = 1;
 var view32 = new Uint32Array(buffer8.buffer, 0, 1);
 return view32[0] === 1;
}

function isEvalSupported() {
 try {
   new Function('');
   return true;
 } catch (e) {
   return false;
 }
}

var Util = function UtilClosure() {
 function Util() {}

 var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];

 Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {
   rgbBuf[1] = r;
   rgbBuf[3] = g;
   rgbBuf[5] = b;
   return rgbBuf.join('');
 };

 Util.transform = function Util_transform(m1, m2) {
   return [m1[0] * m2[0] + m1[2] * m2[1], m1[1] * m2[0] + m1[3] * m2[1], m1[0] * m2[2] + m1[2] * m2[3], m1[1] * m2[2] + m1[3] * m2[3], m1[0] * m2[4] + m1[2] * m2[5] + m1[4], m1[1] * m2[4] + m1[3] * m2[5] + m1[5]];
 };

 Util.applyTransform = function Util_applyTransform(p, m) {
   var xt = p[0] * m[0] + p[1] * m[2] + m[4];
   var yt = p[0] * m[1] + p[1] * m[3] + m[5];
   return [xt, yt];
 };

 Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {
   var d = m[0] * m[3] - m[1] * m[2];
   var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
   var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
   return [xt, yt];
 };

 Util.getAxialAlignedBoundingBox = function Util_getAxialAlignedBoundingBox(r, m) {
   var p1 = Util.applyTransform(r, m);
   var p2 = Util.applyTransform(r.slice(2, 4), m);
   var p3 = Util.applyTransform([r[0], r[3]], m);
   var p4 = Util.applyTransform([r[2], r[1]], m);
   return [Math.min(p1[0], p2[0], p3[0], p4[0]), Math.min(p1[1], p2[1], p3[1], p4[1]), Math.max(p1[0], p2[0], p3[0], p4[0]), Math.max(p1[1], p2[1], p3[1], p4[1])];
 };

 Util.inverseTransform = function Util_inverseTransform(m) {
   var d = m[0] * m[3] - m[1] * m[2];
   return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d, (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
 };

 Util.apply3dTransform = function Util_apply3dTransform(m, v) {
   return [m[0] * v[0] + m[1] * v[1] + m[2] * v[2], m[3] * v[0] + m[4] * v[1] + m[5] * v[2], m[6] * v[0] + m[7] * v[1] + m[8] * v[2]];
 };

 Util.singularValueDecompose2dScale = function Util_singularValueDecompose2dScale(m) {
   var transpose = [m[0], m[2], m[1], m[3]];
   var a = m[0] * transpose[0] + m[1] * transpose[2];
   var b = m[0] * transpose[1] + m[1] * transpose[3];
   var c = m[2] * transpose[0] + m[3] * transpose[2];
   var d = m[2] * transpose[1] + m[3] * transpose[3];
   var first = (a + d) / 2;
   var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;
   var sx = first + second || 1;
   var sy = first - second || 1;
   return [Math.sqrt(sx), Math.sqrt(sy)];
 };

 Util.normalizeRect = function Util_normalizeRect(rect) {
   var r = rect.slice(0);

   if (rect[0] > rect[2]) {
     r[0] = rect[2];
     r[2] = rect[0];
   }

   if (rect[1] > rect[3]) {
     r[1] = rect[3];
     r[3] = rect[1];
   }

   return r;
 };

 Util.intersect = function Util_intersect(rect1, rect2) {
   function compare(a, b) {
     return a - b;
   }

   var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),
       orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),
       result = [];
   rect1 = Util.normalizeRect(rect1);
   rect2 = Util.normalizeRect(rect2);

   if (orderedX[0] === rect1[0] && orderedX[1] === rect2[0] || orderedX[0] === rect2[0] && orderedX[1] === rect1[0]) {
     result[0] = orderedX[1];
     result[2] = orderedX[2];
   } else {
     return false;
   }

   if (orderedY[0] === rect1[1] && orderedY[1] === rect2[1] || orderedY[0] === rect2[1] && orderedY[1] === rect1[1]) {
     result[1] = orderedY[1];
     result[3] = orderedY[2];
   } else {
     return false;
   }

   return result;
 };

 return Util;
}();

exports.Util = Util;
var PDFStringTranslateTable = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C, 0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160, 0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC];

function stringToPDFString(str) {
 var i,
     n = str.length,
     strBuf = [];

 if (str[0] === '\xFE' && str[1] === '\xFF') {
   for (i = 2; i < n; i += 2) {
     strBuf.push(String.fromCharCode(str.charCodeAt(i) << 8 | str.charCodeAt(i + 1)));
   }
 } else {
   for (i = 0; i < n; ++i) {
     var code = PDFStringTranslateTable[str.charCodeAt(i)];
     strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
   }
 }

 return strBuf.join('');
}

function stringToUTF8String(str) {
 return decodeURIComponent(escape(str));
}

function utf8StringToString(str) {
 return unescape(encodeURIComponent(str));
}

function isEmptyObj(obj) {
 for (var key in obj) {
   return false;
 }

 return true;
}

function isBool(v) {
 return typeof v === 'boolean';
}

function isNum(v) {
 return typeof v === 'number';
}

function isString(v) {
 return typeof v === 'string';
}

function isArrayBuffer(v) {
 return _typeof(v) === 'object' && v !== null && v.byteLength !== undefined;
}

function isArrayEqual(arr1, arr2) {
 if (arr1.length !== arr2.length) {
   return false;
 }

 return arr1.every(function (element, index) {
   return element === arr2[index];
 });
}

function isSpace(ch) {
 return ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A;
}

function createPromiseCapability() {
 var capability = Object.create(null);
 var isSettled = false;
 Object.defineProperty(capability, 'settled', {
   get: function get() {
     return isSettled;
   }
 });
 capability.promise = new Promise(function (resolve, reject) {
   capability.resolve = function (data) {
     isSettled = true;
     resolve(data);
   };

   capability.reject = function (reason) {
     isSettled = true;
     reject(reason);
   };
 });
 return capability;
}

var createObjectURL = function createObjectURLClosure() {
 var digits = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
 return function createObjectURL(data, contentType) {
   var forceDataSchema = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

   if (!forceDataSchema && _url_polyfill.URL.createObjectURL) {
     var blob = new Blob([data], {
       type: contentType
     });
     return _url_polyfill.URL.createObjectURL(blob);
   }

   var buffer = 'data:' + contentType + ';base64,';

   for (var i = 0, ii = data.length; i < ii; i += 3) {
     var b1 = data[i] & 0xFF;
     var b2 = data[i + 1] & 0xFF;
     var b3 = data[i + 2] & 0xFF;
     var d1 = b1 >> 2,
         d2 = (b1 & 3) << 4 | b2 >> 4;
     var d3 = i + 1 < ii ? (b2 & 0xF) << 2 | b3 >> 6 : 64;
     var d4 = i + 2 < ii ? b3 & 0x3F : 64;
     buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
   }

   return buffer;
 };
}();

exports.createObjectURL = createObjectURL;

/***/ }),
/* 2 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var globalScope = __w_pdfjs_require__(3);

if (!globalScope._pdfjsCompatibilityChecked) {
 globalScope._pdfjsCompatibilityChecked = true;

 var isNodeJS = __w_pdfjs_require__(4);

 var hasDOM = (typeof window === "undefined" ? "undefined" : _typeof(window)) === 'object' && (typeof document === "undefined" ? "undefined" : _typeof(document)) === 'object';

 (function checkNodeBtoa() {
   if (globalScope.btoa || !isNodeJS()) {
     return;
   }

   globalScope.btoa = function (chars) {
     return Buffer.from(chars, 'binary').toString('base64');
   };
 })();

 (function checkNodeAtob() {
   if (globalScope.atob || !isNodeJS()) {
     return;
   }

   globalScope.atob = function (input) {
     return Buffer.from(input, 'base64').toString('binary');
   };
 })();

 (function checkChildNodeRemove() {
   if (!hasDOM) {
     return;
   }

   if (typeof Element.prototype.remove !== 'undefined') {
     return;
   }

   Element.prototype.remove = function () {
     if (this.parentNode) {
       this.parentNode.removeChild(this);
     }
   };
 })();

 (function checkDOMTokenListAddRemove() {
   if (!hasDOM || isNodeJS()) {
     return;
   }

   var div = document.createElement('div');
   div.classList.add('testOne', 'testTwo');

   if (div.classList.contains('testOne') === true && div.classList.contains('testTwo') === true) {
     return;
   }

   var OriginalDOMTokenListAdd = DOMTokenList.prototype.add;
   var OriginalDOMTokenListRemove = DOMTokenList.prototype.remove;

   DOMTokenList.prototype.add = function () {
     for (var _len = arguments.length, tokens = new Array(_len), _key = 0; _key < _len; _key++) {
       tokens[_key] = arguments[_key];
     }

     for (var _i = 0, _tokens = tokens; _i < _tokens.length; _i++) {
       var token = _tokens[_i];
       OriginalDOMTokenListAdd.call(this, token);
     }
   };

   DOMTokenList.prototype.remove = function () {
     for (var _len2 = arguments.length, tokens = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
       tokens[_key2] = arguments[_key2];
     }

     for (var _i2 = 0, _tokens2 = tokens; _i2 < _tokens2.length; _i2++) {
       var token = _tokens2[_i2];
       OriginalDOMTokenListRemove.call(this, token);
     }
   };
 })();

 (function checkDOMTokenListToggle() {
   if (!hasDOM || isNodeJS()) {
     return;
   }

   var div = document.createElement('div');

   if (div.classList.toggle('test', 0) === false) {
     return;
   }

   DOMTokenList.prototype.toggle = function (token) {
     var force = arguments.length > 1 ? !!arguments[1] : !this.contains(token);
     return this[force ? 'add' : 'remove'](token), force;
   };
 })();

 (function checkStringStartsWith() {
   if (String.prototype.startsWith) {
     return;
   }

   __w_pdfjs_require__(5);
 })();

 (function checkStringEndsWith() {
   if (String.prototype.endsWith) {
     return;
   }

   __w_pdfjs_require__(36);
 })();

 (function checkStringIncludes() {
   if (String.prototype.includes) {
     return;
   }

   __w_pdfjs_require__(38);
 })();

 (function checkArrayIncludes() {
   if (Array.prototype.includes) {
     return;
   }

   __w_pdfjs_require__(40);
 })();

 (function checkArrayFrom() {
   if (Array.from) {
     return;
   }

   __w_pdfjs_require__(47);
 })();

 (function checkObjectAssign() {
   if (Object.assign) {
     return;
   }

   __w_pdfjs_require__(70);
 })();

 (function checkMathLog2() {
   if (Math.log2) {
     return;
   }

   Math.log2 = __w_pdfjs_require__(75);
 })();

 (function checkNumberIsNaN() {
   if (Number.isNaN) {
     return;
   }

   Number.isNaN = __w_pdfjs_require__(77);
 })();

 (function checkNumberIsInteger() {
   if (Number.isInteger) {
     return;
   }

   Number.isInteger = __w_pdfjs_require__(79);
 })();

 (function checkPromise() {
   if (globalScope.Promise && globalScope.Promise.prototype && globalScope.Promise.prototype["finally"]) {
     return;
   }

   globalScope.Promise = __w_pdfjs_require__(82);
 })();

 (function checkWeakMap() {
   if (globalScope.WeakMap) {
     return;
   }

   globalScope.WeakMap = __w_pdfjs_require__(102);
 })();

 (function checkWeakSet() {
   if (globalScope.WeakSet) {
     return;
   }

   globalScope.WeakSet = __w_pdfjs_require__(119);
 })();

 (function checkStringCodePointAt() {
   if (String.codePointAt) {
     return;
   }

   String.codePointAt = __w_pdfjs_require__(123);
 })();

 (function checkStringFromCodePoint() {
   if (String.fromCodePoint) {
     return;
   }

   String.fromCodePoint = __w_pdfjs_require__(125);
 })();

 (function checkSymbol() {
   if (globalScope.Symbol) {
     return;
   }

   __w_pdfjs_require__(127);
 })();

 (function checkStringPadStart() {
   if (String.prototype.padStart) {
     return;
   }

   __w_pdfjs_require__(134);
 })();

 (function checkStringPadEnd() {
   if (String.prototype.padEnd) {
     return;
   }

   __w_pdfjs_require__(138);
 })();

 (function checkObjectValues() {
   if (Object.values) {
     return;
   }

   Object.values = __w_pdfjs_require__(140);
 })();
}

/***/ }),
/* 3 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = typeof window !== 'undefined' && window.Math === Math ? window : typeof global !== 'undefined' && global.Math === Math ? global : typeof self !== 'undefined' && self.Math === Math ? self : {};

/***/ }),
/* 4 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

module.exports = function isNodeJS() {
 return (typeof process === "undefined" ? "undefined" : _typeof(process)) === 'object' && process + '' === '[object process]' && !process.versions['nw'] && !process.versions['electron'];
};

/***/ }),
/* 5 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(6);

module.exports = __w_pdfjs_require__(9).String.startsWith;

/***/ }),
/* 6 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var toLength = __w_pdfjs_require__(28);

var context = __w_pdfjs_require__(30);

var STARTS_WITH = 'startsWith';
var $startsWith = ''[STARTS_WITH];
$export($export.P + $export.F * __w_pdfjs_require__(35)(STARTS_WITH), 'String', {
 startsWith: function startsWith(searchString) {
   var that = context(this, searchString, STARTS_WITH);
   var index = toLength(Math.min(arguments.length > 1 ? arguments[1] : undefined, that.length));
   var search = String(searchString);
   return $startsWith ? $startsWith.call(that, search, index) : that.slice(index, index + search.length) === search;
 }
});

/***/ }),
/* 7 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var core = __w_pdfjs_require__(9);

var hide = __w_pdfjs_require__(10);

var redefine = __w_pdfjs_require__(20);

var ctx = __w_pdfjs_require__(26);

var PROTOTYPE = 'prototype';

var $export = function $export(type, name, source) {
 var IS_FORCED = type & $export.F;
 var IS_GLOBAL = type & $export.G;
 var IS_STATIC = type & $export.S;
 var IS_PROTO = type & $export.P;
 var IS_BIND = type & $export.B;
 var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];
 var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
 var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
 var key, own, out, exp;
 if (IS_GLOBAL) source = name;

 for (key in source) {
   own = !IS_FORCED && target && target[key] !== undefined;
   out = (own ? target : source)[key];
   exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
   if (target) redefine(target, key, out, type & $export.U);
   if (exports[key] != out) hide(exports, key, exp);
   if (IS_PROTO && expProto[key] != out) expProto[key] = out;
 }
};

global.core = core;
$export.F = 1;
$export.G = 2;
$export.S = 4;
$export.P = 8;
$export.B = 16;
$export.W = 32;
$export.U = 64;
$export.R = 128;
module.exports = $export;

/***/ }),
/* 8 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = module.exports = typeof window != 'undefined' && window.Math == Math ? window : typeof self != 'undefined' && self.Math == Math ? self : Function('return this')();
if (typeof __g == 'number') __g = global;

/***/ }),
/* 9 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var core = module.exports = {
 version: '2.6.9'
};
if (typeof __e == 'number') __e = core;

/***/ }),
/* 10 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var dP = __w_pdfjs_require__(11);

var createDesc = __w_pdfjs_require__(19);

module.exports = __w_pdfjs_require__(15) ? function (object, key, value) {
 return dP.f(object, key, createDesc(1, value));
} : function (object, key, value) {
 object[key] = value;
 return object;
};

/***/ }),
/* 11 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

var IE8_DOM_DEFINE = __w_pdfjs_require__(14);

var toPrimitive = __w_pdfjs_require__(18);

var dP = Object.defineProperty;
exports.f = __w_pdfjs_require__(15) ? Object.defineProperty : function defineProperty(O, P, Attributes) {
 anObject(O);
 P = toPrimitive(P, true);
 anObject(Attributes);
 if (IE8_DOM_DEFINE) try {
   return dP(O, P, Attributes);
 } catch (e) {}
 if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
 if ('value' in Attributes) O[P] = Attributes.value;
 return O;
};

/***/ }),
/* 12 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

module.exports = function (it) {
 if (!isObject(it)) throw TypeError(it + ' is not an object!');
 return it;
};

/***/ }),
/* 13 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

module.exports = function (it) {
 return _typeof(it) === 'object' ? it !== null : typeof it === 'function';
};

/***/ }),
/* 14 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = !__w_pdfjs_require__(15) && !__w_pdfjs_require__(16)(function () {
 return Object.defineProperty(__w_pdfjs_require__(17)('div'), 'a', {
   get: function get() {
     return 7;
   }
 }).a != 7;
});

/***/ }),
/* 15 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = !__w_pdfjs_require__(16)(function () {
 return Object.defineProperty({}, 'a', {
   get: function get() {
     return 7;
   }
 }).a != 7;
});

/***/ }),
/* 16 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (exec) {
 try {
   return !!exec();
 } catch (e) {
   return true;
 }
};

/***/ }),
/* 17 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var document = __w_pdfjs_require__(8).document;

var is = isObject(document) && isObject(document.createElement);

module.exports = function (it) {
 return is ? document.createElement(it) : {};
};

/***/ }),
/* 18 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

module.exports = function (it, S) {
 if (!isObject(it)) return it;
 var fn, val;
 if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
 if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
 if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
 throw TypeError("Can't convert object to primitive value");
};

/***/ }),
/* 19 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (bitmap, value) {
 return {
   enumerable: !(bitmap & 1),
   configurable: !(bitmap & 2),
   writable: !(bitmap & 4),
   value: value
 };
};

/***/ }),
/* 20 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var hide = __w_pdfjs_require__(10);

var has = __w_pdfjs_require__(21);

var SRC = __w_pdfjs_require__(22)('src');

var $toString = __w_pdfjs_require__(23);

var TO_STRING = 'toString';
var TPL = ('' + $toString).split(TO_STRING);

__w_pdfjs_require__(9).inspectSource = function (it) {
 return $toString.call(it);
};

(module.exports = function (O, key, val, safe) {
 var isFunction = typeof val == 'function';
 if (isFunction) has(val, 'name') || hide(val, 'name', key);
 if (O[key] === val) return;
 if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));

 if (O === global) {
   O[key] = val;
 } else if (!safe) {
   delete O[key];
   hide(O, key, val);
 } else if (O[key]) {
   O[key] = val;
 } else {
   hide(O, key, val);
 }
})(Function.prototype, TO_STRING, function toString() {
 return typeof this == 'function' && this[SRC] || $toString.call(this);
});

/***/ }),
/* 21 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var hasOwnProperty = {}.hasOwnProperty;

module.exports = function (it, key) {
 return hasOwnProperty.call(it, key);
};

/***/ }),
/* 22 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var id = 0;
var px = Math.random();

module.exports = function (key) {
 return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
};

/***/ }),
/* 23 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = __w_pdfjs_require__(24)('native-function-to-string', Function.toString);

/***/ }),
/* 24 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var core = __w_pdfjs_require__(9);

var global = __w_pdfjs_require__(8);

var SHARED = '__core-js_shared__';
var store = global[SHARED] || (global[SHARED] = {});
(module.exports = function (key, value) {
 return store[key] || (store[key] = value !== undefined ? value : {});
})('versions', []).push({
 version: core.version,
 mode: __w_pdfjs_require__(25) ? 'pure' : 'global',
 copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
});

/***/ }),
/* 25 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = false;

/***/ }),
/* 26 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var aFunction = __w_pdfjs_require__(27);

module.exports = function (fn, that, length) {
 aFunction(fn);
 if (that === undefined) return fn;

 switch (length) {
   case 1:
     return function (a) {
       return fn.call(that, a);
     };

   case 2:
     return function (a, b) {
       return fn.call(that, a, b);
     };

   case 3:
     return function (a, b, c) {
       return fn.call(that, a, b, c);
     };
 }

 return function () {
   return fn.apply(that, arguments);
 };
};

/***/ }),
/* 27 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (it) {
 if (typeof it != 'function') throw TypeError(it + ' is not a function!');
 return it;
};

/***/ }),
/* 28 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toInteger = __w_pdfjs_require__(29);

var min = Math.min;

module.exports = function (it) {
 return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0;
};

/***/ }),
/* 29 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ceil = Math.ceil;
var floor = Math.floor;

module.exports = function (it) {
 return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
};

/***/ }),
/* 30 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isRegExp = __w_pdfjs_require__(31);

var defined = __w_pdfjs_require__(34);

module.exports = function (that, searchString, NAME) {
 if (isRegExp(searchString)) throw TypeError('String#' + NAME + " doesn't accept regex!");
 return String(defined(that));
};

/***/ }),
/* 31 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var cof = __w_pdfjs_require__(32);

var MATCH = __w_pdfjs_require__(33)('match');

module.exports = function (it) {
 var isRegExp;
 return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : cof(it) == 'RegExp');
};

/***/ }),
/* 32 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toString = {}.toString;

module.exports = function (it) {
 return toString.call(it).slice(8, -1);
};

/***/ }),
/* 33 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var store = __w_pdfjs_require__(24)('wks');

var uid = __w_pdfjs_require__(22);

var _Symbol = __w_pdfjs_require__(8).Symbol;

var USE_SYMBOL = typeof _Symbol == 'function';

var $exports = module.exports = function (name) {
 return store[name] || (store[name] = USE_SYMBOL && _Symbol[name] || (USE_SYMBOL ? _Symbol : uid)('Symbol.' + name));
};

$exports.store = store;

/***/ }),
/* 34 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (it) {
 if (it == undefined) throw TypeError("Can't call method on  " + it);
 return it;
};

/***/ }),
/* 35 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var MATCH = __w_pdfjs_require__(33)('match');

module.exports = function (KEY) {
 var re = /./;

 try {
   '/./'[KEY](re);
 } catch (e) {
   try {
     re[MATCH] = false;
     return !'/./'[KEY](re);
   } catch (f) {}
 }

 return true;
};

/***/ }),
/* 36 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(37);

module.exports = __w_pdfjs_require__(9).String.endsWith;

/***/ }),
/* 37 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var toLength = __w_pdfjs_require__(28);

var context = __w_pdfjs_require__(30);

var ENDS_WITH = 'endsWith';
var $endsWith = ''[ENDS_WITH];
$export($export.P + $export.F * __w_pdfjs_require__(35)(ENDS_WITH), 'String', {
 endsWith: function endsWith(searchString) {
   var that = context(this, searchString, ENDS_WITH);
   var endPosition = arguments.length > 1 ? arguments[1] : undefined;
   var len = toLength(that.length);
   var end = endPosition === undefined ? len : Math.min(toLength(endPosition), len);
   var search = String(searchString);
   return $endsWith ? $endsWith.call(that, search, end) : that.slice(end - search.length, end) === search;
 }
});

/***/ }),
/* 38 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(39);

module.exports = __w_pdfjs_require__(9).String.includes;

/***/ }),
/* 39 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var context = __w_pdfjs_require__(30);

var INCLUDES = 'includes';
$export($export.P + $export.F * __w_pdfjs_require__(35)(INCLUDES), 'String', {
 includes: function includes(searchString) {
   return !!~context(this, searchString, INCLUDES).indexOf(searchString, arguments.length > 1 ? arguments[1] : undefined);
 }
});

/***/ }),
/* 40 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(41);

module.exports = __w_pdfjs_require__(9).Array.includes;

/***/ }),
/* 41 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $includes = __w_pdfjs_require__(42)(true);

$export($export.P, 'Array', {
 includes: function includes(el) {
   return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
 }
});

__w_pdfjs_require__(46)('includes');

/***/ }),
/* 42 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toIObject = __w_pdfjs_require__(43);

var toLength = __w_pdfjs_require__(28);

var toAbsoluteIndex = __w_pdfjs_require__(45);

module.exports = function (IS_INCLUDES) {
 return function ($this, el, fromIndex) {
   var O = toIObject($this);
   var length = toLength(O.length);
   var index = toAbsoluteIndex(fromIndex, length);
   var value;
   if (IS_INCLUDES && el != el) while (length > index) {
     value = O[index++];
     if (value != value) return true;
   } else for (; length > index; index++) {
     if (IS_INCLUDES || index in O) {
       if (O[index] === el) return IS_INCLUDES || index || 0;
     }
   }
   return !IS_INCLUDES && -1;
 };
};

/***/ }),
/* 43 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var IObject = __w_pdfjs_require__(44);

var defined = __w_pdfjs_require__(34);

module.exports = function (it) {
 return IObject(defined(it));
};

/***/ }),
/* 44 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var cof = __w_pdfjs_require__(32);

module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
 return cof(it) == 'String' ? it.split('') : Object(it);
};

/***/ }),
/* 45 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toInteger = __w_pdfjs_require__(29);

var max = Math.max;
var min = Math.min;

module.exports = function (index, length) {
 index = toInteger(index);
 return index < 0 ? max(index + length, 0) : min(index, length);
};

/***/ }),
/* 46 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var UNSCOPABLES = __w_pdfjs_require__(33)('unscopables');

var ArrayProto = Array.prototype;
if (ArrayProto[UNSCOPABLES] == undefined) __w_pdfjs_require__(10)(ArrayProto, UNSCOPABLES, {});

module.exports = function (key) {
 ArrayProto[UNSCOPABLES][key] = true;
};

/***/ }),
/* 47 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(48);

__w_pdfjs_require__(63);

module.exports = __w_pdfjs_require__(9).Array.from;

/***/ }),
/* 48 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $at = __w_pdfjs_require__(49)(true);

__w_pdfjs_require__(50)(String, 'String', function (iterated) {
 this._t = String(iterated);
 this._i = 0;
}, function () {
 var O = this._t;
 var index = this._i;
 var point;
 if (index >= O.length) return {
   value: undefined,
   done: true
 };
 point = $at(O, index);
 this._i += point.length;
 return {
   value: point,
   done: false
 };
});

/***/ }),
/* 49 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toInteger = __w_pdfjs_require__(29);

var defined = __w_pdfjs_require__(34);

module.exports = function (TO_STRING) {
 return function (that, pos) {
   var s = String(defined(that));
   var i = toInteger(pos);
   var l = s.length;
   var a, b;
   if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
   a = s.charCodeAt(i);
   return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff ? TO_STRING ? s.charAt(i) : a : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
 };
};

/***/ }),
/* 50 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var LIBRARY = __w_pdfjs_require__(25);

var $export = __w_pdfjs_require__(7);

var redefine = __w_pdfjs_require__(20);

var hide = __w_pdfjs_require__(10);

var Iterators = __w_pdfjs_require__(51);

var $iterCreate = __w_pdfjs_require__(52);

var setToStringTag = __w_pdfjs_require__(60);

var getPrototypeOf = __w_pdfjs_require__(61);

var ITERATOR = __w_pdfjs_require__(33)('iterator');

var BUGGY = !([].keys && 'next' in [].keys());
var FF_ITERATOR = '@@iterator';
var KEYS = 'keys';
var VALUES = 'values';

var returnThis = function returnThis() {
 return this;
};

module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
 $iterCreate(Constructor, NAME, next);

 var getMethod = function getMethod(kind) {
   if (!BUGGY && kind in proto) return proto[kind];

   switch (kind) {
     case KEYS:
       return function keys() {
         return new Constructor(this, kind);
       };

     case VALUES:
       return function values() {
         return new Constructor(this, kind);
       };
   }

   return function entries() {
     return new Constructor(this, kind);
   };
 };

 var TAG = NAME + ' Iterator';
 var DEF_VALUES = DEFAULT == VALUES;
 var VALUES_BUG = false;
 var proto = Base.prototype;
 var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
 var $default = $native || getMethod(DEFAULT);
 var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
 var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
 var methods, key, IteratorPrototype;

 if ($anyNative) {
   IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));

   if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
     setToStringTag(IteratorPrototype, TAG, true);
     if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);
   }
 }

 if (DEF_VALUES && $native && $native.name !== VALUES) {
   VALUES_BUG = true;

   $default = function values() {
     return $native.call(this);
   };
 }

 if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
   hide(proto, ITERATOR, $default);
 }

 Iterators[NAME] = $default;
 Iterators[TAG] = returnThis;

 if (DEFAULT) {
   methods = {
     values: DEF_VALUES ? $default : getMethod(VALUES),
     keys: IS_SET ? $default : getMethod(KEYS),
     entries: $entries
   };
   if (FORCED) for (key in methods) {
     if (!(key in proto)) redefine(proto, key, methods[key]);
   } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
 }

 return methods;
};

/***/ }),
/* 51 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = {};

/***/ }),
/* 52 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var create = __w_pdfjs_require__(53);

var descriptor = __w_pdfjs_require__(19);

var setToStringTag = __w_pdfjs_require__(60);

var IteratorPrototype = {};

__w_pdfjs_require__(10)(IteratorPrototype, __w_pdfjs_require__(33)('iterator'), function () {
 return this;
});

module.exports = function (Constructor, NAME, next) {
 Constructor.prototype = create(IteratorPrototype, {
   next: descriptor(1, next)
 });
 setToStringTag(Constructor, NAME + ' Iterator');
};

/***/ }),
/* 53 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

var dPs = __w_pdfjs_require__(54);

var enumBugKeys = __w_pdfjs_require__(58);

var IE_PROTO = __w_pdfjs_require__(57)('IE_PROTO');

var Empty = function Empty() {};

var PROTOTYPE = 'prototype';

var _createDict = function createDict() {
 var iframe = __w_pdfjs_require__(17)('iframe');

 var i = enumBugKeys.length;
 var lt = '<';
 var gt = '>';
 var iframeDocument;
 iframe.style.display = 'none';

 __w_pdfjs_require__(59).appendChild(iframe);

 iframe.src = 'javascript:';
 iframeDocument = iframe.contentWindow.document;
 iframeDocument.open();
 iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
 iframeDocument.close();
 _createDict = iframeDocument.F;

 while (i--) {
   delete _createDict[PROTOTYPE][enumBugKeys[i]];
 }

 return _createDict();
};

module.exports = Object.create || function create(O, Properties) {
 var result;

 if (O !== null) {
   Empty[PROTOTYPE] = anObject(O);
   result = new Empty();
   Empty[PROTOTYPE] = null;
   result[IE_PROTO] = O;
 } else result = _createDict();

 return Properties === undefined ? result : dPs(result, Properties);
};

/***/ }),
/* 54 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var dP = __w_pdfjs_require__(11);

var anObject = __w_pdfjs_require__(12);

var getKeys = __w_pdfjs_require__(55);

module.exports = __w_pdfjs_require__(15) ? Object.defineProperties : function defineProperties(O, Properties) {
 anObject(O);
 var keys = getKeys(Properties);
 var length = keys.length;
 var i = 0;
 var P;

 while (length > i) {
   dP.f(O, P = keys[i++], Properties[P]);
 }

 return O;
};

/***/ }),
/* 55 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $keys = __w_pdfjs_require__(56);

var enumBugKeys = __w_pdfjs_require__(58);

module.exports = Object.keys || function keys(O) {
 return $keys(O, enumBugKeys);
};

/***/ }),
/* 56 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var has = __w_pdfjs_require__(21);

var toIObject = __w_pdfjs_require__(43);

var arrayIndexOf = __w_pdfjs_require__(42)(false);

var IE_PROTO = __w_pdfjs_require__(57)('IE_PROTO');

module.exports = function (object, names) {
 var O = toIObject(object);
 var i = 0;
 var result = [];
 var key;

 for (key in O) {
   if (key != IE_PROTO) has(O, key) && result.push(key);
 }

 while (names.length > i) {
   if (has(O, key = names[i++])) {
     ~arrayIndexOf(result, key) || result.push(key);
   }
 }

 return result;
};

/***/ }),
/* 57 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var shared = __w_pdfjs_require__(24)('keys');

var uid = __w_pdfjs_require__(22);

module.exports = function (key) {
 return shared[key] || (shared[key] = uid(key));
};

/***/ }),
/* 58 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'.split(',');

/***/ }),
/* 59 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var document = __w_pdfjs_require__(8).document;

module.exports = document && document.documentElement;

/***/ }),
/* 60 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var def = __w_pdfjs_require__(11).f;

var has = __w_pdfjs_require__(21);

var TAG = __w_pdfjs_require__(33)('toStringTag');

module.exports = function (it, tag, stat) {
 if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, {
   configurable: true,
   value: tag
 });
};

/***/ }),
/* 61 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var has = __w_pdfjs_require__(21);

var toObject = __w_pdfjs_require__(62);

var IE_PROTO = __w_pdfjs_require__(57)('IE_PROTO');

var ObjectProto = Object.prototype;

module.exports = Object.getPrototypeOf || function (O) {
 O = toObject(O);
 if (has(O, IE_PROTO)) return O[IE_PROTO];

 if (typeof O.constructor == 'function' && O instanceof O.constructor) {
   return O.constructor.prototype;
 }

 return O instanceof Object ? ObjectProto : null;
};

/***/ }),
/* 62 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var defined = __w_pdfjs_require__(34);

module.exports = function (it) {
 return Object(defined(it));
};

/***/ }),
/* 63 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ctx = __w_pdfjs_require__(26);

var $export = __w_pdfjs_require__(7);

var toObject = __w_pdfjs_require__(62);

var call = __w_pdfjs_require__(64);

var isArrayIter = __w_pdfjs_require__(65);

var toLength = __w_pdfjs_require__(28);

var createProperty = __w_pdfjs_require__(66);

var getIterFn = __w_pdfjs_require__(67);

$export($export.S + $export.F * !__w_pdfjs_require__(69)(function (iter) {
 Array.from(iter);
}), 'Array', {
 from: function from(arrayLike) {
   var O = toObject(arrayLike);
   var C = typeof this == 'function' ? this : Array;
   var aLen = arguments.length;
   var mapfn = aLen > 1 ? arguments[1] : undefined;
   var mapping = mapfn !== undefined;
   var index = 0;
   var iterFn = getIterFn(O);
   var length, result, step, iterator;
   if (mapping) mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);

   if (iterFn != undefined && !(C == Array && isArrayIter(iterFn))) {
     for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {
       createProperty(result, index, mapping ? call(iterator, mapfn, [step.value, index], true) : step.value);
     }
   } else {
     length = toLength(O.length);

     for (result = new C(length); length > index; index++) {
       createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);
     }
   }

   result.length = index;
   return result;
 }
});

/***/ }),
/* 64 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

module.exports = function (iterator, fn, value, entries) {
 try {
   return entries ? fn(anObject(value)[0], value[1]) : fn(value);
 } catch (e) {
   var ret = iterator['return'];
   if (ret !== undefined) anObject(ret.call(iterator));
   throw e;
 }
};

/***/ }),
/* 65 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var Iterators = __w_pdfjs_require__(51);

var ITERATOR = __w_pdfjs_require__(33)('iterator');

var ArrayProto = Array.prototype;

module.exports = function (it) {
 return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
};

/***/ }),
/* 66 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $defineProperty = __w_pdfjs_require__(11);

var createDesc = __w_pdfjs_require__(19);

module.exports = function (object, index, value) {
 if (index in object) $defineProperty.f(object, index, createDesc(0, value));else object[index] = value;
};

/***/ }),
/* 67 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var classof = __w_pdfjs_require__(68);

var ITERATOR = __w_pdfjs_require__(33)('iterator');

var Iterators = __w_pdfjs_require__(51);

module.exports = __w_pdfjs_require__(9).getIteratorMethod = function (it) {
 if (it != undefined) return it[ITERATOR] || it['@@iterator'] || Iterators[classof(it)];
};

/***/ }),
/* 68 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var cof = __w_pdfjs_require__(32);

var TAG = __w_pdfjs_require__(33)('toStringTag');

var ARG = cof(function () {
 return arguments;
}()) == 'Arguments';

var tryGet = function tryGet(it, key) {
 try {
   return it[key];
 } catch (e) {}
};

module.exports = function (it) {
 var O, T, B;
 return it === undefined ? 'Undefined' : it === null ? 'Null' : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T : ARG ? cof(O) : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
};

/***/ }),
/* 69 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ITERATOR = __w_pdfjs_require__(33)('iterator');

var SAFE_CLOSING = false;

try {
 var riter = [7][ITERATOR]();

 riter['return'] = function () {
   SAFE_CLOSING = true;
 };

 Array.from(riter, function () {
   throw 2;
 });
} catch (e) {}

module.exports = function (exec, skipClosing) {
 if (!skipClosing && !SAFE_CLOSING) return false;
 var safe = false;

 try {
   var arr = [7];
   var iter = arr[ITERATOR]();

   iter.next = function () {
     return {
       done: safe = true
     };
   };

   arr[ITERATOR] = function () {
     return iter;
   };

   exec(arr);
 } catch (e) {}

 return safe;
};

/***/ }),
/* 70 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(71);

module.exports = __w_pdfjs_require__(9).Object.assign;

/***/ }),
/* 71 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

$export($export.S + $export.F, 'Object', {
 assign: __w_pdfjs_require__(72)
});

/***/ }),
/* 72 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var DESCRIPTORS = __w_pdfjs_require__(15);

var getKeys = __w_pdfjs_require__(55);

var gOPS = __w_pdfjs_require__(73);

var pIE = __w_pdfjs_require__(74);

var toObject = __w_pdfjs_require__(62);

var IObject = __w_pdfjs_require__(44);

var $assign = Object.assign;
module.exports = !$assign || __w_pdfjs_require__(16)(function () {
 var A = {};
 var B = {};
 var S = Symbol();
 var K = 'abcdefghijklmnopqrst';
 A[S] = 7;
 K.split('').forEach(function (k) {
   B[k] = k;
 });
 return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
}) ? function assign(target, source) {
 var T = toObject(target);
 var aLen = arguments.length;
 var index = 1;
 var getSymbols = gOPS.f;
 var isEnum = pIE.f;

 while (aLen > index) {
   var S = IObject(arguments[index++]);
   var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
   var length = keys.length;
   var j = 0;
   var key;

   while (length > j) {
     key = keys[j++];
     if (!DESCRIPTORS || isEnum.call(S, key)) T[key] = S[key];
   }
 }

 return T;
} : $assign;

/***/ }),
/* 73 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


exports.f = Object.getOwnPropertySymbols;

/***/ }),
/* 74 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


exports.f = {}.propertyIsEnumerable;

/***/ }),
/* 75 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(76);

module.exports = __w_pdfjs_require__(9).Math.log2;

/***/ }),
/* 76 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

$export($export.S, 'Math', {
 log2: function log2(x) {
   return Math.log(x) / Math.LN2;
 }
});

/***/ }),
/* 77 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(78);

module.exports = __w_pdfjs_require__(9).Number.isNaN;

/***/ }),
/* 78 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

$export($export.S, 'Number', {
 isNaN: function isNaN(number) {
   return number != number;
 }
});

/***/ }),
/* 79 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(80);

module.exports = __w_pdfjs_require__(9).Number.isInteger;

/***/ }),
/* 80 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

$export($export.S, 'Number', {
 isInteger: __w_pdfjs_require__(81)
});

/***/ }),
/* 81 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var floor = Math.floor;

module.exports = function isInteger(it) {
 return !isObject(it) && isFinite(it) && floor(it) === it;
};

/***/ }),
/* 82 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(83);

__w_pdfjs_require__(48);

__w_pdfjs_require__(84);

__w_pdfjs_require__(87);

__w_pdfjs_require__(100);

__w_pdfjs_require__(101);

module.exports = __w_pdfjs_require__(9).Promise;

/***/ }),
/* 83 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var classof = __w_pdfjs_require__(68);

var test = {};
test[__w_pdfjs_require__(33)('toStringTag')] = 'z';

if (test + '' != '[object z]') {
 __w_pdfjs_require__(20)(Object.prototype, 'toString', function toString() {
   return '[object ' + classof(this) + ']';
 }, true);
}

/***/ }),
/* 84 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $iterators = __w_pdfjs_require__(85);

var getKeys = __w_pdfjs_require__(55);

var redefine = __w_pdfjs_require__(20);

var global = __w_pdfjs_require__(8);

var hide = __w_pdfjs_require__(10);

var Iterators = __w_pdfjs_require__(51);

var wks = __w_pdfjs_require__(33);

var ITERATOR = wks('iterator');
var TO_STRING_TAG = wks('toStringTag');
var ArrayValues = Iterators.Array;
var DOMIterables = {
 CSSRuleList: true,
 CSSStyleDeclaration: false,
 CSSValueList: false,
 ClientRectList: false,
 DOMRectList: false,
 DOMStringList: false,
 DOMTokenList: true,
 DataTransferItemList: false,
 FileList: false,
 HTMLAllCollection: false,
 HTMLCollection: false,
 HTMLFormElement: false,
 HTMLSelectElement: false,
 MediaList: true,
 MimeTypeArray: false,
 NamedNodeMap: false,
 NodeList: true,
 PaintRequestList: false,
 Plugin: false,
 PluginArray: false,
 SVGLengthList: false,
 SVGNumberList: false,
 SVGPathSegList: false,
 SVGPointList: false,
 SVGStringList: false,
 SVGTransformList: false,
 SourceBufferList: false,
 StyleSheetList: true,
 TextTrackCueList: false,
 TextTrackList: false,
 TouchList: false
};

for (var collections = getKeys(DOMIterables), i = 0; i < collections.length; i++) {
 var NAME = collections[i];
 var explicit = DOMIterables[NAME];
 var Collection = global[NAME];
 var proto = Collection && Collection.prototype;
 var key;

 if (proto) {
   if (!proto[ITERATOR]) hide(proto, ITERATOR, ArrayValues);
   if (!proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
   Iterators[NAME] = ArrayValues;
   if (explicit) for (key in $iterators) {
     if (!proto[key]) redefine(proto, key, $iterators[key], true);
   }
 }
}

/***/ }),
/* 85 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var addToUnscopables = __w_pdfjs_require__(46);

var step = __w_pdfjs_require__(86);

var Iterators = __w_pdfjs_require__(51);

var toIObject = __w_pdfjs_require__(43);

module.exports = __w_pdfjs_require__(50)(Array, 'Array', function (iterated, kind) {
 this._t = toIObject(iterated);
 this._i = 0;
 this._k = kind;
}, function () {
 var O = this._t;
 var kind = this._k;
 var index = this._i++;

 if (!O || index >= O.length) {
   this._t = undefined;
   return step(1);
 }

 if (kind == 'keys') return step(0, index);
 if (kind == 'values') return step(0, O[index]);
 return step(0, [index, O[index]]);
}, 'values');
Iterators.Arguments = Iterators.Array;
addToUnscopables('keys');
addToUnscopables('values');
addToUnscopables('entries');

/***/ }),
/* 86 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (done, value) {
 return {
   value: value,
   done: !!done
 };
};

/***/ }),
/* 87 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var LIBRARY = __w_pdfjs_require__(25);

var global = __w_pdfjs_require__(8);

var ctx = __w_pdfjs_require__(26);

var classof = __w_pdfjs_require__(68);

var $export = __w_pdfjs_require__(7);

var isObject = __w_pdfjs_require__(13);

var aFunction = __w_pdfjs_require__(27);

var anInstance = __w_pdfjs_require__(88);

var forOf = __w_pdfjs_require__(89);

var speciesConstructor = __w_pdfjs_require__(90);

var task = __w_pdfjs_require__(91).set;

var microtask = __w_pdfjs_require__(93)();

var newPromiseCapabilityModule = __w_pdfjs_require__(94);

var perform = __w_pdfjs_require__(95);

var userAgent = __w_pdfjs_require__(96);

var promiseResolve = __w_pdfjs_require__(97);

var PROMISE = 'Promise';
var TypeError = global.TypeError;
var process = global.process;
var versions = process && process.versions;
var v8 = versions && versions.v8 || '';
var $Promise = global[PROMISE];
var isNode = classof(process) == 'process';

var empty = function empty() {};

var Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;
var newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;
var USE_NATIVE = !!function () {
 try {
   var promise = $Promise.resolve(1);

   var FakePromise = (promise.constructor = {})[__w_pdfjs_require__(33)('species')] = function (exec) {
     exec(empty, empty);
   };

   return (isNode || typeof PromiseRejectionEvent == 'function') && promise.then(empty) instanceof FakePromise && v8.indexOf('6.6') !== 0 && userAgent.indexOf('Chrome/66') === -1;
 } catch (e) {}
}();

var isThenable = function isThenable(it) {
 var then;
 return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
};

var notify = function notify(promise, isReject) {
 if (promise._n) return;
 promise._n = true;
 var chain = promise._c;
 microtask(function () {
   var value = promise._v;
   var ok = promise._s == 1;
   var i = 0;

   var run = function run(reaction) {
     var handler = ok ? reaction.ok : reaction.fail;
     var resolve = reaction.resolve;
     var reject = reaction.reject;
     var domain = reaction.domain;
     var result, then, exited;

     try {
       if (handler) {
         if (!ok) {
           if (promise._h == 2) onHandleUnhandled(promise);
           promise._h = 1;
         }

         if (handler === true) result = value;else {
           if (domain) domain.enter();
           result = handler(value);

           if (domain) {
             domain.exit();
             exited = true;
           }
         }

         if (result === reaction.promise) {
           reject(TypeError('Promise-chain cycle'));
         } else if (then = isThenable(result)) {
           then.call(result, resolve, reject);
         } else resolve(result);
       } else reject(value);
     } catch (e) {
       if (domain && !exited) domain.exit();
       reject(e);
     }
   };

   while (chain.length > i) {
     run(chain[i++]);
   }

   promise._c = [];
   promise._n = false;
   if (isReject && !promise._h) onUnhandled(promise);
 });
};

var onUnhandled = function onUnhandled(promise) {
 task.call(global, function () {
   var value = promise._v;
   var unhandled = isUnhandled(promise);
   var result, handler, console;

   if (unhandled) {
     result = perform(function () {
       if (isNode) {
         process.emit('unhandledRejection', value, promise);
       } else if (handler = global.onunhandledrejection) {
         handler({
           promise: promise,
           reason: value
         });
       } else if ((console = global.console) && console.error) {
         console.error('Unhandled promise rejection', value);
       }
     });
     promise._h = isNode || isUnhandled(promise) ? 2 : 1;
   }

   promise._a = undefined;
   if (unhandled && result.e) throw result.v;
 });
};

var isUnhandled = function isUnhandled(promise) {
 return promise._h !== 1 && (promise._a || promise._c).length === 0;
};

var onHandleUnhandled = function onHandleUnhandled(promise) {
 task.call(global, function () {
   var handler;

   if (isNode) {
     process.emit('rejectionHandled', promise);
   } else if (handler = global.onrejectionhandled) {
     handler({
       promise: promise,
       reason: promise._v
     });
   }
 });
};

var $reject = function $reject(value) {
 var promise = this;
 if (promise._d) return;
 promise._d = true;
 promise = promise._w || promise;
 promise._v = value;
 promise._s = 2;
 if (!promise._a) promise._a = promise._c.slice();
 notify(promise, true);
};

var $resolve = function $resolve(value) {
 var promise = this;
 var then;
 if (promise._d) return;
 promise._d = true;
 promise = promise._w || promise;

 try {
   if (promise === value) throw TypeError("Promise can't be resolved itself");

   if (then = isThenable(value)) {
     microtask(function () {
       var wrapper = {
         _w: promise,
         _d: false
       };

       try {
         then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));
       } catch (e) {
         $reject.call(wrapper, e);
       }
     });
   } else {
     promise._v = value;
     promise._s = 1;
     notify(promise, false);
   }
 } catch (e) {
   $reject.call({
     _w: promise,
     _d: false
   }, e);
 }
};

if (!USE_NATIVE) {
 $Promise = function Promise(executor) {
   anInstance(this, $Promise, PROMISE, '_h');
   aFunction(executor);
   Internal.call(this);

   try {
     executor(ctx($resolve, this, 1), ctx($reject, this, 1));
   } catch (err) {
     $reject.call(this, err);
   }
 };

 Internal = function Promise(executor) {
   this._c = [];
   this._a = undefined;
   this._s = 0;
   this._d = false;
   this._v = undefined;
   this._h = 0;
   this._n = false;
 };

 Internal.prototype = __w_pdfjs_require__(98)($Promise.prototype, {
   then: function then(onFulfilled, onRejected) {
     var reaction = newPromiseCapability(speciesConstructor(this, $Promise));
     reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;
     reaction.fail = typeof onRejected == 'function' && onRejected;
     reaction.domain = isNode ? process.domain : undefined;

     this._c.push(reaction);

     if (this._a) this._a.push(reaction);
     if (this._s) notify(this, false);
     return reaction.promise;
   },
   'catch': function _catch(onRejected) {
     return this.then(undefined, onRejected);
   }
 });

 OwnPromiseCapability = function OwnPromiseCapability() {
   var promise = new Internal();
   this.promise = promise;
   this.resolve = ctx($resolve, promise, 1);
   this.reject = ctx($reject, promise, 1);
 };

 newPromiseCapabilityModule.f = newPromiseCapability = function newPromiseCapability(C) {
   return C === $Promise || C === Wrapper ? new OwnPromiseCapability(C) : newGenericPromiseCapability(C);
 };
}

$export($export.G + $export.W + $export.F * !USE_NATIVE, {
 Promise: $Promise
});

__w_pdfjs_require__(60)($Promise, PROMISE);

__w_pdfjs_require__(99)(PROMISE);

Wrapper = __w_pdfjs_require__(9)[PROMISE];
$export($export.S + $export.F * !USE_NATIVE, PROMISE, {
 reject: function reject(r) {
   var capability = newPromiseCapability(this);
   var $$reject = capability.reject;
   $$reject(r);
   return capability.promise;
 }
});
$export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {
 resolve: function resolve(x) {
   return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);
 }
});
$export($export.S + $export.F * !(USE_NATIVE && __w_pdfjs_require__(69)(function (iter) {
 $Promise.all(iter)['catch'](empty);
})), PROMISE, {
 all: function all(iterable) {
   var C = this;
   var capability = newPromiseCapability(C);
   var resolve = capability.resolve;
   var reject = capability.reject;
   var result = perform(function () {
     var values = [];
     var index = 0;
     var remaining = 1;
     forOf(iterable, false, function (promise) {
       var $index = index++;
       var alreadyCalled = false;
       values.push(undefined);
       remaining++;
       C.resolve(promise).then(function (value) {
         if (alreadyCalled) return;
         alreadyCalled = true;
         values[$index] = value;
         --remaining || resolve(values);
       }, reject);
     });
     --remaining || resolve(values);
   });
   if (result.e) reject(result.v);
   return capability.promise;
 },
 race: function race(iterable) {
   var C = this;
   var capability = newPromiseCapability(C);
   var reject = capability.reject;
   var result = perform(function () {
     forOf(iterable, false, function (promise) {
       C.resolve(promise).then(capability.resolve, reject);
     });
   });
   if (result.e) reject(result.v);
   return capability.promise;
 }
});

/***/ }),
/* 88 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (it, Constructor, name, forbiddenField) {
 if (!(it instanceof Constructor) || forbiddenField !== undefined && forbiddenField in it) {
   throw TypeError(name + ': incorrect invocation!');
 }

 return it;
};

/***/ }),
/* 89 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ctx = __w_pdfjs_require__(26);

var call = __w_pdfjs_require__(64);

var isArrayIter = __w_pdfjs_require__(65);

var anObject = __w_pdfjs_require__(12);

var toLength = __w_pdfjs_require__(28);

var getIterFn = __w_pdfjs_require__(67);

var BREAK = {};
var RETURN = {};

var _exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {
 var iterFn = ITERATOR ? function () {
   return iterable;
 } : getIterFn(iterable);
 var f = ctx(fn, that, entries ? 2 : 1);
 var index = 0;
 var length, step, iterator, result;
 if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');
 if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {
   result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
   if (result === BREAK || result === RETURN) return result;
 } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {
   result = call(iterator, f, step.value, entries);
   if (result === BREAK || result === RETURN) return result;
 }
};

_exports.BREAK = BREAK;
_exports.RETURN = RETURN;

/***/ }),
/* 90 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

var aFunction = __w_pdfjs_require__(27);

var SPECIES = __w_pdfjs_require__(33)('species');

module.exports = function (O, D) {
 var C = anObject(O).constructor;
 var S;
 return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);
};

/***/ }),
/* 91 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ctx = __w_pdfjs_require__(26);

var invoke = __w_pdfjs_require__(92);

var html = __w_pdfjs_require__(59);

var cel = __w_pdfjs_require__(17);

var global = __w_pdfjs_require__(8);

var process = global.process;
var setTask = global.setImmediate;
var clearTask = global.clearImmediate;
var MessageChannel = global.MessageChannel;
var Dispatch = global.Dispatch;
var counter = 0;
var queue = {};
var ONREADYSTATECHANGE = 'onreadystatechange';
var defer, channel, port;

var run = function run() {
 var id = +this;

 if (queue.hasOwnProperty(id)) {
   var fn = queue[id];
   delete queue[id];
   fn();
 }
};

var listener = function listener(event) {
 run.call(event.data);
};

if (!setTask || !clearTask) {
 setTask = function setImmediate(fn) {
   var args = [];
   var i = 1;

   while (arguments.length > i) {
     args.push(arguments[i++]);
   }

   queue[++counter] = function () {
     invoke(typeof fn == 'function' ? fn : Function(fn), args);
   };

   defer(counter);
   return counter;
 };

 clearTask = function clearImmediate(id) {
   delete queue[id];
 };

 if (__w_pdfjs_require__(32)(process) == 'process') {
   defer = function defer(id) {
     process.nextTick(ctx(run, id, 1));
   };
 } else if (Dispatch && Dispatch.now) {
   defer = function defer(id) {
     Dispatch.now(ctx(run, id, 1));
   };
 } else if (MessageChannel) {
   channel = new MessageChannel();
   port = channel.port2;
   channel.port1.onmessage = listener;
   defer = ctx(port.postMessage, port, 1);
 } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {
   defer = function defer(id) {
     global.postMessage(id + '', '*');
   };

   global.addEventListener('message', listener, false);
 } else if (ONREADYSTATECHANGE in cel('script')) {
   defer = function defer(id) {
     html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {
       html.removeChild(this);
       run.call(id);
     };
   };
 } else {
   defer = function defer(id) {
     setTimeout(ctx(run, id, 1), 0);
   };
 }
}

module.exports = {
 set: setTask,
 clear: clearTask
};

/***/ }),
/* 92 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (fn, args, that) {
 var un = that === undefined;

 switch (args.length) {
   case 0:
     return un ? fn() : fn.call(that);

   case 1:
     return un ? fn(args[0]) : fn.call(that, args[0]);

   case 2:
     return un ? fn(args[0], args[1]) : fn.call(that, args[0], args[1]);

   case 3:
     return un ? fn(args[0], args[1], args[2]) : fn.call(that, args[0], args[1], args[2]);

   case 4:
     return un ? fn(args[0], args[1], args[2], args[3]) : fn.call(that, args[0], args[1], args[2], args[3]);
 }

 return fn.apply(that, args);
};

/***/ }),
/* 93 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var macrotask = __w_pdfjs_require__(91).set;

var Observer = global.MutationObserver || global.WebKitMutationObserver;
var process = global.process;
var Promise = global.Promise;
var isNode = __w_pdfjs_require__(32)(process) == 'process';

module.exports = function () {
 var head, last, notify;

 var flush = function flush() {
   var parent, fn;
   if (isNode && (parent = process.domain)) parent.exit();

   while (head) {
     fn = head.fn;
     head = head.next;

     try {
       fn();
     } catch (e) {
       if (head) notify();else last = undefined;
       throw e;
     }
   }

   last = undefined;
   if (parent) parent.enter();
 };

 if (isNode) {
   notify = function notify() {
     process.nextTick(flush);
   };
 } else if (Observer && !(global.navigator && global.navigator.standalone)) {
   var toggle = true;
   var node = document.createTextNode('');
   new Observer(flush).observe(node, {
     characterData: true
   });

   notify = function notify() {
     node.data = toggle = !toggle;
   };
 } else if (Promise && Promise.resolve) {
   var promise = Promise.resolve(undefined);

   notify = function notify() {
     promise.then(flush);
   };
 } else {
   notify = function notify() {
     macrotask.call(global, flush);
   };
 }

 return function (fn) {
   var task = {
     fn: fn,
     next: undefined
   };
   if (last) last.next = task;

   if (!head) {
     head = task;
     notify();
   }

   last = task;
 };
};

/***/ }),
/* 94 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var aFunction = __w_pdfjs_require__(27);

function PromiseCapability(C) {
 var resolve, reject;
 this.promise = new C(function ($$resolve, $$reject) {
   if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
   resolve = $$resolve;
   reject = $$reject;
 });
 this.resolve = aFunction(resolve);
 this.reject = aFunction(reject);
}

module.exports.f = function (C) {
 return new PromiseCapability(C);
};

/***/ }),
/* 95 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (exec) {
 try {
   return {
     e: false,
     v: exec()
   };
 } catch (e) {
   return {
     e: true,
     v: e
   };
 }
};

/***/ }),
/* 96 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var navigator = global.navigator;
module.exports = navigator && navigator.userAgent || '';

/***/ }),
/* 97 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

var isObject = __w_pdfjs_require__(13);

var newPromiseCapability = __w_pdfjs_require__(94);

module.exports = function (C, x) {
 anObject(C);
 if (isObject(x) && x.constructor === C) return x;
 var promiseCapability = newPromiseCapability.f(C);
 var resolve = promiseCapability.resolve;
 resolve(x);
 return promiseCapability.promise;
};

/***/ }),
/* 98 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var redefine = __w_pdfjs_require__(20);

module.exports = function (target, src, safe) {
 for (var key in src) {
   redefine(target, key, src[key], safe);
 }

 return target;
};

/***/ }),
/* 99 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var dP = __w_pdfjs_require__(11);

var DESCRIPTORS = __w_pdfjs_require__(15);

var SPECIES = __w_pdfjs_require__(33)('species');

module.exports = function (KEY) {
 var C = global[KEY];
 if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {
   configurable: true,
   get: function get() {
     return this;
   }
 });
};

/***/ }),
/* 100 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var core = __w_pdfjs_require__(9);

var global = __w_pdfjs_require__(8);

var speciesConstructor = __w_pdfjs_require__(90);

var promiseResolve = __w_pdfjs_require__(97);

$export($export.P + $export.R, 'Promise', {
 'finally': function _finally(onFinally) {
   var C = speciesConstructor(this, core.Promise || global.Promise);
   var isFunction = typeof onFinally == 'function';
   return this.then(isFunction ? function (x) {
     return promiseResolve(C, onFinally()).then(function () {
       return x;
     });
   } : onFinally, isFunction ? function (e) {
     return promiseResolve(C, onFinally()).then(function () {
       throw e;
     });
   } : onFinally);
 }
});

/***/ }),
/* 101 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var newPromiseCapability = __w_pdfjs_require__(94);

var perform = __w_pdfjs_require__(95);

$export($export.S, 'Promise', {
 'try': function _try(callbackfn) {
   var promiseCapability = newPromiseCapability.f(this);
   var result = perform(callbackfn);
   (result.e ? promiseCapability.reject : promiseCapability.resolve)(result.v);
   return promiseCapability.promise;
 }
});

/***/ }),
/* 102 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(83);

__w_pdfjs_require__(84);

__w_pdfjs_require__(103);

__w_pdfjs_require__(115);

__w_pdfjs_require__(117);

module.exports = __w_pdfjs_require__(9).WeakMap;

/***/ }),
/* 103 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var each = __w_pdfjs_require__(104)(0);

var redefine = __w_pdfjs_require__(20);

var meta = __w_pdfjs_require__(108);

var assign = __w_pdfjs_require__(72);

var weak = __w_pdfjs_require__(109);

var isObject = __w_pdfjs_require__(13);

var validate = __w_pdfjs_require__(110);

var NATIVE_WEAK_MAP = __w_pdfjs_require__(110);

var IS_IE11 = !global.ActiveXObject && 'ActiveXObject' in global;
var WEAK_MAP = 'WeakMap';
var getWeak = meta.getWeak;
var isExtensible = Object.isExtensible;
var uncaughtFrozenStore = weak.ufstore;
var InternalMap;

var wrapper = function wrapper(get) {
 return function WeakMap() {
   return get(this, arguments.length > 0 ? arguments[0] : undefined);
 };
};

var methods = {
 get: function get(key) {
   if (isObject(key)) {
     var data = getWeak(key);
     if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);
     return data ? data[this._i] : undefined;
   }
 },
 set: function set(key, value) {
   return weak.def(validate(this, WEAK_MAP), key, value);
 }
};

var $WeakMap = module.exports = __w_pdfjs_require__(111)(WEAK_MAP, wrapper, methods, weak, true, true);

if (NATIVE_WEAK_MAP && IS_IE11) {
 InternalMap = weak.getConstructor(wrapper, WEAK_MAP);
 assign(InternalMap.prototype, methods);
 meta.NEED = true;
 each(['delete', 'has', 'get', 'set'], function (key) {
   var proto = $WeakMap.prototype;
   var method = proto[key];
   redefine(proto, key, function (a, b) {
     if (isObject(a) && !isExtensible(a)) {
       if (!this._f) this._f = new InternalMap();

       var result = this._f[key](a, b);

       return key == 'set' ? this : result;
     }

     return method.call(this, a, b);
   });
 });
}

/***/ }),
/* 104 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ctx = __w_pdfjs_require__(26);

var IObject = __w_pdfjs_require__(44);

var toObject = __w_pdfjs_require__(62);

var toLength = __w_pdfjs_require__(28);

var asc = __w_pdfjs_require__(105);

module.exports = function (TYPE, $create) {
 var IS_MAP = TYPE == 1;
 var IS_FILTER = TYPE == 2;
 var IS_SOME = TYPE == 3;
 var IS_EVERY = TYPE == 4;
 var IS_FIND_INDEX = TYPE == 6;
 var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
 var create = $create || asc;
 return function ($this, callbackfn, that) {
   var O = toObject($this);
   var self = IObject(O);
   var f = ctx(callbackfn, that, 3);
   var length = toLength(self.length);
   var index = 0;
   var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
   var val, res;

   for (; length > index; index++) {
     if (NO_HOLES || index in self) {
       val = self[index];
       res = f(val, index, O);

       if (TYPE) {
         if (IS_MAP) result[index] = res;else if (res) switch (TYPE) {
           case 3:
             return true;

           case 5:
             return val;

           case 6:
             return index;

           case 2:
             result.push(val);
         } else if (IS_EVERY) return false;
       }
     }
   }

   return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
 };
};

/***/ }),
/* 105 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var speciesConstructor = __w_pdfjs_require__(106);

module.exports = function (original, length) {
 return new (speciesConstructor(original))(length);
};

/***/ }),
/* 106 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var isArray = __w_pdfjs_require__(107);

var SPECIES = __w_pdfjs_require__(33)('species');

module.exports = function (original) {
 var C;

 if (isArray(original)) {
   C = original.constructor;
   if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;

   if (isObject(C)) {
     C = C[SPECIES];
     if (C === null) C = undefined;
   }
 }

 return C === undefined ? Array : C;
};

/***/ }),
/* 107 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var cof = __w_pdfjs_require__(32);

module.exports = Array.isArray || function isArray(arg) {
 return cof(arg) == 'Array';
};

/***/ }),
/* 108 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var META = __w_pdfjs_require__(22)('meta');

var isObject = __w_pdfjs_require__(13);

var has = __w_pdfjs_require__(21);

var setDesc = __w_pdfjs_require__(11).f;

var id = 0;

var isExtensible = Object.isExtensible || function () {
 return true;
};

var FREEZE = !__w_pdfjs_require__(16)(function () {
 return isExtensible(Object.preventExtensions({}));
});

var setMeta = function setMeta(it) {
 setDesc(it, META, {
   value: {
     i: 'O' + ++id,
     w: {}
   }
 });
};

var fastKey = function fastKey(it, create) {
 if (!isObject(it)) return _typeof(it) == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;

 if (!has(it, META)) {
   if (!isExtensible(it)) return 'F';
   if (!create) return 'E';
   setMeta(it);
 }

 return it[META].i;
};

var getWeak = function getWeak(it, create) {
 if (!has(it, META)) {
   if (!isExtensible(it)) return true;
   if (!create) return false;
   setMeta(it);
 }

 return it[META].w;
};

var onFreeze = function onFreeze(it) {
 if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
 return it;
};

var meta = module.exports = {
 KEY: META,
 NEED: false,
 fastKey: fastKey,
 getWeak: getWeak,
 onFreeze: onFreeze
};

/***/ }),
/* 109 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var redefineAll = __w_pdfjs_require__(98);

var getWeak = __w_pdfjs_require__(108).getWeak;

var anObject = __w_pdfjs_require__(12);

var isObject = __w_pdfjs_require__(13);

var anInstance = __w_pdfjs_require__(88);

var forOf = __w_pdfjs_require__(89);

var createArrayMethod = __w_pdfjs_require__(104);

var $has = __w_pdfjs_require__(21);

var validate = __w_pdfjs_require__(110);

var arrayFind = createArrayMethod(5);
var arrayFindIndex = createArrayMethod(6);
var id = 0;

var uncaughtFrozenStore = function uncaughtFrozenStore(that) {
 return that._l || (that._l = new UncaughtFrozenStore());
};

var UncaughtFrozenStore = function UncaughtFrozenStore() {
 this.a = [];
};

var findUncaughtFrozen = function findUncaughtFrozen(store, key) {
 return arrayFind(store.a, function (it) {
   return it[0] === key;
 });
};

UncaughtFrozenStore.prototype = {
 get: function get(key) {
   var entry = findUncaughtFrozen(this, key);
   if (entry) return entry[1];
 },
 has: function has(key) {
   return !!findUncaughtFrozen(this, key);
 },
 set: function set(key, value) {
   var entry = findUncaughtFrozen(this, key);
   if (entry) entry[1] = value;else this.a.push([key, value]);
 },
 'delete': function _delete(key) {
   var index = arrayFindIndex(this.a, function (it) {
     return it[0] === key;
   });
   if (~index) this.a.splice(index, 1);
   return !!~index;
 }
};
module.exports = {
 getConstructor: function getConstructor(wrapper, NAME, IS_MAP, ADDER) {
   var C = wrapper(function (that, iterable) {
     anInstance(that, C, NAME, '_i');
     that._t = NAME;
     that._i = id++;
     that._l = undefined;
     if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
   });
   redefineAll(C.prototype, {
     'delete': function _delete(key) {
       if (!isObject(key)) return false;
       var data = getWeak(key);
       if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);
       return data && $has(data, this._i) && delete data[this._i];
     },
     has: function has(key) {
       if (!isObject(key)) return false;
       var data = getWeak(key);
       if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);
       return data && $has(data, this._i);
     }
   });
   return C;
 },
 def: function def(that, key, value) {
   var data = getWeak(anObject(key), true);
   if (data === true) uncaughtFrozenStore(that).set(key, value);else data[that._i] = value;
   return that;
 },
 ufstore: uncaughtFrozenStore
};

/***/ }),
/* 110 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

module.exports = function (it, TYPE) {
 if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');
 return it;
};

/***/ }),
/* 111 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var $export = __w_pdfjs_require__(7);

var redefine = __w_pdfjs_require__(20);

var redefineAll = __w_pdfjs_require__(98);

var meta = __w_pdfjs_require__(108);

var forOf = __w_pdfjs_require__(89);

var anInstance = __w_pdfjs_require__(88);

var isObject = __w_pdfjs_require__(13);

var fails = __w_pdfjs_require__(16);

var $iterDetect = __w_pdfjs_require__(69);

var setToStringTag = __w_pdfjs_require__(60);

var inheritIfRequired = __w_pdfjs_require__(112);

module.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {
 var Base = global[NAME];
 var C = Base;
 var ADDER = IS_MAP ? 'set' : 'add';
 var proto = C && C.prototype;
 var O = {};

 var fixMethod = function fixMethod(KEY) {
   var fn = proto[KEY];
   redefine(proto, KEY, KEY == 'delete' ? function (a) {
     return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
   } : KEY == 'has' ? function has(a) {
     return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
   } : KEY == 'get' ? function get(a) {
     return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);
   } : KEY == 'add' ? function add(a) {
     fn.call(this, a === 0 ? 0 : a);
     return this;
   } : function set(a, b) {
     fn.call(this, a === 0 ? 0 : a, b);
     return this;
   });
 };

 if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {
   new C().entries().next();
 }))) {
   C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
   redefineAll(C.prototype, methods);
   meta.NEED = true;
 } else {
   var instance = new C();
   var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;
   var THROWS_ON_PRIMITIVES = fails(function () {
     instance.has(1);
   });
   var ACCEPT_ITERABLES = $iterDetect(function (iter) {
     new C(iter);
   });
   var BUGGY_ZERO = !IS_WEAK && fails(function () {
     var $instance = new C();
     var index = 5;

     while (index--) {
       $instance[ADDER](index, index);
     }

     return !$instance.has(-0);
   });

   if (!ACCEPT_ITERABLES) {
     C = wrapper(function (target, iterable) {
       anInstance(target, C, NAME);
       var that = inheritIfRequired(new Base(), target, C);
       if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
       return that;
     });
     C.prototype = proto;
     proto.constructor = C;
   }

   if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {
     fixMethod('delete');
     fixMethod('has');
     IS_MAP && fixMethod('get');
   }

   if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);
   if (IS_WEAK && proto.clear) delete proto.clear;
 }

 setToStringTag(C, NAME);
 O[NAME] = C;
 $export($export.G + $export.W + $export.F * (C != Base), O);
 if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);
 return C;
};

/***/ }),
/* 112 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var setPrototypeOf = __w_pdfjs_require__(113).set;

module.exports = function (that, target, C) {
 var S = target.constructor;
 var P;

 if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {
   setPrototypeOf(that, P);
 }

 return that;
};

/***/ }),
/* 113 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var anObject = __w_pdfjs_require__(12);

var check = function check(O, proto) {
 anObject(O);
 if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
};

module.exports = {
 set: Object.setPrototypeOf || ('__proto__' in {} ? function (test, buggy, set) {
   try {
     set = __w_pdfjs_require__(26)(Function.call, __w_pdfjs_require__(114).f(Object.prototype, '__proto__').set, 2);
     set(test, []);
     buggy = !(test instanceof Array);
   } catch (e) {
     buggy = true;
   }

   return function setPrototypeOf(O, proto) {
     check(O, proto);
     if (buggy) O.__proto__ = proto;else set(O, proto);
     return O;
   };
 }({}, false) : undefined),
 check: check
};

/***/ }),
/* 114 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var pIE = __w_pdfjs_require__(74);

var createDesc = __w_pdfjs_require__(19);

var toIObject = __w_pdfjs_require__(43);

var toPrimitive = __w_pdfjs_require__(18);

var has = __w_pdfjs_require__(21);

var IE8_DOM_DEFINE = __w_pdfjs_require__(14);

var gOPD = Object.getOwnPropertyDescriptor;
exports.f = __w_pdfjs_require__(15) ? gOPD : function getOwnPropertyDescriptor(O, P) {
 O = toIObject(O);
 P = toPrimitive(P, true);
 if (IE8_DOM_DEFINE) try {
   return gOPD(O, P);
 } catch (e) {}
 if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
};

/***/ }),
/* 115 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(116)('WeakMap');

/***/ }),
/* 116 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

module.exports = function (COLLECTION) {
 $export($export.S, COLLECTION, {
   of: function of() {
     var length = arguments.length;
     var A = new Array(length);

     while (length--) {
       A[length] = arguments[length];
     }

     return new this(A);
   }
 });
};

/***/ }),
/* 117 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(118)('WeakMap');

/***/ }),
/* 118 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var aFunction = __w_pdfjs_require__(27);

var ctx = __w_pdfjs_require__(26);

var forOf = __w_pdfjs_require__(89);

module.exports = function (COLLECTION) {
 $export($export.S, COLLECTION, {
   from: function from(source) {
     var mapFn = arguments[1];
     var mapping, A, n, cb;
     aFunction(this);
     mapping = mapFn !== undefined;
     if (mapping) aFunction(mapFn);
     if (source == undefined) return new this();
     A = [];

     if (mapping) {
       n = 0;
       cb = ctx(mapFn, arguments[2], 2);
       forOf(source, false, function (nextItem) {
         A.push(cb(nextItem, n++));
       });
     } else {
       forOf(source, false, A.push, A);
     }

     return new this(A);
   }
 });
};

/***/ }),
/* 119 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(83);

__w_pdfjs_require__(84);

__w_pdfjs_require__(120);

__w_pdfjs_require__(121);

__w_pdfjs_require__(122);

module.exports = __w_pdfjs_require__(9).WeakSet;

/***/ }),
/* 120 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var weak = __w_pdfjs_require__(109);

var validate = __w_pdfjs_require__(110);

var WEAK_SET = 'WeakSet';

__w_pdfjs_require__(111)(WEAK_SET, function (get) {
 return function WeakSet() {
   return get(this, arguments.length > 0 ? arguments[0] : undefined);
 };
}, {
 add: function add(value) {
   return weak.def(validate(this, WEAK_SET), value, true);
 }
}, weak, false, true);

/***/ }),
/* 121 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(116)('WeakSet');

/***/ }),
/* 122 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(118)('WeakSet');

/***/ }),
/* 123 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(124);

module.exports = __w_pdfjs_require__(9).String.codePointAt;

/***/ }),
/* 124 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $at = __w_pdfjs_require__(49)(false);

$export($export.P, 'String', {
 codePointAt: function codePointAt(pos) {
   return $at(this, pos);
 }
});

/***/ }),
/* 125 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(126);

module.exports = __w_pdfjs_require__(9).String.fromCodePoint;

/***/ }),
/* 126 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var toAbsoluteIndex = __w_pdfjs_require__(45);

var fromCharCode = String.fromCharCode;
var $fromCodePoint = String.fromCodePoint;
$export($export.S + $export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
 fromCodePoint: function fromCodePoint(x) {
   var res = [];
   var aLen = arguments.length;
   var i = 0;
   var code;

   while (aLen > i) {
     code = +arguments[i++];
     if (toAbsoluteIndex(code, 0x10ffff) !== code) throw RangeError(code + ' is not a valid code point');
     res.push(code < 0x10000 ? fromCharCode(code) : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00));
   }

   return res.join('');
 }
});

/***/ }),
/* 127 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(128);

__w_pdfjs_require__(83);

module.exports = __w_pdfjs_require__(9).Symbol;

/***/ }),
/* 128 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var global = __w_pdfjs_require__(8);

var has = __w_pdfjs_require__(21);

var DESCRIPTORS = __w_pdfjs_require__(15);

var $export = __w_pdfjs_require__(7);

var redefine = __w_pdfjs_require__(20);

var META = __w_pdfjs_require__(108).KEY;

var $fails = __w_pdfjs_require__(16);

var shared = __w_pdfjs_require__(24);

var setToStringTag = __w_pdfjs_require__(60);

var uid = __w_pdfjs_require__(22);

var wks = __w_pdfjs_require__(33);

var wksExt = __w_pdfjs_require__(129);

var wksDefine = __w_pdfjs_require__(130);

var enumKeys = __w_pdfjs_require__(131);

var isArray = __w_pdfjs_require__(107);

var anObject = __w_pdfjs_require__(12);

var isObject = __w_pdfjs_require__(13);

var toObject = __w_pdfjs_require__(62);

var toIObject = __w_pdfjs_require__(43);

var toPrimitive = __w_pdfjs_require__(18);

var createDesc = __w_pdfjs_require__(19);

var _create = __w_pdfjs_require__(53);

var gOPNExt = __w_pdfjs_require__(132);

var $GOPD = __w_pdfjs_require__(114);

var $GOPS = __w_pdfjs_require__(73);

var $DP = __w_pdfjs_require__(11);

var $keys = __w_pdfjs_require__(55);

var gOPD = $GOPD.f;
var dP = $DP.f;
var gOPN = gOPNExt.f;
var $Symbol = global.Symbol;
var $JSON = global.JSON;

var _stringify = $JSON && $JSON.stringify;

var PROTOTYPE = 'prototype';
var HIDDEN = wks('_hidden');
var TO_PRIMITIVE = wks('toPrimitive');
var isEnum = {}.propertyIsEnumerable;
var SymbolRegistry = shared('symbol-registry');
var AllSymbols = shared('symbols');
var OPSymbols = shared('op-symbols');
var ObjectProto = Object[PROTOTYPE];
var USE_NATIVE = typeof $Symbol == 'function' && !!$GOPS.f;
var QObject = global.QObject;
var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;
var setSymbolDesc = DESCRIPTORS && $fails(function () {
 return _create(dP({}, 'a', {
   get: function get() {
     return dP(this, 'a', {
       value: 7
     }).a;
   }
 })).a != 7;
}) ? function (it, key, D) {
 var protoDesc = gOPD(ObjectProto, key);
 if (protoDesc) delete ObjectProto[key];
 dP(it, key, D);
 if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
} : dP;

var wrap = function wrap(tag) {
 var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);

 sym._k = tag;
 return sym;
};

var isSymbol = USE_NATIVE && _typeof($Symbol.iterator) == 'symbol' ? function (it) {
 return _typeof(it) == 'symbol';
} : function (it) {
 return it instanceof $Symbol;
};

var $defineProperty = function defineProperty(it, key, D) {
 if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
 anObject(it);
 key = toPrimitive(key, true);
 anObject(D);

 if (has(AllSymbols, key)) {
   if (!D.enumerable) {
     if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
     it[HIDDEN][key] = true;
   } else {
     if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
     D = _create(D, {
       enumerable: createDesc(0, false)
     });
   }

   return setSymbolDesc(it, key, D);
 }

 return dP(it, key, D);
};

var $defineProperties = function defineProperties(it, P) {
 anObject(it);
 var keys = enumKeys(P = toIObject(P));
 var i = 0;
 var l = keys.length;
 var key;

 while (l > i) {
   $defineProperty(it, key = keys[i++], P[key]);
 }

 return it;
};

var $create = function create(it, P) {
 return P === undefined ? _create(it) : $defineProperties(_create(it), P);
};

var $propertyIsEnumerable = function propertyIsEnumerable(key) {
 var E = isEnum.call(this, key = toPrimitive(key, true));
 if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;
 return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
};

var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
 it = toIObject(it);
 key = toPrimitive(key, true);
 if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
 var D = gOPD(it, key);
 if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
 return D;
};

var $getOwnPropertyNames = function getOwnPropertyNames(it) {
 var names = gOPN(toIObject(it));
 var result = [];
 var i = 0;
 var key;

 while (names.length > i) {
   if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
 }

 return result;
};

var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
 var IS_OP = it === ObjectProto;
 var names = gOPN(IS_OP ? OPSymbols : toIObject(it));
 var result = [];
 var i = 0;
 var key;

 while (names.length > i) {
   if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);
 }

 return result;
};

if (!USE_NATIVE) {
 $Symbol = function _Symbol() {
   if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
   var tag = uid(arguments.length > 0 ? arguments[0] : undefined);

   var $set = function $set(value) {
     if (this === ObjectProto) $set.call(OPSymbols, value);
     if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
     setSymbolDesc(this, tag, createDesc(1, value));
   };

   if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, {
     configurable: true,
     set: $set
   });
   return wrap(tag);
 };

 redefine($Symbol[PROTOTYPE], 'toString', function toString() {
   return this._k;
 });
 $GOPD.f = $getOwnPropertyDescriptor;
 $DP.f = $defineProperty;
 __w_pdfjs_require__(133).f = gOPNExt.f = $getOwnPropertyNames;
 __w_pdfjs_require__(74).f = $propertyIsEnumerable;
 $GOPS.f = $getOwnPropertySymbols;

 if (DESCRIPTORS && !__w_pdfjs_require__(25)) {
   redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
 }

 wksExt.f = function (name) {
   return wrap(wks(name));
 };
}

$export($export.G + $export.W + $export.F * !USE_NATIVE, {
 Symbol: $Symbol
});

for (var es6Symbols = 'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'.split(','), j = 0; es6Symbols.length > j;) {
 wks(es6Symbols[j++]);
}

for (var wellKnownSymbols = $keys(wks.store), k = 0; wellKnownSymbols.length > k;) {
 wksDefine(wellKnownSymbols[k++]);
}

$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
 'for': function _for(key) {
   return has(SymbolRegistry, key += '') ? SymbolRegistry[key] : SymbolRegistry[key] = $Symbol(key);
 },
 keyFor: function keyFor(sym) {
   if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');

   for (var key in SymbolRegistry) {
     if (SymbolRegistry[key] === sym) return key;
   }
 },
 useSetter: function useSetter() {
   setter = true;
 },
 useSimple: function useSimple() {
   setter = false;
 }
});
$export($export.S + $export.F * !USE_NATIVE, 'Object', {
 create: $create,
 defineProperty: $defineProperty,
 defineProperties: $defineProperties,
 getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
 getOwnPropertyNames: $getOwnPropertyNames,
 getOwnPropertySymbols: $getOwnPropertySymbols
});
var FAILS_ON_PRIMITIVES = $fails(function () {
 $GOPS.f(1);
});
$export($export.S + $export.F * FAILS_ON_PRIMITIVES, 'Object', {
 getOwnPropertySymbols: function getOwnPropertySymbols(it) {
   return $GOPS.f(toObject(it));
 }
});
$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {
 var S = $Symbol();
 return _stringify([S]) != '[null]' || _stringify({
   a: S
 }) != '{}' || _stringify(Object(S)) != '{}';
})), 'JSON', {
 stringify: function stringify(it) {
   var args = [it];
   var i = 1;
   var replacer, $replacer;

   while (arguments.length > i) {
     args.push(arguments[i++]);
   }

   $replacer = replacer = args[1];
   if (!isObject(replacer) && it === undefined || isSymbol(it)) return;
   if (!isArray(replacer)) replacer = function replacer(key, value) {
     if (typeof $replacer == 'function') value = $replacer.call(this, key, value);
     if (!isSymbol(value)) return value;
   };
   args[1] = replacer;
   return _stringify.apply($JSON, args);
 }
});
$Symbol[PROTOTYPE][TO_PRIMITIVE] || __w_pdfjs_require__(10)($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
setToStringTag($Symbol, 'Symbol');
setToStringTag(Math, 'Math', true);
setToStringTag(global.JSON, 'JSON', true);

/***/ }),
/* 129 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


exports.f = __w_pdfjs_require__(33);

/***/ }),
/* 130 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var core = __w_pdfjs_require__(9);

var LIBRARY = __w_pdfjs_require__(25);

var wksExt = __w_pdfjs_require__(129);

var defineProperty = __w_pdfjs_require__(11).f;

module.exports = function (name) {
 var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
 if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, {
   value: wksExt.f(name)
 });
};

/***/ }),
/* 131 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var getKeys = __w_pdfjs_require__(55);

var gOPS = __w_pdfjs_require__(73);

var pIE = __w_pdfjs_require__(74);

module.exports = function (it) {
 var result = getKeys(it);
 var getSymbols = gOPS.f;

 if (getSymbols) {
   var symbols = getSymbols(it);
   var isEnum = pIE.f;
   var i = 0;
   var key;

   while (symbols.length > i) {
     if (isEnum.call(it, key = symbols[i++])) result.push(key);
   }
 }

 return result;
};

/***/ }),
/* 132 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var toIObject = __w_pdfjs_require__(43);

var gOPN = __w_pdfjs_require__(133).f;

var toString = {}.toString;
var windowNames = (typeof window === "undefined" ? "undefined" : _typeof(window)) == 'object' && window && Object.getOwnPropertyNames ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function getWindowNames(it) {
 try {
   return gOPN(it);
 } catch (e) {
   return windowNames.slice();
 }
};

module.exports.f = function getOwnPropertyNames(it) {
 return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));
};

/***/ }),
/* 133 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $keys = __w_pdfjs_require__(56);

var hiddenKeys = __w_pdfjs_require__(58).concat('length', 'prototype');

exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
 return $keys(O, hiddenKeys);
};

/***/ }),
/* 134 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(135);

module.exports = __w_pdfjs_require__(9).String.padStart;

/***/ }),
/* 135 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $pad = __w_pdfjs_require__(136);

var userAgent = __w_pdfjs_require__(96);

var WEBKIT_BUG = /Version\/10\.\d+(\.\d+)?( Mobile\/\w+)? Safari\//.test(userAgent);
$export($export.P + $export.F * WEBKIT_BUG, 'String', {
 padStart: function padStart(maxLength) {
   return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, true);
 }
});

/***/ }),
/* 136 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toLength = __w_pdfjs_require__(28);

var repeat = __w_pdfjs_require__(137);

var defined = __w_pdfjs_require__(34);

module.exports = function (that, maxLength, fillString, left) {
 var S = String(defined(that));
 var stringLength = S.length;
 var fillStr = fillString === undefined ? ' ' : String(fillString);
 var intMaxLength = toLength(maxLength);
 if (intMaxLength <= stringLength || fillStr == '') return S;
 var fillLen = intMaxLength - stringLength;
 var stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));
 if (stringFiller.length > fillLen) stringFiller = stringFiller.slice(0, fillLen);
 return left ? stringFiller + S : S + stringFiller;
};

/***/ }),
/* 137 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toInteger = __w_pdfjs_require__(29);

var defined = __w_pdfjs_require__(34);

module.exports = function repeat(count) {
 var str = String(defined(this));
 var res = '';
 var n = toInteger(count);
 if (n < 0 || n == Infinity) throw RangeError("Count can't be negative");

 for (; n > 0; (n >>>= 1) && (str += str)) {
   if (n & 1) res += str;
 }

 return res;
};

/***/ }),
/* 138 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(139);

module.exports = __w_pdfjs_require__(9).String.padEnd;

/***/ }),
/* 139 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $pad = __w_pdfjs_require__(136);

var userAgent = __w_pdfjs_require__(96);

var WEBKIT_BUG = /Version\/10\.\d+(\.\d+)?( Mobile\/\w+)? Safari\//.test(userAgent);
$export($export.P + $export.F * WEBKIT_BUG, 'String', {
 padEnd: function padEnd(maxLength) {
   return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, false);
 }
});

/***/ }),
/* 140 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(141);

module.exports = __w_pdfjs_require__(9).Object.values;

/***/ }),
/* 141 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $values = __w_pdfjs_require__(142)(false);

$export($export.S, 'Object', {
 values: function values(it) {
   return $values(it);
 }
});

/***/ }),
/* 142 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var DESCRIPTORS = __w_pdfjs_require__(15);

var getKeys = __w_pdfjs_require__(55);

var toIObject = __w_pdfjs_require__(43);

var isEnum = __w_pdfjs_require__(74).f;

module.exports = function (isEntries) {
 return function (it) {
   var O = toIObject(it);
   var keys = getKeys(O);
   var length = keys.length;
   var i = 0;
   var result = [];
   var key;

   while (length > i) {
     key = keys[i++];

     if (!DESCRIPTORS || isEnum.call(O, key)) {
       result.push(isEntries ? [key, O[key]] : O[key]);
     }
   }

   return result;
 };
};

/***/ }),
/* 143 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


{
 var isReadableStreamSupported = false;

 if (typeof ReadableStream !== 'undefined') {
   try {
     new ReadableStream({
       start: function start(controller) {
         controller.close();
       }
     });
     isReadableStreamSupported = true;
   } catch (e) {}
 }

 if (isReadableStreamSupported) {
   exports.ReadableStream = ReadableStream;
 } else {
   exports.ReadableStream = __w_pdfjs_require__(144).ReadableStream;
 }
}

/***/ }),
/* 144 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof2(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof2 = function _typeof2(obj) { return typeof obj; }; } else { _typeof2 = function _typeof2(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof2(obj); }

(function (e, a) {
 for (var i in a) {
   e[i] = a[i];
 }
})(exports, function (modules) {
 var installedModules = {};

 function __w_pdfjs_require__(moduleId) {
   if (installedModules[moduleId]) return installedModules[moduleId].exports;
   var module = installedModules[moduleId] = {
     i: moduleId,
     l: false,
     exports: {}
   };
   modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
   module.l = true;
   return module.exports;
 }

 __w_pdfjs_require__.m = modules;
 __w_pdfjs_require__.c = installedModules;

 __w_pdfjs_require__.i = function (value) {
   return value;
 };

 __w_pdfjs_require__.d = function (exports, name, getter) {
   if (!__w_pdfjs_require__.o(exports, name)) {
     Object.defineProperty(exports, name, {
       configurable: false,
       enumerable: true,
       get: getter
     });
   }
 };

 __w_pdfjs_require__.n = function (module) {
   var getter = module && module.__esModule ? function getDefault() {
     return module['default'];
   } : function getModuleExports() {
     return module;
   };

   __w_pdfjs_require__.d(getter, 'a', getter);

   return getter;
 };

 __w_pdfjs_require__.o = function (object, property) {
   return Object.prototype.hasOwnProperty.call(object, property);
 };

 __w_pdfjs_require__.p = "";
 return __w_pdfjs_require__(__w_pdfjs_require__.s = 7);
}([function (module, exports, __w_pdfjs_require__) {
 "use strict";

 var _typeof = typeof Symbol === "function" && _typeof2(Symbol.iterator) === "symbol" ? function (obj) {
   return _typeof2(obj);
 } : function (obj) {
   return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : _typeof2(obj);
 };

 var _require = __w_pdfjs_require__(1),
     assert = _require.assert;

 function IsPropertyKey(argument) {
   return typeof argument === 'string' || (typeof argument === 'undefined' ? 'undefined' : _typeof(argument)) === 'symbol';
 }

 exports.typeIsObject = function (x) {
   return (typeof x === 'undefined' ? 'undefined' : _typeof(x)) === 'object' && x !== null || typeof x === 'function';
 };

 exports.createDataProperty = function (o, p, v) {
   assert(exports.typeIsObject(o));
   Object.defineProperty(o, p, {
     value: v,
     writable: true,
     enumerable: true,
     configurable: true
   });
 };

 exports.createArrayFromList = function (elements) {
   return elements.slice();
 };

 exports.ArrayBufferCopy = function (dest, destOffset, src, srcOffset, n) {
   new Uint8Array(dest).set(new Uint8Array(src, srcOffset, n), destOffset);
 };

 exports.CreateIterResultObject = function (value, done) {
   assert(typeof done === 'boolean');
   var obj = {};
   Object.defineProperty(obj, 'value', {
     value: value,
     enumerable: true,
     writable: true,
     configurable: true
   });
   Object.defineProperty(obj, 'done', {
     value: done,
     enumerable: true,
     writable: true,
     configurable: true
   });
   return obj;
 };

 exports.IsFiniteNonNegativeNumber = function (v) {
   if (Number.isNaN(v)) {
     return false;
   }

   if (v === Infinity) {
     return false;
   }

   if (v < 0) {
     return false;
   }

   return true;
 };

 function Call(F, V, args) {
   if (typeof F !== 'function') {
     throw new TypeError('Argument is not a function');
   }

   return Function.prototype.apply.call(F, V, args);
 }

 exports.InvokeOrNoop = function (O, P, args) {
   assert(O !== undefined);
   assert(IsPropertyKey(P));
   assert(Array.isArray(args));
   var method = O[P];

   if (method === undefined) {
     return undefined;
   }

   return Call(method, O, args);
 };

 exports.PromiseInvokeOrNoop = function (O, P, args) {
   assert(O !== undefined);
   assert(IsPropertyKey(P));
   assert(Array.isArray(args));

   try {
     return Promise.resolve(exports.InvokeOrNoop(O, P, args));
   } catch (returnValueE) {
     return Promise.reject(returnValueE);
   }
 };

 exports.PromiseInvokeOrPerformFallback = function (O, P, args, F, argsF) {
   assert(O !== undefined);
   assert(IsPropertyKey(P));
   assert(Array.isArray(args));
   assert(Array.isArray(argsF));
   var method = void 0;

   try {
     method = O[P];
   } catch (methodE) {
     return Promise.reject(methodE);
   }

   if (method === undefined) {
     return F.apply(null, argsF);
   }

   try {
     return Promise.resolve(Call(method, O, args));
   } catch (e) {
     return Promise.reject(e);
   }
 };

 exports.TransferArrayBuffer = function (O) {
   return O.slice();
 };

 exports.ValidateAndNormalizeHighWaterMark = function (highWaterMark) {
   highWaterMark = Number(highWaterMark);

   if (Number.isNaN(highWaterMark) || highWaterMark < 0) {
     throw new RangeError('highWaterMark property of a queuing strategy must be non-negative and non-NaN');
   }

   return highWaterMark;
 };

 exports.ValidateAndNormalizeQueuingStrategy = function (size, highWaterMark) {
   if (size !== undefined && typeof size !== 'function') {
     throw new TypeError('size property of a queuing strategy must be a function');
   }

   highWaterMark = exports.ValidateAndNormalizeHighWaterMark(highWaterMark);
   return {
     size: size,
     highWaterMark: highWaterMark
   };
 };
}, function (module, exports, __w_pdfjs_require__) {
 "use strict";

 function rethrowAssertionErrorRejection(e) {
   if (e && e.constructor === AssertionError) {
     setTimeout(function () {
       throw e;
     }, 0);
   }
 }

 function AssertionError(message) {
   this.name = 'AssertionError';
   this.message = message || '';
   this.stack = new Error().stack;
 }

 AssertionError.prototype = Object.create(Error.prototype);
 AssertionError.prototype.constructor = AssertionError;

 function assert(value, message) {
   if (!value) {
     throw new AssertionError(message);
   }
 }

 module.exports = {
   rethrowAssertionErrorRejection: rethrowAssertionErrorRejection,
   AssertionError: AssertionError,
   assert: assert
 };
}, function (module, exports, __w_pdfjs_require__) {
 "use strict";

 var _createClass = function () {
   function defineProperties(target, props) {
     for (var i = 0; i < props.length; i++) {
       var descriptor = props[i];
       descriptor.enumerable = descriptor.enumerable || false;
       descriptor.configurable = true;
       if ("value" in descriptor) descriptor.writable = true;
       Object.defineProperty(target, descriptor.key, descriptor);
     }
   }

   return function (Constructor, protoProps, staticProps) {
     if (protoProps) defineProperties(Constructor.prototype, protoProps);
     if (staticProps) defineProperties(Constructor, staticProps);
     return Constructor;
   };
 }();

 function _classCallCheck(instance, Constructor) {
   if (!(instance instanceof Constructor)) {
     throw new TypeError("Cannot call a class as a function");
   }
 }

 var _require = __w_pdfjs_require__(0),
     InvokeOrNoop = _require.InvokeOrNoop,
     PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,
     ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,
     typeIsObject = _require.typeIsObject;

 var _require2 = __w_pdfjs_require__(1),
     assert = _require2.assert,
     rethrowAssertionErrorRejection = _require2.rethrowAssertionErrorRejection;

 var _require3 = __w_pdfjs_require__(3),
     DequeueValue = _require3.DequeueValue,
     EnqueueValueWithSize = _require3.EnqueueValueWithSize,
     PeekQueueValue = _require3.PeekQueueValue,
     ResetQueue = _require3.ResetQueue;

 var WritableStream = function () {
   function WritableStream() {
     var underlyingSink = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

     var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
         size = _ref.size,
         _ref$highWaterMark = _ref.highWaterMark,
         highWaterMark = _ref$highWaterMark === undefined ? 1 : _ref$highWaterMark;

     _classCallCheck(this, WritableStream);

     this._state = 'writable';
     this._storedError = undefined;
     this._writer = undefined;
     this._writableStreamController = undefined;
     this._writeRequests = [];
     this._inFlightWriteRequest = undefined;
     this._closeRequest = undefined;
     this._inFlightCloseRequest = undefined;
     this._pendingAbortRequest = undefined;
     this._backpressure = false;
     var type = underlyingSink.type;

     if (type !== undefined) {
       throw new RangeError('Invalid type is specified');
     }

     this._writableStreamController = new WritableStreamDefaultController(this, underlyingSink, size, highWaterMark);

     this._writableStreamController.__startSteps();
   }

   _createClass(WritableStream, [{
     key: 'abort',
     value: function abort(reason) {
       if (IsWritableStream(this) === false) {
         return Promise.reject(streamBrandCheckException('abort'));
       }

       if (IsWritableStreamLocked(this) === true) {
         return Promise.reject(new TypeError('Cannot abort a stream that already has a writer'));
       }

       return WritableStreamAbort(this, reason);
     }
   }, {
     key: 'getWriter',
     value: function getWriter() {
       if (IsWritableStream(this) === false) {
         throw streamBrandCheckException('getWriter');
       }

       return AcquireWritableStreamDefaultWriter(this);
     }
   }, {
     key: 'locked',
     get: function get() {
       if (IsWritableStream(this) === false) {
         throw streamBrandCheckException('locked');
       }

       return IsWritableStreamLocked(this);
     }
   }]);

   return WritableStream;
 }();

 module.exports = {
   AcquireWritableStreamDefaultWriter: AcquireWritableStreamDefaultWriter,
   IsWritableStream: IsWritableStream,
   IsWritableStreamLocked: IsWritableStreamLocked,
   WritableStream: WritableStream,
   WritableStreamAbort: WritableStreamAbort,
   WritableStreamDefaultControllerError: WritableStreamDefaultControllerError,
   WritableStreamDefaultWriterCloseWithErrorPropagation: WritableStreamDefaultWriterCloseWithErrorPropagation,
   WritableStreamDefaultWriterRelease: WritableStreamDefaultWriterRelease,
   WritableStreamDefaultWriterWrite: WritableStreamDefaultWriterWrite,
   WritableStreamCloseQueuedOrInFlight: WritableStreamCloseQueuedOrInFlight
 };

 function AcquireWritableStreamDefaultWriter(stream) {
   return new WritableStreamDefaultWriter(stream);
 }

 function IsWritableStream(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_writableStreamController')) {
     return false;
   }

   return true;
 }

 function IsWritableStreamLocked(stream) {
   assert(IsWritableStream(stream) === true, 'IsWritableStreamLocked should only be used on known writable streams');

   if (stream._writer === undefined) {
     return false;
   }

   return true;
 }

 function WritableStreamAbort(stream, reason) {
   var state = stream._state;

   if (state === 'closed') {
     return Promise.resolve(undefined);
   }

   if (state === 'errored') {
     return Promise.reject(stream._storedError);
   }

   var error = new TypeError('Requested to abort');

   if (stream._pendingAbortRequest !== undefined) {
     return Promise.reject(error);
   }

   assert(state === 'writable' || state === 'erroring', 'state must be writable or erroring');
   var wasAlreadyErroring = false;

   if (state === 'erroring') {
     wasAlreadyErroring = true;
     reason = undefined;
   }

   var promise = new Promise(function (resolve, reject) {
     stream._pendingAbortRequest = {
       _resolve: resolve,
       _reject: reject,
       _reason: reason,
       _wasAlreadyErroring: wasAlreadyErroring
     };
   });

   if (wasAlreadyErroring === false) {
     WritableStreamStartErroring(stream, error);
   }

   return promise;
 }

 function WritableStreamAddWriteRequest(stream) {
   assert(IsWritableStreamLocked(stream) === true);
   assert(stream._state === 'writable');
   var promise = new Promise(function (resolve, reject) {
     var writeRequest = {
       _resolve: resolve,
       _reject: reject
     };

     stream._writeRequests.push(writeRequest);
   });
   return promise;
 }

 function WritableStreamDealWithRejection(stream, error) {
   var state = stream._state;

   if (state === 'writable') {
     WritableStreamStartErroring(stream, error);
     return;
   }

   assert(state === 'erroring');
   WritableStreamFinishErroring(stream);
 }

 function WritableStreamStartErroring(stream, reason) {
   assert(stream._storedError === undefined, 'stream._storedError === undefined');
   assert(stream._state === 'writable', 'state must be writable');
   var controller = stream._writableStreamController;
   assert(controller !== undefined, 'controller must not be undefined');
   stream._state = 'erroring';
   stream._storedError = reason;
   var writer = stream._writer;

   if (writer !== undefined) {
     WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, reason);
   }

   if (WritableStreamHasOperationMarkedInFlight(stream) === false && controller._started === true) {
     WritableStreamFinishErroring(stream);
   }
 }

 function WritableStreamFinishErroring(stream) {
   assert(stream._state === 'erroring', 'stream._state === erroring');
   assert(WritableStreamHasOperationMarkedInFlight(stream) === false, 'WritableStreamHasOperationMarkedInFlight(stream) === false');
   stream._state = 'errored';

   stream._writableStreamController.__errorSteps();

   var storedError = stream._storedError;

   for (var i = 0; i < stream._writeRequests.length; i++) {
     var writeRequest = stream._writeRequests[i];

     writeRequest._reject(storedError);
   }

   stream._writeRequests = [];

   if (stream._pendingAbortRequest === undefined) {
     WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
     return;
   }

   var abortRequest = stream._pendingAbortRequest;
   stream._pendingAbortRequest = undefined;

   if (abortRequest._wasAlreadyErroring === true) {
     abortRequest._reject(storedError);

     WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
     return;
   }

   var promise = stream._writableStreamController.__abortSteps(abortRequest._reason);

   promise.then(function () {
     abortRequest._resolve();

     WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
   }, function (reason) {
     abortRequest._reject(reason);

     WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
   });
 }

 function WritableStreamFinishInFlightWrite(stream) {
   assert(stream._inFlightWriteRequest !== undefined);

   stream._inFlightWriteRequest._resolve(undefined);

   stream._inFlightWriteRequest = undefined;
 }

 function WritableStreamFinishInFlightWriteWithError(stream, error) {
   assert(stream._inFlightWriteRequest !== undefined);

   stream._inFlightWriteRequest._reject(error);

   stream._inFlightWriteRequest = undefined;
   assert(stream._state === 'writable' || stream._state === 'erroring');
   WritableStreamDealWithRejection(stream, error);
 }

 function WritableStreamFinishInFlightClose(stream) {
   assert(stream._inFlightCloseRequest !== undefined);

   stream._inFlightCloseRequest._resolve(undefined);

   stream._inFlightCloseRequest = undefined;
   var state = stream._state;
   assert(state === 'writable' || state === 'erroring');

   if (state === 'erroring') {
     stream._storedError = undefined;

     if (stream._pendingAbortRequest !== undefined) {
       stream._pendingAbortRequest._resolve();

       stream._pendingAbortRequest = undefined;
     }
   }

   stream._state = 'closed';
   var writer = stream._writer;

   if (writer !== undefined) {
     defaultWriterClosedPromiseResolve(writer);
   }

   assert(stream._pendingAbortRequest === undefined, 'stream._pendingAbortRequest === undefined');
   assert(stream._storedError === undefined, 'stream._storedError === undefined');
 }

 function WritableStreamFinishInFlightCloseWithError(stream, error) {
   assert(stream._inFlightCloseRequest !== undefined);

   stream._inFlightCloseRequest._reject(error);

   stream._inFlightCloseRequest = undefined;
   assert(stream._state === 'writable' || stream._state === 'erroring');

   if (stream._pendingAbortRequest !== undefined) {
     stream._pendingAbortRequest._reject(error);

     stream._pendingAbortRequest = undefined;
   }

   WritableStreamDealWithRejection(stream, error);
 }

 function WritableStreamCloseQueuedOrInFlight(stream) {
   if (stream._closeRequest === undefined && stream._inFlightCloseRequest === undefined) {
     return false;
   }

   return true;
 }

 function WritableStreamHasOperationMarkedInFlight(stream) {
   if (stream._inFlightWriteRequest === undefined && stream._inFlightCloseRequest === undefined) {
     return false;
   }

   return true;
 }

 function WritableStreamMarkCloseRequestInFlight(stream) {
   assert(stream._inFlightCloseRequest === undefined);
   assert(stream._closeRequest !== undefined);
   stream._inFlightCloseRequest = stream._closeRequest;
   stream._closeRequest = undefined;
 }

 function WritableStreamMarkFirstWriteRequestInFlight(stream) {
   assert(stream._inFlightWriteRequest === undefined, 'there must be no pending write request');
   assert(stream._writeRequests.length !== 0, 'writeRequests must not be empty');
   stream._inFlightWriteRequest = stream._writeRequests.shift();
 }

 function WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream) {
   assert(stream._state === 'errored', '_stream_.[[state]] is `"errored"`');

   if (stream._closeRequest !== undefined) {
     assert(stream._inFlightCloseRequest === undefined);

     stream._closeRequest._reject(stream._storedError);

     stream._closeRequest = undefined;
   }

   var writer = stream._writer;

   if (writer !== undefined) {
     defaultWriterClosedPromiseReject(writer, stream._storedError);

     writer._closedPromise["catch"](function () {});
   }
 }

 function WritableStreamUpdateBackpressure(stream, backpressure) {
   assert(stream._state === 'writable');
   assert(WritableStreamCloseQueuedOrInFlight(stream) === false);
   var writer = stream._writer;

   if (writer !== undefined && backpressure !== stream._backpressure) {
     if (backpressure === true) {
       defaultWriterReadyPromiseReset(writer);
     } else {
       assert(backpressure === false);
       defaultWriterReadyPromiseResolve(writer);
     }
   }

   stream._backpressure = backpressure;
 }

 var WritableStreamDefaultWriter = function () {
   function WritableStreamDefaultWriter(stream) {
     _classCallCheck(this, WritableStreamDefaultWriter);

     if (IsWritableStream(stream) === false) {
       throw new TypeError('WritableStreamDefaultWriter can only be constructed with a WritableStream instance');
     }

     if (IsWritableStreamLocked(stream) === true) {
       throw new TypeError('This stream has already been locked for exclusive writing by another writer');
     }

     this._ownerWritableStream = stream;
     stream._writer = this;
     var state = stream._state;

     if (state === 'writable') {
       if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._backpressure === true) {
         defaultWriterReadyPromiseInitialize(this);
       } else {
         defaultWriterReadyPromiseInitializeAsResolved(this);
       }

       defaultWriterClosedPromiseInitialize(this);
     } else if (state === 'erroring') {
       defaultWriterReadyPromiseInitializeAsRejected(this, stream._storedError);

       this._readyPromise["catch"](function () {});

       defaultWriterClosedPromiseInitialize(this);
     } else if (state === 'closed') {
       defaultWriterReadyPromiseInitializeAsResolved(this);
       defaultWriterClosedPromiseInitializeAsResolved(this);
     } else {
       assert(state === 'errored', 'state must be errored');
       var storedError = stream._storedError;
       defaultWriterReadyPromiseInitializeAsRejected(this, storedError);

       this._readyPromise["catch"](function () {});

       defaultWriterClosedPromiseInitializeAsRejected(this, storedError);

       this._closedPromise["catch"](function () {});
     }
   }

   _createClass(WritableStreamDefaultWriter, [{
     key: 'abort',
     value: function abort(reason) {
       if (IsWritableStreamDefaultWriter(this) === false) {
         return Promise.reject(defaultWriterBrandCheckException('abort'));
       }

       if (this._ownerWritableStream === undefined) {
         return Promise.reject(defaultWriterLockException('abort'));
       }

       return WritableStreamDefaultWriterAbort(this, reason);
     }
   }, {
     key: 'close',
     value: function close() {
       if (IsWritableStreamDefaultWriter(this) === false) {
         return Promise.reject(defaultWriterBrandCheckException('close'));
       }

       var stream = this._ownerWritableStream;

       if (stream === undefined) {
         return Promise.reject(defaultWriterLockException('close'));
       }

       if (WritableStreamCloseQueuedOrInFlight(stream) === true) {
         return Promise.reject(new TypeError('cannot close an already-closing stream'));
       }

       return WritableStreamDefaultWriterClose(this);
     }
   }, {
     key: 'releaseLock',
     value: function releaseLock() {
       if (IsWritableStreamDefaultWriter(this) === false) {
         throw defaultWriterBrandCheckException('releaseLock');
       }

       var stream = this._ownerWritableStream;

       if (stream === undefined) {
         return;
       }

       assert(stream._writer !== undefined);
       WritableStreamDefaultWriterRelease(this);
     }
   }, {
     key: 'write',
     value: function write(chunk) {
       if (IsWritableStreamDefaultWriter(this) === false) {
         return Promise.reject(defaultWriterBrandCheckException('write'));
       }

       if (this._ownerWritableStream === undefined) {
         return Promise.reject(defaultWriterLockException('write to'));
       }

       return WritableStreamDefaultWriterWrite(this, chunk);
     }
   }, {
     key: 'closed',
     get: function get() {
       if (IsWritableStreamDefaultWriter(this) === false) {
         return Promise.reject(defaultWriterBrandCheckException('closed'));
       }

       return this._closedPromise;
     }
   }, {
     key: 'desiredSize',
     get: function get() {
       if (IsWritableStreamDefaultWriter(this) === false) {
         throw defaultWriterBrandCheckException('desiredSize');
       }

       if (this._ownerWritableStream === undefined) {
         throw defaultWriterLockException('desiredSize');
       }

       return WritableStreamDefaultWriterGetDesiredSize(this);
     }
   }, {
     key: 'ready',
     get: function get() {
       if (IsWritableStreamDefaultWriter(this) === false) {
         return Promise.reject(defaultWriterBrandCheckException('ready'));
       }

       return this._readyPromise;
     }
   }]);

   return WritableStreamDefaultWriter;
 }();

 function IsWritableStreamDefaultWriter(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_ownerWritableStream')) {
     return false;
   }

   return true;
 }

 function WritableStreamDefaultWriterAbort(writer, reason) {
   var stream = writer._ownerWritableStream;
   assert(stream !== undefined);
   return WritableStreamAbort(stream, reason);
 }

 function WritableStreamDefaultWriterClose(writer) {
   var stream = writer._ownerWritableStream;
   assert(stream !== undefined);
   var state = stream._state;

   if (state === 'closed' || state === 'errored') {
     return Promise.reject(new TypeError('The stream (in ' + state + ' state) is not in the writable state and cannot be closed'));
   }

   assert(state === 'writable' || state === 'erroring');
   assert(WritableStreamCloseQueuedOrInFlight(stream) === false);
   var promise = new Promise(function (resolve, reject) {
     var closeRequest = {
       _resolve: resolve,
       _reject: reject
     };
     stream._closeRequest = closeRequest;
   });

   if (stream._backpressure === true && state === 'writable') {
     defaultWriterReadyPromiseResolve(writer);
   }

   WritableStreamDefaultControllerClose(stream._writableStreamController);
   return promise;
 }

 function WritableStreamDefaultWriterCloseWithErrorPropagation(writer) {
   var stream = writer._ownerWritableStream;
   assert(stream !== undefined);
   var state = stream._state;

   if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {
     return Promise.resolve();
   }

   if (state === 'errored') {
     return Promise.reject(stream._storedError);
   }

   assert(state === 'writable' || state === 'erroring');
   return WritableStreamDefaultWriterClose(writer);
 }

 function WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, error) {
   if (writer._closedPromiseState === 'pending') {
     defaultWriterClosedPromiseReject(writer, error);
   } else {
     defaultWriterClosedPromiseResetToRejected(writer, error);
   }

   writer._closedPromise["catch"](function () {});
 }

 function WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, error) {
   if (writer._readyPromiseState === 'pending') {
     defaultWriterReadyPromiseReject(writer, error);
   } else {
     defaultWriterReadyPromiseResetToRejected(writer, error);
   }

   writer._readyPromise["catch"](function () {});
 }

 function WritableStreamDefaultWriterGetDesiredSize(writer) {
   var stream = writer._ownerWritableStream;
   var state = stream._state;

   if (state === 'errored' || state === 'erroring') {
     return null;
   }

   if (state === 'closed') {
     return 0;
   }

   return WritableStreamDefaultControllerGetDesiredSize(stream._writableStreamController);
 }

 function WritableStreamDefaultWriterRelease(writer) {
   var stream = writer._ownerWritableStream;
   assert(stream !== undefined);
   assert(stream._writer === writer);
   var releasedError = new TypeError('Writer was released and can no longer be used to monitor the stream\'s closedness');
   WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, releasedError);
   WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, releasedError);
   stream._writer = undefined;
   writer._ownerWritableStream = undefined;
 }

 function WritableStreamDefaultWriterWrite(writer, chunk) {
   var stream = writer._ownerWritableStream;
   assert(stream !== undefined);
   var controller = stream._writableStreamController;
   var chunkSize = WritableStreamDefaultControllerGetChunkSize(controller, chunk);

   if (stream !== writer._ownerWritableStream) {
     return Promise.reject(defaultWriterLockException('write to'));
   }

   var state = stream._state;

   if (state === 'errored') {
     return Promise.reject(stream._storedError);
   }

   if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {
     return Promise.reject(new TypeError('The stream is closing or closed and cannot be written to'));
   }

   if (state === 'erroring') {
     return Promise.reject(stream._storedError);
   }

   assert(state === 'writable');
   var promise = WritableStreamAddWriteRequest(stream);
   WritableStreamDefaultControllerWrite(controller, chunk, chunkSize);
   return promise;
 }

 var WritableStreamDefaultController = function () {
   function WritableStreamDefaultController(stream, underlyingSink, size, highWaterMark) {
     _classCallCheck(this, WritableStreamDefaultController);

     if (IsWritableStream(stream) === false) {
       throw new TypeError('WritableStreamDefaultController can only be constructed with a WritableStream instance');
     }

     if (stream._writableStreamController !== undefined) {
       throw new TypeError('WritableStreamDefaultController instances can only be created by the WritableStream constructor');
     }

     this._controlledWritableStream = stream;
     this._underlyingSink = underlyingSink;
     this._queue = undefined;
     this._queueTotalSize = undefined;
     ResetQueue(this);
     this._started = false;
     var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);
     this._strategySize = normalizedStrategy.size;
     this._strategyHWM = normalizedStrategy.highWaterMark;
     var backpressure = WritableStreamDefaultControllerGetBackpressure(this);
     WritableStreamUpdateBackpressure(stream, backpressure);
   }

   _createClass(WritableStreamDefaultController, [{
     key: 'error',
     value: function error(e) {
       if (IsWritableStreamDefaultController(this) === false) {
         throw new TypeError('WritableStreamDefaultController.prototype.error can only be used on a WritableStreamDefaultController');
       }

       var state = this._controlledWritableStream._state;

       if (state !== 'writable') {
         return;
       }

       WritableStreamDefaultControllerError(this, e);
     }
   }, {
     key: '__abortSteps',
     value: function __abortSteps(reason) {
       return PromiseInvokeOrNoop(this._underlyingSink, 'abort', [reason]);
     }
   }, {
     key: '__errorSteps',
     value: function __errorSteps() {
       ResetQueue(this);
     }
   }, {
     key: '__startSteps',
     value: function __startSteps() {
       var _this = this;

       var startResult = InvokeOrNoop(this._underlyingSink, 'start', [this]);
       var stream = this._controlledWritableStream;
       Promise.resolve(startResult).then(function () {
         assert(stream._state === 'writable' || stream._state === 'erroring');
         _this._started = true;
         WritableStreamDefaultControllerAdvanceQueueIfNeeded(_this);
       }, function (r) {
         assert(stream._state === 'writable' || stream._state === 'erroring');
         _this._started = true;
         WritableStreamDealWithRejection(stream, r);
       })["catch"](rethrowAssertionErrorRejection);
     }
   }]);

   return WritableStreamDefaultController;
 }();

 function WritableStreamDefaultControllerClose(controller) {
   EnqueueValueWithSize(controller, 'close', 0);
   WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
 }

 function WritableStreamDefaultControllerGetChunkSize(controller, chunk) {
   var strategySize = controller._strategySize;

   if (strategySize === undefined) {
     return 1;
   }

   try {
     return strategySize(chunk);
   } catch (chunkSizeE) {
     WritableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);
     return 1;
   }
 }

 function WritableStreamDefaultControllerGetDesiredSize(controller) {
   return controller._strategyHWM - controller._queueTotalSize;
 }

 function WritableStreamDefaultControllerWrite(controller, chunk, chunkSize) {
   var writeRecord = {
     chunk: chunk
   };

   try {
     EnqueueValueWithSize(controller, writeRecord, chunkSize);
   } catch (enqueueE) {
     WritableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);
     return;
   }

   var stream = controller._controlledWritableStream;

   if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._state === 'writable') {
     var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);
     WritableStreamUpdateBackpressure(stream, backpressure);
   }

   WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
 }

 function IsWritableStreamDefaultController(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSink')) {
     return false;
   }

   return true;
 }

 function WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller) {
   var stream = controller._controlledWritableStream;

   if (controller._started === false) {
     return;
   }

   if (stream._inFlightWriteRequest !== undefined) {
     return;
   }

   var state = stream._state;

   if (state === 'closed' || state === 'errored') {
     return;
   }

   if (state === 'erroring') {
     WritableStreamFinishErroring(stream);
     return;
   }

   if (controller._queue.length === 0) {
     return;
   }

   var writeRecord = PeekQueueValue(controller);

   if (writeRecord === 'close') {
     WritableStreamDefaultControllerProcessClose(controller);
   } else {
     WritableStreamDefaultControllerProcessWrite(controller, writeRecord.chunk);
   }
 }

 function WritableStreamDefaultControllerErrorIfNeeded(controller, error) {
   if (controller._controlledWritableStream._state === 'writable') {
     WritableStreamDefaultControllerError(controller, error);
   }
 }

 function WritableStreamDefaultControllerProcessClose(controller) {
   var stream = controller._controlledWritableStream;
   WritableStreamMarkCloseRequestInFlight(stream);
   DequeueValue(controller);
   assert(controller._queue.length === 0, 'queue must be empty once the final write record is dequeued');
   var sinkClosePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'close', []);
   sinkClosePromise.then(function () {
     WritableStreamFinishInFlightClose(stream);
   }, function (reason) {
     WritableStreamFinishInFlightCloseWithError(stream, reason);
   })["catch"](rethrowAssertionErrorRejection);
 }

 function WritableStreamDefaultControllerProcessWrite(controller, chunk) {
   var stream = controller._controlledWritableStream;
   WritableStreamMarkFirstWriteRequestInFlight(stream);
   var sinkWritePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'write', [chunk, controller]);
   sinkWritePromise.then(function () {
     WritableStreamFinishInFlightWrite(stream);
     var state = stream._state;
     assert(state === 'writable' || state === 'erroring');
     DequeueValue(controller);

     if (WritableStreamCloseQueuedOrInFlight(stream) === false && state === 'writable') {
       var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);
       WritableStreamUpdateBackpressure(stream, backpressure);
     }

     WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
   }, function (reason) {
     WritableStreamFinishInFlightWriteWithError(stream, reason);
   })["catch"](rethrowAssertionErrorRejection);
 }

 function WritableStreamDefaultControllerGetBackpressure(controller) {
   var desiredSize = WritableStreamDefaultControllerGetDesiredSize(controller);
   return desiredSize <= 0;
 }

 function WritableStreamDefaultControllerError(controller, error) {
   var stream = controller._controlledWritableStream;
   assert(stream._state === 'writable');
   WritableStreamStartErroring(stream, error);
 }

 function streamBrandCheckException(name) {
   return new TypeError('WritableStream.prototype.' + name + ' can only be used on a WritableStream');
 }

 function defaultWriterBrandCheckException(name) {
   return new TypeError('WritableStreamDefaultWriter.prototype.' + name + ' can only be used on a WritableStreamDefaultWriter');
 }

 function defaultWriterLockException(name) {
   return new TypeError('Cannot ' + name + ' a stream using a released writer');
 }

 function defaultWriterClosedPromiseInitialize(writer) {
   writer._closedPromise = new Promise(function (resolve, reject) {
     writer._closedPromise_resolve = resolve;
     writer._closedPromise_reject = reject;
     writer._closedPromiseState = 'pending';
   });
 }

 function defaultWriterClosedPromiseInitializeAsRejected(writer, reason) {
   writer._closedPromise = Promise.reject(reason);
   writer._closedPromise_resolve = undefined;
   writer._closedPromise_reject = undefined;
   writer._closedPromiseState = 'rejected';
 }

 function defaultWriterClosedPromiseInitializeAsResolved(writer) {
   writer._closedPromise = Promise.resolve(undefined);
   writer._closedPromise_resolve = undefined;
   writer._closedPromise_reject = undefined;
   writer._closedPromiseState = 'resolved';
 }

 function defaultWriterClosedPromiseReject(writer, reason) {
   assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');
   assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');
   assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');

   writer._closedPromise_reject(reason);

   writer._closedPromise_resolve = undefined;
   writer._closedPromise_reject = undefined;
   writer._closedPromiseState = 'rejected';
 }

 function defaultWriterClosedPromiseResetToRejected(writer, reason) {
   assert(writer._closedPromise_resolve === undefined, 'writer._closedPromise_resolve === undefined');
   assert(writer._closedPromise_reject === undefined, 'writer._closedPromise_reject === undefined');
   assert(writer._closedPromiseState !== 'pending', 'writer._closedPromiseState is not pending');
   writer._closedPromise = Promise.reject(reason);
   writer._closedPromiseState = 'rejected';
 }

 function defaultWriterClosedPromiseResolve(writer) {
   assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');
   assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');
   assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');

   writer._closedPromise_resolve(undefined);

   writer._closedPromise_resolve = undefined;
   writer._closedPromise_reject = undefined;
   writer._closedPromiseState = 'resolved';
 }

 function defaultWriterReadyPromiseInitialize(writer) {
   writer._readyPromise = new Promise(function (resolve, reject) {
     writer._readyPromise_resolve = resolve;
     writer._readyPromise_reject = reject;
   });
   writer._readyPromiseState = 'pending';
 }

 function defaultWriterReadyPromiseInitializeAsRejected(writer, reason) {
   writer._readyPromise = Promise.reject(reason);
   writer._readyPromise_resolve = undefined;
   writer._readyPromise_reject = undefined;
   writer._readyPromiseState = 'rejected';
 }

 function defaultWriterReadyPromiseInitializeAsResolved(writer) {
   writer._readyPromise = Promise.resolve(undefined);
   writer._readyPromise_resolve = undefined;
   writer._readyPromise_reject = undefined;
   writer._readyPromiseState = 'fulfilled';
 }

 function defaultWriterReadyPromiseReject(writer, reason) {
   assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');
   assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');

   writer._readyPromise_reject(reason);

   writer._readyPromise_resolve = undefined;
   writer._readyPromise_reject = undefined;
   writer._readyPromiseState = 'rejected';
 }

 function defaultWriterReadyPromiseReset(writer) {
   assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');
   assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');
   writer._readyPromise = new Promise(function (resolve, reject) {
     writer._readyPromise_resolve = resolve;
     writer._readyPromise_reject = reject;
   });
   writer._readyPromiseState = 'pending';
 }

 function defaultWriterReadyPromiseResetToRejected(writer, reason) {
   assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');
   assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');
   writer._readyPromise = Promise.reject(reason);
   writer._readyPromiseState = 'rejected';
 }

 function defaultWriterReadyPromiseResolve(writer) {
   assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');
   assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');

   writer._readyPromise_resolve(undefined);

   writer._readyPromise_resolve = undefined;
   writer._readyPromise_reject = undefined;
   writer._readyPromiseState = 'fulfilled';
 }
}, function (module, exports, __w_pdfjs_require__) {
 "use strict";

 var _require = __w_pdfjs_require__(0),
     IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber;

 var _require2 = __w_pdfjs_require__(1),
     assert = _require2.assert;

 exports.DequeueValue = function (container) {
   assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: DequeueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');
   assert(container._queue.length > 0, 'Spec-level failure: should never dequeue from an empty queue.');

   var pair = container._queue.shift();

   container._queueTotalSize -= pair.size;

   if (container._queueTotalSize < 0) {
     container._queueTotalSize = 0;
   }

   return pair.value;
 };

 exports.EnqueueValueWithSize = function (container, value, size) {
   assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: EnqueueValueWithSize should only be used on containers with [[queue]] and ' + '[[queueTotalSize]].');
   size = Number(size);

   if (!IsFiniteNonNegativeNumber(size)) {
     throw new RangeError('Size must be a finite, non-NaN, non-negative number.');
   }

   container._queue.push({
     value: value,
     size: size
   });

   container._queueTotalSize += size;
 };

 exports.PeekQueueValue = function (container) {
   assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: PeekQueueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');
   assert(container._queue.length > 0, 'Spec-level failure: should never peek at an empty queue.');
   var pair = container._queue[0];
   return pair.value;
 };

 exports.ResetQueue = function (container) {
   assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: ResetQueue should only be used on containers with [[queue]] and [[queueTotalSize]].');
   container._queue = [];
   container._queueTotalSize = 0;
 };
}, function (module, exports, __w_pdfjs_require__) {
 "use strict";

 var _createClass = function () {
   function defineProperties(target, props) {
     for (var i = 0; i < props.length; i++) {
       var descriptor = props[i];
       descriptor.enumerable = descriptor.enumerable || false;
       descriptor.configurable = true;
       if ("value" in descriptor) descriptor.writable = true;
       Object.defineProperty(target, descriptor.key, descriptor);
     }
   }

   return function (Constructor, protoProps, staticProps) {
     if (protoProps) defineProperties(Constructor.prototype, protoProps);
     if (staticProps) defineProperties(Constructor, staticProps);
     return Constructor;
   };
 }();

 function _classCallCheck(instance, Constructor) {
   if (!(instance instanceof Constructor)) {
     throw new TypeError("Cannot call a class as a function");
   }
 }

 var _require = __w_pdfjs_require__(0),
     ArrayBufferCopy = _require.ArrayBufferCopy,
     CreateIterResultObject = _require.CreateIterResultObject,
     IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber,
     InvokeOrNoop = _require.InvokeOrNoop,
     PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,
     TransferArrayBuffer = _require.TransferArrayBuffer,
     ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,
     ValidateAndNormalizeHighWaterMark = _require.ValidateAndNormalizeHighWaterMark;

 var _require2 = __w_pdfjs_require__(0),
     createArrayFromList = _require2.createArrayFromList,
     createDataProperty = _require2.createDataProperty,
     typeIsObject = _require2.typeIsObject;

 var _require3 = __w_pdfjs_require__(1),
     assert = _require3.assert,
     rethrowAssertionErrorRejection = _require3.rethrowAssertionErrorRejection;

 var _require4 = __w_pdfjs_require__(3),
     DequeueValue = _require4.DequeueValue,
     EnqueueValueWithSize = _require4.EnqueueValueWithSize,
     ResetQueue = _require4.ResetQueue;

 var _require5 = __w_pdfjs_require__(2),
     AcquireWritableStreamDefaultWriter = _require5.AcquireWritableStreamDefaultWriter,
     IsWritableStream = _require5.IsWritableStream,
     IsWritableStreamLocked = _require5.IsWritableStreamLocked,
     WritableStreamAbort = _require5.WritableStreamAbort,
     WritableStreamDefaultWriterCloseWithErrorPropagation = _require5.WritableStreamDefaultWriterCloseWithErrorPropagation,
     WritableStreamDefaultWriterRelease = _require5.WritableStreamDefaultWriterRelease,
     WritableStreamDefaultWriterWrite = _require5.WritableStreamDefaultWriterWrite,
     WritableStreamCloseQueuedOrInFlight = _require5.WritableStreamCloseQueuedOrInFlight;

 var ReadableStream = function () {
   function ReadableStream() {
     var underlyingSource = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

     var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
         size = _ref.size,
         highWaterMark = _ref.highWaterMark;

     _classCallCheck(this, ReadableStream);

     this._state = 'readable';
     this._reader = undefined;
     this._storedError = undefined;
     this._disturbed = false;
     this._readableStreamController = undefined;
     var type = underlyingSource.type;
     var typeString = String(type);

     if (typeString === 'bytes') {
       if (highWaterMark === undefined) {
         highWaterMark = 0;
       }

       this._readableStreamController = new ReadableByteStreamController(this, underlyingSource, highWaterMark);
     } else if (type === undefined) {
       if (highWaterMark === undefined) {
         highWaterMark = 1;
       }

       this._readableStreamController = new ReadableStreamDefaultController(this, underlyingSource, size, highWaterMark);
     } else {
       throw new RangeError('Invalid type is specified');
     }
   }

   _createClass(ReadableStream, [{
     key: 'cancel',
     value: function cancel(reason) {
       if (IsReadableStream(this) === false) {
         return Promise.reject(streamBrandCheckException('cancel'));
       }

       if (IsReadableStreamLocked(this) === true) {
         return Promise.reject(new TypeError('Cannot cancel a stream that already has a reader'));
       }

       return ReadableStreamCancel(this, reason);
     }
   }, {
     key: 'getReader',
     value: function getReader() {
       var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
           mode = _ref2.mode;

       if (IsReadableStream(this) === false) {
         throw streamBrandCheckException('getReader');
       }

       if (mode === undefined) {
         return AcquireReadableStreamDefaultReader(this);
       }

       mode = String(mode);

       if (mode === 'byob') {
         return AcquireReadableStreamBYOBReader(this);
       }

       throw new RangeError('Invalid mode is specified');
     }
   }, {
     key: 'pipeThrough',
     value: function pipeThrough(_ref3, options) {
       var writable = _ref3.writable,
           readable = _ref3.readable;
       var promise = this.pipeTo(writable, options);
       ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise);
       return readable;
     }
   }, {
     key: 'pipeTo',
     value: function pipeTo(dest) {
       var _this = this;

       var _ref4 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
           preventClose = _ref4.preventClose,
           preventAbort = _ref4.preventAbort,
           preventCancel = _ref4.preventCancel;

       if (IsReadableStream(this) === false) {
         return Promise.reject(streamBrandCheckException('pipeTo'));
       }

       if (IsWritableStream(dest) === false) {
         return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo\'s first argument must be a WritableStream'));
       }

       preventClose = Boolean(preventClose);
       preventAbort = Boolean(preventAbort);
       preventCancel = Boolean(preventCancel);

       if (IsReadableStreamLocked(this) === true) {
         return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked ReadableStream'));
       }

       if (IsWritableStreamLocked(dest) === true) {
         return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked WritableStream'));
       }

       var reader = AcquireReadableStreamDefaultReader(this);
       var writer = AcquireWritableStreamDefaultWriter(dest);
       var shuttingDown = false;
       var currentWrite = Promise.resolve();
       return new Promise(function (resolve, reject) {
         function pipeLoop() {
           currentWrite = Promise.resolve();

           if (shuttingDown === true) {
             return Promise.resolve();
           }

           return writer._readyPromise.then(function () {
             return ReadableStreamDefaultReaderRead(reader).then(function (_ref5) {
               var value = _ref5.value,
                   done = _ref5.done;

               if (done === true) {
                 return;
               }

               currentWrite = WritableStreamDefaultWriterWrite(writer, value)["catch"](function () {});
             });
           }).then(pipeLoop);
         }

         isOrBecomesErrored(_this, reader._closedPromise, function (storedError) {
           if (preventAbort === false) {
             shutdownWithAction(function () {
               return WritableStreamAbort(dest, storedError);
             }, true, storedError);
           } else {
             shutdown(true, storedError);
           }
         });
         isOrBecomesErrored(dest, writer._closedPromise, function (storedError) {
           if (preventCancel === false) {
             shutdownWithAction(function () {
               return ReadableStreamCancel(_this, storedError);
             }, true, storedError);
           } else {
             shutdown(true, storedError);
           }
         });
         isOrBecomesClosed(_this, reader._closedPromise, function () {
           if (preventClose === false) {
             shutdownWithAction(function () {
               return WritableStreamDefaultWriterCloseWithErrorPropagation(writer);
             });
           } else {
             shutdown();
           }
         });

         if (WritableStreamCloseQueuedOrInFlight(dest) === true || dest._state === 'closed') {
           var destClosed = new TypeError('the destination writable stream closed before all data could be piped to it');

           if (preventCancel === false) {
             shutdownWithAction(function () {
               return ReadableStreamCancel(_this, destClosed);
             }, true, destClosed);
           } else {
             shutdown(true, destClosed);
           }
         }

         pipeLoop()["catch"](function (err) {
           currentWrite = Promise.resolve();
           rethrowAssertionErrorRejection(err);
         });

         function waitForWritesToFinish() {
           var oldCurrentWrite = currentWrite;
           return currentWrite.then(function () {
             return oldCurrentWrite !== currentWrite ? waitForWritesToFinish() : undefined;
           });
         }

         function isOrBecomesErrored(stream, promise, action) {
           if (stream._state === 'errored') {
             action(stream._storedError);
           } else {
             promise["catch"](action)["catch"](rethrowAssertionErrorRejection);
           }
         }

         function isOrBecomesClosed(stream, promise, action) {
           if (stream._state === 'closed') {
             action();
           } else {
             promise.then(action)["catch"](rethrowAssertionErrorRejection);
           }
         }

         function shutdownWithAction(action, originalIsError, originalError) {
           if (shuttingDown === true) {
             return;
           }

           shuttingDown = true;

           if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {
             waitForWritesToFinish().then(doTheRest);
           } else {
             doTheRest();
           }

           function doTheRest() {
             action().then(function () {
               return finalize(originalIsError, originalError);
             }, function (newError) {
               return finalize(true, newError);
             })["catch"](rethrowAssertionErrorRejection);
           }
         }

         function shutdown(isError, error) {
           if (shuttingDown === true) {
             return;
           }

           shuttingDown = true;

           if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {
             waitForWritesToFinish().then(function () {
               return finalize(isError, error);
             })["catch"](rethrowAssertionErrorRejection);
           } else {
             finalize(isError, error);
           }
         }

         function finalize(isError, error) {
           WritableStreamDefaultWriterRelease(writer);
           ReadableStreamReaderGenericRelease(reader);

           if (isError) {
             reject(error);
           } else {
             resolve(undefined);
           }
         }
       });
     }
   }, {
     key: 'tee',
     value: function tee() {
       if (IsReadableStream(this) === false) {
         throw streamBrandCheckException('tee');
       }

       var branches = ReadableStreamTee(this, false);
       return createArrayFromList(branches);
     }
   }, {
     key: 'locked',
     get: function get() {
       if (IsReadableStream(this) === false) {
         throw streamBrandCheckException('locked');
       }

       return IsReadableStreamLocked(this);
     }
   }]);

   return ReadableStream;
 }();

 module.exports = {
   ReadableStream: ReadableStream,
   IsReadableStreamDisturbed: IsReadableStreamDisturbed,
   ReadableStreamDefaultControllerClose: ReadableStreamDefaultControllerClose,
   ReadableStreamDefaultControllerEnqueue: ReadableStreamDefaultControllerEnqueue,
   ReadableStreamDefaultControllerError: ReadableStreamDefaultControllerError,
   ReadableStreamDefaultControllerGetDesiredSize: ReadableStreamDefaultControllerGetDesiredSize
 };

 function AcquireReadableStreamBYOBReader(stream) {
   return new ReadableStreamBYOBReader(stream);
 }

 function AcquireReadableStreamDefaultReader(stream) {
   return new ReadableStreamDefaultReader(stream);
 }

 function IsReadableStream(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_readableStreamController')) {
     return false;
   }

   return true;
 }

 function IsReadableStreamDisturbed(stream) {
   assert(IsReadableStream(stream) === true, 'IsReadableStreamDisturbed should only be used on known readable streams');
   return stream._disturbed;
 }

 function IsReadableStreamLocked(stream) {
   assert(IsReadableStream(stream) === true, 'IsReadableStreamLocked should only be used on known readable streams');

   if (stream._reader === undefined) {
     return false;
   }

   return true;
 }

 function ReadableStreamTee(stream, cloneForBranch2) {
   assert(IsReadableStream(stream) === true);
   assert(typeof cloneForBranch2 === 'boolean');
   var reader = AcquireReadableStreamDefaultReader(stream);
   var teeState = {
     closedOrErrored: false,
     canceled1: false,
     canceled2: false,
     reason1: undefined,
     reason2: undefined
   };
   teeState.promise = new Promise(function (resolve) {
     teeState._resolve = resolve;
   });
   var pull = create_ReadableStreamTeePullFunction();
   pull._reader = reader;
   pull._teeState = teeState;
   pull._cloneForBranch2 = cloneForBranch2;
   var cancel1 = create_ReadableStreamTeeBranch1CancelFunction();
   cancel1._stream = stream;
   cancel1._teeState = teeState;
   var cancel2 = create_ReadableStreamTeeBranch2CancelFunction();
   cancel2._stream = stream;
   cancel2._teeState = teeState;
   var underlyingSource1 = Object.create(Object.prototype);
   createDataProperty(underlyingSource1, 'pull', pull);
   createDataProperty(underlyingSource1, 'cancel', cancel1);
   var branch1Stream = new ReadableStream(underlyingSource1);
   var underlyingSource2 = Object.create(Object.prototype);
   createDataProperty(underlyingSource2, 'pull', pull);
   createDataProperty(underlyingSource2, 'cancel', cancel2);
   var branch2Stream = new ReadableStream(underlyingSource2);
   pull._branch1 = branch1Stream._readableStreamController;
   pull._branch2 = branch2Stream._readableStreamController;

   reader._closedPromise["catch"](function (r) {
     if (teeState.closedOrErrored === true) {
       return;
     }

     ReadableStreamDefaultControllerError(pull._branch1, r);
     ReadableStreamDefaultControllerError(pull._branch2, r);
     teeState.closedOrErrored = true;
   });

   return [branch1Stream, branch2Stream];
 }

 function create_ReadableStreamTeePullFunction() {
   function f() {
     var reader = f._reader,
         branch1 = f._branch1,
         branch2 = f._branch2,
         teeState = f._teeState;
     return ReadableStreamDefaultReaderRead(reader).then(function (result) {
       assert(typeIsObject(result));
       var value = result.value;
       var done = result.done;
       assert(typeof done === 'boolean');

       if (done === true && teeState.closedOrErrored === false) {
         if (teeState.canceled1 === false) {
           ReadableStreamDefaultControllerClose(branch1);
         }

         if (teeState.canceled2 === false) {
           ReadableStreamDefaultControllerClose(branch2);
         }

         teeState.closedOrErrored = true;
       }

       if (teeState.closedOrErrored === true) {
         return;
       }

       var value1 = value;
       var value2 = value;

       if (teeState.canceled1 === false) {
         ReadableStreamDefaultControllerEnqueue(branch1, value1);
       }

       if (teeState.canceled2 === false) {
         ReadableStreamDefaultControllerEnqueue(branch2, value2);
       }
     });
   }

   return f;
 }

 function create_ReadableStreamTeeBranch1CancelFunction() {
   function f(reason) {
     var stream = f._stream,
         teeState = f._teeState;
     teeState.canceled1 = true;
     teeState.reason1 = reason;

     if (teeState.canceled2 === true) {
       var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);
       var cancelResult = ReadableStreamCancel(stream, compositeReason);

       teeState._resolve(cancelResult);
     }

     return teeState.promise;
   }

   return f;
 }

 function create_ReadableStreamTeeBranch2CancelFunction() {
   function f(reason) {
     var stream = f._stream,
         teeState = f._teeState;
     teeState.canceled2 = true;
     teeState.reason2 = reason;

     if (teeState.canceled1 === true) {
       var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);
       var cancelResult = ReadableStreamCancel(stream, compositeReason);

       teeState._resolve(cancelResult);
     }

     return teeState.promise;
   }

   return f;
 }

 function ReadableStreamAddReadIntoRequest(stream) {
   assert(IsReadableStreamBYOBReader(stream._reader) === true);
   assert(stream._state === 'readable' || stream._state === 'closed');
   var promise = new Promise(function (resolve, reject) {
     var readIntoRequest = {
       _resolve: resolve,
       _reject: reject
     };

     stream._reader._readIntoRequests.push(readIntoRequest);
   });
   return promise;
 }

 function ReadableStreamAddReadRequest(stream) {
   assert(IsReadableStreamDefaultReader(stream._reader) === true);
   assert(stream._state === 'readable');
   var promise = new Promise(function (resolve, reject) {
     var readRequest = {
       _resolve: resolve,
       _reject: reject
     };

     stream._reader._readRequests.push(readRequest);
   });
   return promise;
 }

 function ReadableStreamCancel(stream, reason) {
   stream._disturbed = true;

   if (stream._state === 'closed') {
     return Promise.resolve(undefined);
   }

   if (stream._state === 'errored') {
     return Promise.reject(stream._storedError);
   }

   ReadableStreamClose(stream);

   var sourceCancelPromise = stream._readableStreamController.__cancelSteps(reason);

   return sourceCancelPromise.then(function () {
     return undefined;
   });
 }

 function ReadableStreamClose(stream) {
   assert(stream._state === 'readable');
   stream._state = 'closed';
   var reader = stream._reader;

   if (reader === undefined) {
     return undefined;
   }

   if (IsReadableStreamDefaultReader(reader) === true) {
     for (var i = 0; i < reader._readRequests.length; i++) {
       var _resolve = reader._readRequests[i]._resolve;

       _resolve(CreateIterResultObject(undefined, true));
     }

     reader._readRequests = [];
   }

   defaultReaderClosedPromiseResolve(reader);
   return undefined;
 }

 function ReadableStreamError(stream, e) {
   assert(IsReadableStream(stream) === true, 'stream must be ReadableStream');
   assert(stream._state === 'readable', 'state must be readable');
   stream._state = 'errored';
   stream._storedError = e;
   var reader = stream._reader;

   if (reader === undefined) {
     return undefined;
   }

   if (IsReadableStreamDefaultReader(reader) === true) {
     for (var i = 0; i < reader._readRequests.length; i++) {
       var readRequest = reader._readRequests[i];

       readRequest._reject(e);
     }

     reader._readRequests = [];
   } else {
     assert(IsReadableStreamBYOBReader(reader), 'reader must be ReadableStreamBYOBReader');

     for (var _i = 0; _i < reader._readIntoRequests.length; _i++) {
       var readIntoRequest = reader._readIntoRequests[_i];

       readIntoRequest._reject(e);
     }

     reader._readIntoRequests = [];
   }

   defaultReaderClosedPromiseReject(reader, e);

   reader._closedPromise["catch"](function () {});
 }

 function ReadableStreamFulfillReadIntoRequest(stream, chunk, done) {
   var reader = stream._reader;
   assert(reader._readIntoRequests.length > 0);

   var readIntoRequest = reader._readIntoRequests.shift();

   readIntoRequest._resolve(CreateIterResultObject(chunk, done));
 }

 function ReadableStreamFulfillReadRequest(stream, chunk, done) {
   var reader = stream._reader;
   assert(reader._readRequests.length > 0);

   var readRequest = reader._readRequests.shift();

   readRequest._resolve(CreateIterResultObject(chunk, done));
 }

 function ReadableStreamGetNumReadIntoRequests(stream) {
   return stream._reader._readIntoRequests.length;
 }

 function ReadableStreamGetNumReadRequests(stream) {
   return stream._reader._readRequests.length;
 }

 function ReadableStreamHasBYOBReader(stream) {
   var reader = stream._reader;

   if (reader === undefined) {
     return false;
   }

   if (IsReadableStreamBYOBReader(reader) === false) {
     return false;
   }

   return true;
 }

 function ReadableStreamHasDefaultReader(stream) {
   var reader = stream._reader;

   if (reader === undefined) {
     return false;
   }

   if (IsReadableStreamDefaultReader(reader) === false) {
     return false;
   }

   return true;
 }

 var ReadableStreamDefaultReader = function () {
   function ReadableStreamDefaultReader(stream) {
     _classCallCheck(this, ReadableStreamDefaultReader);

     if (IsReadableStream(stream) === false) {
       throw new TypeError('ReadableStreamDefaultReader can only be constructed with a ReadableStream instance');
     }

     if (IsReadableStreamLocked(stream) === true) {
       throw new TypeError('This stream has already been locked for exclusive reading by another reader');
     }

     ReadableStreamReaderGenericInitialize(this, stream);
     this._readRequests = [];
   }

   _createClass(ReadableStreamDefaultReader, [{
     key: 'cancel',
     value: function cancel(reason) {
       if (IsReadableStreamDefaultReader(this) === false) {
         return Promise.reject(defaultReaderBrandCheckException('cancel'));
       }

       if (this._ownerReadableStream === undefined) {
         return Promise.reject(readerLockException('cancel'));
       }

       return ReadableStreamReaderGenericCancel(this, reason);
     }
   }, {
     key: 'read',
     value: function read() {
       if (IsReadableStreamDefaultReader(this) === false) {
         return Promise.reject(defaultReaderBrandCheckException('read'));
       }

       if (this._ownerReadableStream === undefined) {
         return Promise.reject(readerLockException('read from'));
       }

       return ReadableStreamDefaultReaderRead(this);
     }
   }, {
     key: 'releaseLock',
     value: function releaseLock() {
       if (IsReadableStreamDefaultReader(this) === false) {
         throw defaultReaderBrandCheckException('releaseLock');
       }

       if (this._ownerReadableStream === undefined) {
         return;
       }

       if (this._readRequests.length > 0) {
         throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');
       }

       ReadableStreamReaderGenericRelease(this);
     }
   }, {
     key: 'closed',
     get: function get() {
       if (IsReadableStreamDefaultReader(this) === false) {
         return Promise.reject(defaultReaderBrandCheckException('closed'));
       }

       return this._closedPromise;
     }
   }]);

   return ReadableStreamDefaultReader;
 }();

 var ReadableStreamBYOBReader = function () {
   function ReadableStreamBYOBReader(stream) {
     _classCallCheck(this, ReadableStreamBYOBReader);

     if (!IsReadableStream(stream)) {
       throw new TypeError('ReadableStreamBYOBReader can only be constructed with a ReadableStream instance given a ' + 'byte source');
     }

     if (IsReadableByteStreamController(stream._readableStreamController) === false) {
       throw new TypeError('Cannot construct a ReadableStreamBYOBReader for a stream not constructed with a byte ' + 'source');
     }

     if (IsReadableStreamLocked(stream)) {
       throw new TypeError('This stream has already been locked for exclusive reading by another reader');
     }

     ReadableStreamReaderGenericInitialize(this, stream);
     this._readIntoRequests = [];
   }

   _createClass(ReadableStreamBYOBReader, [{
     key: 'cancel',
     value: function cancel(reason) {
       if (!IsReadableStreamBYOBReader(this)) {
         return Promise.reject(byobReaderBrandCheckException('cancel'));
       }

       if (this._ownerReadableStream === undefined) {
         return Promise.reject(readerLockException('cancel'));
       }

       return ReadableStreamReaderGenericCancel(this, reason);
     }
   }, {
     key: 'read',
     value: function read(view) {
       if (!IsReadableStreamBYOBReader(this)) {
         return Promise.reject(byobReaderBrandCheckException('read'));
       }

       if (this._ownerReadableStream === undefined) {
         return Promise.reject(readerLockException('read from'));
       }

       if (!ArrayBuffer.isView(view)) {
         return Promise.reject(new TypeError('view must be an array buffer view'));
       }

       if (view.byteLength === 0) {
         return Promise.reject(new TypeError('view must have non-zero byteLength'));
       }

       return ReadableStreamBYOBReaderRead(this, view);
     }
   }, {
     key: 'releaseLock',
     value: function releaseLock() {
       if (!IsReadableStreamBYOBReader(this)) {
         throw byobReaderBrandCheckException('releaseLock');
       }

       if (this._ownerReadableStream === undefined) {
         return;
       }

       if (this._readIntoRequests.length > 0) {
         throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');
       }

       ReadableStreamReaderGenericRelease(this);
     }
   }, {
     key: 'closed',
     get: function get() {
       if (!IsReadableStreamBYOBReader(this)) {
         return Promise.reject(byobReaderBrandCheckException('closed'));
       }

       return this._closedPromise;
     }
   }]);

   return ReadableStreamBYOBReader;
 }();

 function IsReadableStreamBYOBReader(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_readIntoRequests')) {
     return false;
   }

   return true;
 }

 function IsReadableStreamDefaultReader(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_readRequests')) {
     return false;
   }

   return true;
 }

 function ReadableStreamReaderGenericInitialize(reader, stream) {
   reader._ownerReadableStream = stream;
   stream._reader = reader;

   if (stream._state === 'readable') {
     defaultReaderClosedPromiseInitialize(reader);
   } else if (stream._state === 'closed') {
     defaultReaderClosedPromiseInitializeAsResolved(reader);
   } else {
     assert(stream._state === 'errored', 'state must be errored');
     defaultReaderClosedPromiseInitializeAsRejected(reader, stream._storedError);

     reader._closedPromise["catch"](function () {});
   }
 }

 function ReadableStreamReaderGenericCancel(reader, reason) {
   var stream = reader._ownerReadableStream;
   assert(stream !== undefined);
   return ReadableStreamCancel(stream, reason);
 }

 function ReadableStreamReaderGenericRelease(reader) {
   assert(reader._ownerReadableStream !== undefined);
   assert(reader._ownerReadableStream._reader === reader);

   if (reader._ownerReadableStream._state === 'readable') {
     defaultReaderClosedPromiseReject(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\'s closedness'));
   } else {
     defaultReaderClosedPromiseResetToRejected(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\'s closedness'));
   }

   reader._closedPromise["catch"](function () {});

   reader._ownerReadableStream._reader = undefined;
   reader._ownerReadableStream = undefined;
 }

 function ReadableStreamBYOBReaderRead(reader, view) {
   var stream = reader._ownerReadableStream;
   assert(stream !== undefined);
   stream._disturbed = true;

   if (stream._state === 'errored') {
     return Promise.reject(stream._storedError);
   }

   return ReadableByteStreamControllerPullInto(stream._readableStreamController, view);
 }

 function ReadableStreamDefaultReaderRead(reader) {
   var stream = reader._ownerReadableStream;
   assert(stream !== undefined);
   stream._disturbed = true;

   if (stream._state === 'closed') {
     return Promise.resolve(CreateIterResultObject(undefined, true));
   }

   if (stream._state === 'errored') {
     return Promise.reject(stream._storedError);
   }

   assert(stream._state === 'readable');
   return stream._readableStreamController.__pullSteps();
 }

 var ReadableStreamDefaultController = function () {
   function ReadableStreamDefaultController(stream, underlyingSource, size, highWaterMark) {
     _classCallCheck(this, ReadableStreamDefaultController);

     if (IsReadableStream(stream) === false) {
       throw new TypeError('ReadableStreamDefaultController can only be constructed with a ReadableStream instance');
     }

     if (stream._readableStreamController !== undefined) {
       throw new TypeError('ReadableStreamDefaultController instances can only be created by the ReadableStream constructor');
     }

     this._controlledReadableStream = stream;
     this._underlyingSource = underlyingSource;
     this._queue = undefined;
     this._queueTotalSize = undefined;
     ResetQueue(this);
     this._started = false;
     this._closeRequested = false;
     this._pullAgain = false;
     this._pulling = false;
     var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);
     this._strategySize = normalizedStrategy.size;
     this._strategyHWM = normalizedStrategy.highWaterMark;
     var controller = this;
     var startResult = InvokeOrNoop(underlyingSource, 'start', [this]);
     Promise.resolve(startResult).then(function () {
       controller._started = true;
       assert(controller._pulling === false);
       assert(controller._pullAgain === false);
       ReadableStreamDefaultControllerCallPullIfNeeded(controller);
     }, function (r) {
       ReadableStreamDefaultControllerErrorIfNeeded(controller, r);
     })["catch"](rethrowAssertionErrorRejection);
   }

   _createClass(ReadableStreamDefaultController, [{
     key: 'close',
     value: function close() {
       if (IsReadableStreamDefaultController(this) === false) {
         throw defaultControllerBrandCheckException('close');
       }

       if (this._closeRequested === true) {
         throw new TypeError('The stream has already been closed; do not close it again!');
       }

       var state = this._controlledReadableStream._state;

       if (state !== 'readable') {
         throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');
       }

       ReadableStreamDefaultControllerClose(this);
     }
   }, {
     key: 'enqueue',
     value: function enqueue(chunk) {
       if (IsReadableStreamDefaultController(this) === false) {
         throw defaultControllerBrandCheckException('enqueue');
       }

       if (this._closeRequested === true) {
         throw new TypeError('stream is closed or draining');
       }

       var state = this._controlledReadableStream._state;

       if (state !== 'readable') {
         throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');
       }

       return ReadableStreamDefaultControllerEnqueue(this, chunk);
     }
   }, {
     key: 'error',
     value: function error(e) {
       if (IsReadableStreamDefaultController(this) === false) {
         throw defaultControllerBrandCheckException('error');
       }

       var stream = this._controlledReadableStream;

       if (stream._state !== 'readable') {
         throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');
       }

       ReadableStreamDefaultControllerError(this, e);
     }
   }, {
     key: '__cancelSteps',
     value: function __cancelSteps(reason) {
       ResetQueue(this);
       return PromiseInvokeOrNoop(this._underlyingSource, 'cancel', [reason]);
     }
   }, {
     key: '__pullSteps',
     value: function __pullSteps() {
       var stream = this._controlledReadableStream;

       if (this._queue.length > 0) {
         var chunk = DequeueValue(this);

         if (this._closeRequested === true && this._queue.length === 0) {
           ReadableStreamClose(stream);
         } else {
           ReadableStreamDefaultControllerCallPullIfNeeded(this);
         }

         return Promise.resolve(CreateIterResultObject(chunk, false));
       }

       var pendingPromise = ReadableStreamAddReadRequest(stream);
       ReadableStreamDefaultControllerCallPullIfNeeded(this);
       return pendingPromise;
     }
   }, {
     key: 'desiredSize',
     get: function get() {
       if (IsReadableStreamDefaultController(this) === false) {
         throw defaultControllerBrandCheckException('desiredSize');
       }

       return ReadableStreamDefaultControllerGetDesiredSize(this);
     }
   }]);

   return ReadableStreamDefaultController;
 }();

 function IsReadableStreamDefaultController(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSource')) {
     return false;
   }

   return true;
 }

 function ReadableStreamDefaultControllerCallPullIfNeeded(controller) {
   var shouldPull = ReadableStreamDefaultControllerShouldCallPull(controller);

   if (shouldPull === false) {
     return undefined;
   }

   if (controller._pulling === true) {
     controller._pullAgain = true;
     return undefined;
   }

   assert(controller._pullAgain === false);
   controller._pulling = true;
   var pullPromise = PromiseInvokeOrNoop(controller._underlyingSource, 'pull', [controller]);
   pullPromise.then(function () {
     controller._pulling = false;

     if (controller._pullAgain === true) {
       controller._pullAgain = false;
       return ReadableStreamDefaultControllerCallPullIfNeeded(controller);
     }

     return undefined;
   }, function (e) {
     ReadableStreamDefaultControllerErrorIfNeeded(controller, e);
   })["catch"](rethrowAssertionErrorRejection);
   return undefined;
 }

 function ReadableStreamDefaultControllerShouldCallPull(controller) {
   var stream = controller._controlledReadableStream;

   if (stream._state === 'closed' || stream._state === 'errored') {
     return false;
   }

   if (controller._closeRequested === true) {
     return false;
   }

   if (controller._started === false) {
     return false;
   }

   if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
     return true;
   }

   var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);

   if (desiredSize > 0) {
     return true;
   }

   return false;
 }

 function ReadableStreamDefaultControllerClose(controller) {
   var stream = controller._controlledReadableStream;
   assert(controller._closeRequested === false);
   assert(stream._state === 'readable');
   controller._closeRequested = true;

   if (controller._queue.length === 0) {
     ReadableStreamClose(stream);
   }
 }

 function ReadableStreamDefaultControllerEnqueue(controller, chunk) {
   var stream = controller._controlledReadableStream;
   assert(controller._closeRequested === false);
   assert(stream._state === 'readable');

   if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
     ReadableStreamFulfillReadRequest(stream, chunk, false);
   } else {
     var chunkSize = 1;

     if (controller._strategySize !== undefined) {
       var strategySize = controller._strategySize;

       try {
         chunkSize = strategySize(chunk);
       } catch (chunkSizeE) {
         ReadableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);
         throw chunkSizeE;
       }
     }

     try {
       EnqueueValueWithSize(controller, chunk, chunkSize);
     } catch (enqueueE) {
       ReadableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);
       throw enqueueE;
     }
   }

   ReadableStreamDefaultControllerCallPullIfNeeded(controller);
   return undefined;
 }

 function ReadableStreamDefaultControllerError(controller, e) {
   var stream = controller._controlledReadableStream;
   assert(stream._state === 'readable');
   ResetQueue(controller);
   ReadableStreamError(stream, e);
 }

 function ReadableStreamDefaultControllerErrorIfNeeded(controller, e) {
   if (controller._controlledReadableStream._state === 'readable') {
     ReadableStreamDefaultControllerError(controller, e);
   }
 }

 function ReadableStreamDefaultControllerGetDesiredSize(controller) {
   var stream = controller._controlledReadableStream;
   var state = stream._state;

   if (state === 'errored') {
     return null;
   }

   if (state === 'closed') {
     return 0;
   }

   return controller._strategyHWM - controller._queueTotalSize;
 }

 var ReadableStreamBYOBRequest = function () {
   function ReadableStreamBYOBRequest(controller, view) {
     _classCallCheck(this, ReadableStreamBYOBRequest);

     this._associatedReadableByteStreamController = controller;
     this._view = view;
   }

   _createClass(ReadableStreamBYOBRequest, [{
     key: 'respond',
     value: function respond(bytesWritten) {
       if (IsReadableStreamBYOBRequest(this) === false) {
         throw byobRequestBrandCheckException('respond');
       }

       if (this._associatedReadableByteStreamController === undefined) {
         throw new TypeError('This BYOB request has been invalidated');
       }

       ReadableByteStreamControllerRespond(this._associatedReadableByteStreamController, bytesWritten);
     }
   }, {
     key: 'respondWithNewView',
     value: function respondWithNewView(view) {
       if (IsReadableStreamBYOBRequest(this) === false) {
         throw byobRequestBrandCheckException('respond');
       }

       if (this._associatedReadableByteStreamController === undefined) {
         throw new TypeError('This BYOB request has been invalidated');
       }

       if (!ArrayBuffer.isView(view)) {
         throw new TypeError('You can only respond with array buffer views');
       }

       ReadableByteStreamControllerRespondWithNewView(this._associatedReadableByteStreamController, view);
     }
   }, {
     key: 'view',
     get: function get() {
       return this._view;
     }
   }]);

   return ReadableStreamBYOBRequest;
 }();

 var ReadableByteStreamController = function () {
   function ReadableByteStreamController(stream, underlyingByteSource, highWaterMark) {
     _classCallCheck(this, ReadableByteStreamController);

     if (IsReadableStream(stream) === false) {
       throw new TypeError('ReadableByteStreamController can only be constructed with a ReadableStream instance given ' + 'a byte source');
     }

     if (stream._readableStreamController !== undefined) {
       throw new TypeError('ReadableByteStreamController instances can only be created by the ReadableStream constructor given a byte ' + 'source');
     }

     this._controlledReadableStream = stream;
     this._underlyingByteSource = underlyingByteSource;
     this._pullAgain = false;
     this._pulling = false;
     ReadableByteStreamControllerClearPendingPullIntos(this);
     this._queue = this._queueTotalSize = undefined;
     ResetQueue(this);
     this._closeRequested = false;
     this._started = false;
     this._strategyHWM = ValidateAndNormalizeHighWaterMark(highWaterMark);
     var autoAllocateChunkSize = underlyingByteSource.autoAllocateChunkSize;

     if (autoAllocateChunkSize !== undefined) {
       if (Number.isInteger(autoAllocateChunkSize) === false || autoAllocateChunkSize <= 0) {
         throw new RangeError('autoAllocateChunkSize must be a positive integer');
       }
     }

     this._autoAllocateChunkSize = autoAllocateChunkSize;
     this._pendingPullIntos = [];
     var controller = this;
     var startResult = InvokeOrNoop(underlyingByteSource, 'start', [this]);
     Promise.resolve(startResult).then(function () {
       controller._started = true;
       assert(controller._pulling === false);
       assert(controller._pullAgain === false);
       ReadableByteStreamControllerCallPullIfNeeded(controller);
     }, function (r) {
       if (stream._state === 'readable') {
         ReadableByteStreamControllerError(controller, r);
       }
     })["catch"](rethrowAssertionErrorRejection);
   }

   _createClass(ReadableByteStreamController, [{
     key: 'close',
     value: function close() {
       if (IsReadableByteStreamController(this) === false) {
         throw byteStreamControllerBrandCheckException('close');
       }

       if (this._closeRequested === true) {
         throw new TypeError('The stream has already been closed; do not close it again!');
       }

       var state = this._controlledReadableStream._state;

       if (state !== 'readable') {
         throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');
       }

       ReadableByteStreamControllerClose(this);
     }
   }, {
     key: 'enqueue',
     value: function enqueue(chunk) {
       if (IsReadableByteStreamController(this) === false) {
         throw byteStreamControllerBrandCheckException('enqueue');
       }

       if (this._closeRequested === true) {
         throw new TypeError('stream is closed or draining');
       }

       var state = this._controlledReadableStream._state;

       if (state !== 'readable') {
         throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');
       }

       if (!ArrayBuffer.isView(chunk)) {
         throw new TypeError('You can only enqueue array buffer views when using a ReadableByteStreamController');
       }

       ReadableByteStreamControllerEnqueue(this, chunk);
     }
   }, {
     key: 'error',
     value: function error(e) {
       if (IsReadableByteStreamController(this) === false) {
         throw byteStreamControllerBrandCheckException('error');
       }

       var stream = this._controlledReadableStream;

       if (stream._state !== 'readable') {
         throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');
       }

       ReadableByteStreamControllerError(this, e);
     }
   }, {
     key: '__cancelSteps',
     value: function __cancelSteps(reason) {
       if (this._pendingPullIntos.length > 0) {
         var firstDescriptor = this._pendingPullIntos[0];
         firstDescriptor.bytesFilled = 0;
       }

       ResetQueue(this);
       return PromiseInvokeOrNoop(this._underlyingByteSource, 'cancel', [reason]);
     }
   }, {
     key: '__pullSteps',
     value: function __pullSteps() {
       var stream = this._controlledReadableStream;
       assert(ReadableStreamHasDefaultReader(stream) === true);

       if (this._queueTotalSize > 0) {
         assert(ReadableStreamGetNumReadRequests(stream) === 0);

         var entry = this._queue.shift();

         this._queueTotalSize -= entry.byteLength;
         ReadableByteStreamControllerHandleQueueDrain(this);
         var view = void 0;

         try {
           view = new Uint8Array(entry.buffer, entry.byteOffset, entry.byteLength);
         } catch (viewE) {
           return Promise.reject(viewE);
         }

         return Promise.resolve(CreateIterResultObject(view, false));
       }

       var autoAllocateChunkSize = this._autoAllocateChunkSize;

       if (autoAllocateChunkSize !== undefined) {
         var buffer = void 0;

         try {
           buffer = new ArrayBuffer(autoAllocateChunkSize);
         } catch (bufferE) {
           return Promise.reject(bufferE);
         }

         var pullIntoDescriptor = {
           buffer: buffer,
           byteOffset: 0,
           byteLength: autoAllocateChunkSize,
           bytesFilled: 0,
           elementSize: 1,
           ctor: Uint8Array,
           readerType: 'default'
         };

         this._pendingPullIntos.push(pullIntoDescriptor);
       }

       var promise = ReadableStreamAddReadRequest(stream);
       ReadableByteStreamControllerCallPullIfNeeded(this);
       return promise;
     }
   }, {
     key: 'byobRequest',
     get: function get() {
       if (IsReadableByteStreamController(this) === false) {
         throw byteStreamControllerBrandCheckException('byobRequest');
       }

       if (this._byobRequest === undefined && this._pendingPullIntos.length > 0) {
         var firstDescriptor = this._pendingPullIntos[0];
         var view = new Uint8Array(firstDescriptor.buffer, firstDescriptor.byteOffset + firstDescriptor.bytesFilled, firstDescriptor.byteLength - firstDescriptor.bytesFilled);
         this._byobRequest = new ReadableStreamBYOBRequest(this, view);
       }

       return this._byobRequest;
     }
   }, {
     key: 'desiredSize',
     get: function get() {
       if (IsReadableByteStreamController(this) === false) {
         throw byteStreamControllerBrandCheckException('desiredSize');
       }

       return ReadableByteStreamControllerGetDesiredSize(this);
     }
   }]);

   return ReadableByteStreamController;
 }();

 function IsReadableByteStreamController(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_underlyingByteSource')) {
     return false;
   }

   return true;
 }

 function IsReadableStreamBYOBRequest(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_associatedReadableByteStreamController')) {
     return false;
   }

   return true;
 }

 function ReadableByteStreamControllerCallPullIfNeeded(controller) {
   var shouldPull = ReadableByteStreamControllerShouldCallPull(controller);

   if (shouldPull === false) {
     return undefined;
   }

   if (controller._pulling === true) {
     controller._pullAgain = true;
     return undefined;
   }

   assert(controller._pullAgain === false);
   controller._pulling = true;
   var pullPromise = PromiseInvokeOrNoop(controller._underlyingByteSource, 'pull', [controller]);
   pullPromise.then(function () {
     controller._pulling = false;

     if (controller._pullAgain === true) {
       controller._pullAgain = false;
       ReadableByteStreamControllerCallPullIfNeeded(controller);
     }
   }, function (e) {
     if (controller._controlledReadableStream._state === 'readable') {
       ReadableByteStreamControllerError(controller, e);
     }
   })["catch"](rethrowAssertionErrorRejection);
   return undefined;
 }

 function ReadableByteStreamControllerClearPendingPullIntos(controller) {
   ReadableByteStreamControllerInvalidateBYOBRequest(controller);
   controller._pendingPullIntos = [];
 }

 function ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor) {
   assert(stream._state !== 'errored', 'state must not be errored');
   var done = false;

   if (stream._state === 'closed') {
     assert(pullIntoDescriptor.bytesFilled === 0);
     done = true;
   }

   var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);

   if (pullIntoDescriptor.readerType === 'default') {
     ReadableStreamFulfillReadRequest(stream, filledView, done);
   } else {
     assert(pullIntoDescriptor.readerType === 'byob');
     ReadableStreamFulfillReadIntoRequest(stream, filledView, done);
   }
 }

 function ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor) {
   var bytesFilled = pullIntoDescriptor.bytesFilled;
   var elementSize = pullIntoDescriptor.elementSize;
   assert(bytesFilled <= pullIntoDescriptor.byteLength);
   assert(bytesFilled % elementSize === 0);
   return new pullIntoDescriptor.ctor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, bytesFilled / elementSize);
 }

 function ReadableByteStreamControllerEnqueueChunkToQueue(controller, buffer, byteOffset, byteLength) {
   controller._queue.push({
     buffer: buffer,
     byteOffset: byteOffset,
     byteLength: byteLength
   });

   controller._queueTotalSize += byteLength;
 }

 function ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) {
   var elementSize = pullIntoDescriptor.elementSize;
   var currentAlignedBytes = pullIntoDescriptor.bytesFilled - pullIntoDescriptor.bytesFilled % elementSize;
   var maxBytesToCopy = Math.min(controller._queueTotalSize, pullIntoDescriptor.byteLength - pullIntoDescriptor.bytesFilled);
   var maxBytesFilled = pullIntoDescriptor.bytesFilled + maxBytesToCopy;
   var maxAlignedBytes = maxBytesFilled - maxBytesFilled % elementSize;
   var totalBytesToCopyRemaining = maxBytesToCopy;
   var ready = false;

   if (maxAlignedBytes > currentAlignedBytes) {
     totalBytesToCopyRemaining = maxAlignedBytes - pullIntoDescriptor.bytesFilled;
     ready = true;
   }

   var queue = controller._queue;

   while (totalBytesToCopyRemaining > 0) {
     var headOfQueue = queue[0];
     var bytesToCopy = Math.min(totalBytesToCopyRemaining, headOfQueue.byteLength);
     var destStart = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;
     ArrayBufferCopy(pullIntoDescriptor.buffer, destStart, headOfQueue.buffer, headOfQueue.byteOffset, bytesToCopy);

     if (headOfQueue.byteLength === bytesToCopy) {
       queue.shift();
     } else {
       headOfQueue.byteOffset += bytesToCopy;
       headOfQueue.byteLength -= bytesToCopy;
     }

     controller._queueTotalSize -= bytesToCopy;
     ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesToCopy, pullIntoDescriptor);
     totalBytesToCopyRemaining -= bytesToCopy;
   }

   if (ready === false) {
     assert(controller._queueTotalSize === 0, 'queue must be empty');
     assert(pullIntoDescriptor.bytesFilled > 0);
     assert(pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize);
   }

   return ready;
 }

 function ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, size, pullIntoDescriptor) {
   assert(controller._pendingPullIntos.length === 0 || controller._pendingPullIntos[0] === pullIntoDescriptor);
   ReadableByteStreamControllerInvalidateBYOBRequest(controller);
   pullIntoDescriptor.bytesFilled += size;
 }

 function ReadableByteStreamControllerHandleQueueDrain(controller) {
   assert(controller._controlledReadableStream._state === 'readable');

   if (controller._queueTotalSize === 0 && controller._closeRequested === true) {
     ReadableStreamClose(controller._controlledReadableStream);
   } else {
     ReadableByteStreamControllerCallPullIfNeeded(controller);
   }
 }

 function ReadableByteStreamControllerInvalidateBYOBRequest(controller) {
   if (controller._byobRequest === undefined) {
     return;
   }

   controller._byobRequest._associatedReadableByteStreamController = undefined;
   controller._byobRequest._view = undefined;
   controller._byobRequest = undefined;
 }

 function ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller) {
   assert(controller._closeRequested === false);

   while (controller._pendingPullIntos.length > 0) {
     if (controller._queueTotalSize === 0) {
       return;
     }

     var pullIntoDescriptor = controller._pendingPullIntos[0];

     if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {
       ReadableByteStreamControllerShiftPendingPullInto(controller);
       ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);
     }
   }
 }

 function ReadableByteStreamControllerPullInto(controller, view) {
   var stream = controller._controlledReadableStream;
   var elementSize = 1;

   if (view.constructor !== DataView) {
     elementSize = view.constructor.BYTES_PER_ELEMENT;
   }

   var ctor = view.constructor;
   var pullIntoDescriptor = {
     buffer: view.buffer,
     byteOffset: view.byteOffset,
     byteLength: view.byteLength,
     bytesFilled: 0,
     elementSize: elementSize,
     ctor: ctor,
     readerType: 'byob'
   };

   if (controller._pendingPullIntos.length > 0) {
     pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);

     controller._pendingPullIntos.push(pullIntoDescriptor);

     return ReadableStreamAddReadIntoRequest(stream);
   }

   if (stream._state === 'closed') {
     var emptyView = new view.constructor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, 0);
     return Promise.resolve(CreateIterResultObject(emptyView, true));
   }

   if (controller._queueTotalSize > 0) {
     if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {
       var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);
       ReadableByteStreamControllerHandleQueueDrain(controller);
       return Promise.resolve(CreateIterResultObject(filledView, false));
     }

     if (controller._closeRequested === true) {
       var e = new TypeError('Insufficient bytes to fill elements in the given buffer');
       ReadableByteStreamControllerError(controller, e);
       return Promise.reject(e);
     }
   }

   pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);

   controller._pendingPullIntos.push(pullIntoDescriptor);

   var promise = ReadableStreamAddReadIntoRequest(stream);
   ReadableByteStreamControllerCallPullIfNeeded(controller);
   return promise;
 }

 function ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor) {
   firstDescriptor.buffer = TransferArrayBuffer(firstDescriptor.buffer);
   assert(firstDescriptor.bytesFilled === 0, 'bytesFilled must be 0');
   var stream = controller._controlledReadableStream;

   if (ReadableStreamHasBYOBReader(stream) === true) {
     while (ReadableStreamGetNumReadIntoRequests(stream) > 0) {
       var pullIntoDescriptor = ReadableByteStreamControllerShiftPendingPullInto(controller);
       ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor);
     }
   }
 }

 function ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, pullIntoDescriptor) {
   if (pullIntoDescriptor.bytesFilled + bytesWritten > pullIntoDescriptor.byteLength) {
     throw new RangeError('bytesWritten out of range');
   }

   ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesWritten, pullIntoDescriptor);

   if (pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize) {
     return;
   }

   ReadableByteStreamControllerShiftPendingPullInto(controller);
   var remainderSize = pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize;

   if (remainderSize > 0) {
     var end = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;
     var remainder = pullIntoDescriptor.buffer.slice(end - remainderSize, end);
     ReadableByteStreamControllerEnqueueChunkToQueue(controller, remainder, 0, remainder.byteLength);
   }

   pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);
   pullIntoDescriptor.bytesFilled -= remainderSize;
   ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);
   ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);
 }

 function ReadableByteStreamControllerRespondInternal(controller, bytesWritten) {
   var firstDescriptor = controller._pendingPullIntos[0];
   var stream = controller._controlledReadableStream;

   if (stream._state === 'closed') {
     if (bytesWritten !== 0) {
       throw new TypeError('bytesWritten must be 0 when calling respond() on a closed stream');
     }

     ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor);
   } else {
     assert(stream._state === 'readable');
     ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, firstDescriptor);
   }
 }

 function ReadableByteStreamControllerShiftPendingPullInto(controller) {
   var descriptor = controller._pendingPullIntos.shift();

   ReadableByteStreamControllerInvalidateBYOBRequest(controller);
   return descriptor;
 }

 function ReadableByteStreamControllerShouldCallPull(controller) {
   var stream = controller._controlledReadableStream;

   if (stream._state !== 'readable') {
     return false;
   }

   if (controller._closeRequested === true) {
     return false;
   }

   if (controller._started === false) {
     return false;
   }

   if (ReadableStreamHasDefaultReader(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
     return true;
   }

   if (ReadableStreamHasBYOBReader(stream) === true && ReadableStreamGetNumReadIntoRequests(stream) > 0) {
     return true;
   }

   if (ReadableByteStreamControllerGetDesiredSize(controller) > 0) {
     return true;
   }

   return false;
 }

 function ReadableByteStreamControllerClose(controller) {
   var stream = controller._controlledReadableStream;
   assert(controller._closeRequested === false);
   assert(stream._state === 'readable');

   if (controller._queueTotalSize > 0) {
     controller._closeRequested = true;
     return;
   }

   if (controller._pendingPullIntos.length > 0) {
     var firstPendingPullInto = controller._pendingPullIntos[0];

     if (firstPendingPullInto.bytesFilled > 0) {
       var e = new TypeError('Insufficient bytes to fill elements in the given buffer');
       ReadableByteStreamControllerError(controller, e);
       throw e;
     }
   }

   ReadableStreamClose(stream);
 }

 function ReadableByteStreamControllerEnqueue(controller, chunk) {
   var stream = controller._controlledReadableStream;
   assert(controller._closeRequested === false);
   assert(stream._state === 'readable');
   var buffer = chunk.buffer;
   var byteOffset = chunk.byteOffset;
   var byteLength = chunk.byteLength;
   var transferredBuffer = TransferArrayBuffer(buffer);

   if (ReadableStreamHasDefaultReader(stream) === true) {
     if (ReadableStreamGetNumReadRequests(stream) === 0) {
       ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
     } else {
       assert(controller._queue.length === 0);
       var transferredView = new Uint8Array(transferredBuffer, byteOffset, byteLength);
       ReadableStreamFulfillReadRequest(stream, transferredView, false);
     }
   } else if (ReadableStreamHasBYOBReader(stream) === true) {
     ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
     ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);
   } else {
     assert(IsReadableStreamLocked(stream) === false, 'stream must not be locked');
     ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
   }
 }

 function ReadableByteStreamControllerError(controller, e) {
   var stream = controller._controlledReadableStream;
   assert(stream._state === 'readable');
   ReadableByteStreamControllerClearPendingPullIntos(controller);
   ResetQueue(controller);
   ReadableStreamError(stream, e);
 }

 function ReadableByteStreamControllerGetDesiredSize(controller) {
   var stream = controller._controlledReadableStream;
   var state = stream._state;

   if (state === 'errored') {
     return null;
   }

   if (state === 'closed') {
     return 0;
   }

   return controller._strategyHWM - controller._queueTotalSize;
 }

 function ReadableByteStreamControllerRespond(controller, bytesWritten) {
   bytesWritten = Number(bytesWritten);

   if (IsFiniteNonNegativeNumber(bytesWritten) === false) {
     throw new RangeError('bytesWritten must be a finite');
   }

   assert(controller._pendingPullIntos.length > 0);
   ReadableByteStreamControllerRespondInternal(controller, bytesWritten);
 }

 function ReadableByteStreamControllerRespondWithNewView(controller, view) {
   assert(controller._pendingPullIntos.length > 0);
   var firstDescriptor = controller._pendingPullIntos[0];

   if (firstDescriptor.byteOffset + firstDescriptor.bytesFilled !== view.byteOffset) {
     throw new RangeError('The region specified by view does not match byobRequest');
   }

   if (firstDescriptor.byteLength !== view.byteLength) {
     throw new RangeError('The buffer of view has different capacity than byobRequest');
   }

   firstDescriptor.buffer = view.buffer;
   ReadableByteStreamControllerRespondInternal(controller, view.byteLength);
 }

 function streamBrandCheckException(name) {
   return new TypeError('ReadableStream.prototype.' + name + ' can only be used on a ReadableStream');
 }

 function readerLockException(name) {
   return new TypeError('Cannot ' + name + ' a stream using a released reader');
 }

 function defaultReaderBrandCheckException(name) {
   return new TypeError('ReadableStreamDefaultReader.prototype.' + name + ' can only be used on a ReadableStreamDefaultReader');
 }

 function defaultReaderClosedPromiseInitialize(reader) {
   reader._closedPromise = new Promise(function (resolve, reject) {
     reader._closedPromise_resolve = resolve;
     reader._closedPromise_reject = reject;
   });
 }

 function defaultReaderClosedPromiseInitializeAsRejected(reader, reason) {
   reader._closedPromise = Promise.reject(reason);
   reader._closedPromise_resolve = undefined;
   reader._closedPromise_reject = undefined;
 }

 function defaultReaderClosedPromiseInitializeAsResolved(reader) {
   reader._closedPromise = Promise.resolve(undefined);
   reader._closedPromise_resolve = undefined;
   reader._closedPromise_reject = undefined;
 }

 function defaultReaderClosedPromiseReject(reader, reason) {
   assert(reader._closedPromise_resolve !== undefined);
   assert(reader._closedPromise_reject !== undefined);

   reader._closedPromise_reject(reason);

   reader._closedPromise_resolve = undefined;
   reader._closedPromise_reject = undefined;
 }

 function defaultReaderClosedPromiseResetToRejected(reader, reason) {
   assert(reader._closedPromise_resolve === undefined);
   assert(reader._closedPromise_reject === undefined);
   reader._closedPromise = Promise.reject(reason);
 }

 function defaultReaderClosedPromiseResolve(reader) {
   assert(reader._closedPromise_resolve !== undefined);
   assert(reader._closedPromise_reject !== undefined);

   reader._closedPromise_resolve(undefined);

   reader._closedPromise_resolve = undefined;
   reader._closedPromise_reject = undefined;
 }

 function byobReaderBrandCheckException(name) {
   return new TypeError('ReadableStreamBYOBReader.prototype.' + name + ' can only be used on a ReadableStreamBYOBReader');
 }

 function defaultControllerBrandCheckException(name) {
   return new TypeError('ReadableStreamDefaultController.prototype.' + name + ' can only be used on a ReadableStreamDefaultController');
 }

 function byobRequestBrandCheckException(name) {
   return new TypeError('ReadableStreamBYOBRequest.prototype.' + name + ' can only be used on a ReadableStreamBYOBRequest');
 }

 function byteStreamControllerBrandCheckException(name) {
   return new TypeError('ReadableByteStreamController.prototype.' + name + ' can only be used on a ReadableByteStreamController');
 }

 function ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise) {
   try {
     Promise.prototype.then.call(promise, undefined, function () {});
   } catch (e) {}
 }
}, function (module, exports, __w_pdfjs_require__) {
 "use strict";

 var transformStream = __w_pdfjs_require__(6);

 var readableStream = __w_pdfjs_require__(4);

 var writableStream = __w_pdfjs_require__(2);

 exports.TransformStream = transformStream.TransformStream;
 exports.ReadableStream = readableStream.ReadableStream;
 exports.IsReadableStreamDisturbed = readableStream.IsReadableStreamDisturbed;
 exports.ReadableStreamDefaultControllerClose = readableStream.ReadableStreamDefaultControllerClose;
 exports.ReadableStreamDefaultControllerEnqueue = readableStream.ReadableStreamDefaultControllerEnqueue;
 exports.ReadableStreamDefaultControllerError = readableStream.ReadableStreamDefaultControllerError;
 exports.ReadableStreamDefaultControllerGetDesiredSize = readableStream.ReadableStreamDefaultControllerGetDesiredSize;
 exports.AcquireWritableStreamDefaultWriter = writableStream.AcquireWritableStreamDefaultWriter;
 exports.IsWritableStream = writableStream.IsWritableStream;
 exports.IsWritableStreamLocked = writableStream.IsWritableStreamLocked;
 exports.WritableStream = writableStream.WritableStream;
 exports.WritableStreamAbort = writableStream.WritableStreamAbort;
 exports.WritableStreamDefaultControllerError = writableStream.WritableStreamDefaultControllerError;
 exports.WritableStreamDefaultWriterCloseWithErrorPropagation = writableStream.WritableStreamDefaultWriterCloseWithErrorPropagation;
 exports.WritableStreamDefaultWriterRelease = writableStream.WritableStreamDefaultWriterRelease;
 exports.WritableStreamDefaultWriterWrite = writableStream.WritableStreamDefaultWriterWrite;
}, function (module, exports, __w_pdfjs_require__) {
 "use strict";

 var _createClass = function () {
   function defineProperties(target, props) {
     for (var i = 0; i < props.length; i++) {
       var descriptor = props[i];
       descriptor.enumerable = descriptor.enumerable || false;
       descriptor.configurable = true;
       if ("value" in descriptor) descriptor.writable = true;
       Object.defineProperty(target, descriptor.key, descriptor);
     }
   }

   return function (Constructor, protoProps, staticProps) {
     if (protoProps) defineProperties(Constructor.prototype, protoProps);
     if (staticProps) defineProperties(Constructor, staticProps);
     return Constructor;
   };
 }();

 function _classCallCheck(instance, Constructor) {
   if (!(instance instanceof Constructor)) {
     throw new TypeError("Cannot call a class as a function");
   }
 }

 var _require = __w_pdfjs_require__(1),
     assert = _require.assert;

 var _require2 = __w_pdfjs_require__(0),
     InvokeOrNoop = _require2.InvokeOrNoop,
     PromiseInvokeOrPerformFallback = _require2.PromiseInvokeOrPerformFallback,
     PromiseInvokeOrNoop = _require2.PromiseInvokeOrNoop,
     typeIsObject = _require2.typeIsObject;

 var _require3 = __w_pdfjs_require__(4),
     ReadableStream = _require3.ReadableStream,
     ReadableStreamDefaultControllerClose = _require3.ReadableStreamDefaultControllerClose,
     ReadableStreamDefaultControllerEnqueue = _require3.ReadableStreamDefaultControllerEnqueue,
     ReadableStreamDefaultControllerError = _require3.ReadableStreamDefaultControllerError,
     ReadableStreamDefaultControllerGetDesiredSize = _require3.ReadableStreamDefaultControllerGetDesiredSize;

 var _require4 = __w_pdfjs_require__(2),
     WritableStream = _require4.WritableStream,
     WritableStreamDefaultControllerError = _require4.WritableStreamDefaultControllerError;

 function TransformStreamCloseReadable(transformStream) {
   if (transformStream._errored === true) {
     throw new TypeError('TransformStream is already errored');
   }

   if (transformStream._readableClosed === true) {
     throw new TypeError('Readable side is already closed');
   }

   TransformStreamCloseReadableInternal(transformStream);
 }

 function TransformStreamEnqueueToReadable(transformStream, chunk) {
   if (transformStream._errored === true) {
     throw new TypeError('TransformStream is already errored');
   }

   if (transformStream._readableClosed === true) {
     throw new TypeError('Readable side is already closed');
   }

   var controller = transformStream._readableController;

   try {
     ReadableStreamDefaultControllerEnqueue(controller, chunk);
   } catch (e) {
     transformStream._readableClosed = true;
     TransformStreamErrorIfNeeded(transformStream, e);
     throw transformStream._storedError;
   }

   var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);
   var maybeBackpressure = desiredSize <= 0;

   if (maybeBackpressure === true && transformStream._backpressure === false) {
     TransformStreamSetBackpressure(transformStream, true);
   }
 }

 function TransformStreamError(transformStream, e) {
   if (transformStream._errored === true) {
     throw new TypeError('TransformStream is already errored');
   }

   TransformStreamErrorInternal(transformStream, e);
 }

 function TransformStreamCloseReadableInternal(transformStream) {
   assert(transformStream._errored === false);
   assert(transformStream._readableClosed === false);

   try {
     ReadableStreamDefaultControllerClose(transformStream._readableController);
   } catch (e) {
     assert(false);
   }

   transformStream._readableClosed = true;
 }

 function TransformStreamErrorIfNeeded(transformStream, e) {
   if (transformStream._errored === false) {
     TransformStreamErrorInternal(transformStream, e);
   }
 }

 function TransformStreamErrorInternal(transformStream, e) {
   assert(transformStream._errored === false);
   transformStream._errored = true;
   transformStream._storedError = e;

   if (transformStream._writableDone === false) {
     WritableStreamDefaultControllerError(transformStream._writableController, e);
   }

   if (transformStream._readableClosed === false) {
     ReadableStreamDefaultControllerError(transformStream._readableController, e);
   }
 }

 function TransformStreamReadableReadyPromise(transformStream) {
   assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');

   if (transformStream._backpressure === false) {
     return Promise.resolve();
   }

   assert(transformStream._backpressure === true, '_backpressure should have been initialized');
   return transformStream._backpressureChangePromise;
 }

 function TransformStreamSetBackpressure(transformStream, backpressure) {
   assert(transformStream._backpressure !== backpressure, 'TransformStreamSetBackpressure() should be called only when backpressure is changed');

   if (transformStream._backpressureChangePromise !== undefined) {
     transformStream._backpressureChangePromise_resolve(backpressure);
   }

   transformStream._backpressureChangePromise = new Promise(function (resolve) {
     transformStream._backpressureChangePromise_resolve = resolve;
   });

   transformStream._backpressureChangePromise.then(function (resolution) {
     assert(resolution !== backpressure, '_backpressureChangePromise should be fulfilled only when backpressure is changed');
   });

   transformStream._backpressure = backpressure;
 }

 function TransformStreamDefaultTransform(chunk, transformStreamController) {
   var transformStream = transformStreamController._controlledTransformStream;
   TransformStreamEnqueueToReadable(transformStream, chunk);
   return Promise.resolve();
 }

 function TransformStreamTransform(transformStream, chunk) {
   assert(transformStream._errored === false);
   assert(transformStream._transforming === false);
   assert(transformStream._backpressure === false);
   transformStream._transforming = true;
   var transformer = transformStream._transformer;
   var controller = transformStream._transformStreamController;
   var transformPromise = PromiseInvokeOrPerformFallback(transformer, 'transform', [chunk, controller], TransformStreamDefaultTransform, [chunk, controller]);
   return transformPromise.then(function () {
     transformStream._transforming = false;
     return TransformStreamReadableReadyPromise(transformStream);
   }, function (e) {
     TransformStreamErrorIfNeeded(transformStream, e);
     return Promise.reject(e);
   });
 }

 function IsTransformStreamDefaultController(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_controlledTransformStream')) {
     return false;
   }

   return true;
 }

 function IsTransformStream(x) {
   if (!typeIsObject(x)) {
     return false;
   }

   if (!Object.prototype.hasOwnProperty.call(x, '_transformStreamController')) {
     return false;
   }

   return true;
 }

 var TransformStreamSink = function () {
   function TransformStreamSink(transformStream, startPromise) {
     _classCallCheck(this, TransformStreamSink);

     this._transformStream = transformStream;
     this._startPromise = startPromise;
   }

   _createClass(TransformStreamSink, [{
     key: 'start',
     value: function start(c) {
       var transformStream = this._transformStream;
       transformStream._writableController = c;
       return this._startPromise.then(function () {
         return TransformStreamReadableReadyPromise(transformStream);
       });
     }
   }, {
     key: 'write',
     value: function write(chunk) {
       var transformStream = this._transformStream;
       return TransformStreamTransform(transformStream, chunk);
     }
   }, {
     key: 'abort',
     value: function abort() {
       var transformStream = this._transformStream;
       transformStream._writableDone = true;
       TransformStreamErrorInternal(transformStream, new TypeError('Writable side aborted'));
     }
   }, {
     key: 'close',
     value: function close() {
       var transformStream = this._transformStream;
       assert(transformStream._transforming === false);
       transformStream._writableDone = true;
       var flushPromise = PromiseInvokeOrNoop(transformStream._transformer, 'flush', [transformStream._transformStreamController]);
       return flushPromise.then(function () {
         if (transformStream._errored === true) {
           return Promise.reject(transformStream._storedError);
         }

         if (transformStream._readableClosed === false) {
           TransformStreamCloseReadableInternal(transformStream);
         }

         return Promise.resolve();
       })["catch"](function (r) {
         TransformStreamErrorIfNeeded(transformStream, r);
         return Promise.reject(transformStream._storedError);
       });
     }
   }]);

   return TransformStreamSink;
 }();

 var TransformStreamSource = function () {
   function TransformStreamSource(transformStream, startPromise) {
     _classCallCheck(this, TransformStreamSource);

     this._transformStream = transformStream;
     this._startPromise = startPromise;
   }

   _createClass(TransformStreamSource, [{
     key: 'start',
     value: function start(c) {
       var transformStream = this._transformStream;
       transformStream._readableController = c;
       return this._startPromise.then(function () {
         assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');

         if (transformStream._backpressure === true) {
           return Promise.resolve();
         }

         assert(transformStream._backpressure === false, '_backpressure should have been initialized');
         return transformStream._backpressureChangePromise;
       });
     }
   }, {
     key: 'pull',
     value: function pull() {
       var transformStream = this._transformStream;
       assert(transformStream._backpressure === true, 'pull() should be never called while _backpressure is false');
       assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');
       TransformStreamSetBackpressure(transformStream, false);
       return transformStream._backpressureChangePromise;
     }
   }, {
     key: 'cancel',
     value: function cancel() {
       var transformStream = this._transformStream;
       transformStream._readableClosed = true;
       TransformStreamErrorInternal(transformStream, new TypeError('Readable side canceled'));
     }
   }]);

   return TransformStreamSource;
 }();

 var TransformStreamDefaultController = function () {
   function TransformStreamDefaultController(transformStream) {
     _classCallCheck(this, TransformStreamDefaultController);

     if (IsTransformStream(transformStream) === false) {
       throw new TypeError('TransformStreamDefaultController can only be ' + 'constructed with a TransformStream instance');
     }

     if (transformStream._transformStreamController !== undefined) {
       throw new TypeError('TransformStreamDefaultController instances can ' + 'only be created by the TransformStream constructor');
     }

     this._controlledTransformStream = transformStream;
   }

   _createClass(TransformStreamDefaultController, [{
     key: 'enqueue',
     value: function enqueue(chunk) {
       if (IsTransformStreamDefaultController(this) === false) {
         throw defaultControllerBrandCheckException('enqueue');
       }

       TransformStreamEnqueueToReadable(this._controlledTransformStream, chunk);
     }
   }, {
     key: 'close',
     value: function close() {
       if (IsTransformStreamDefaultController(this) === false) {
         throw defaultControllerBrandCheckException('close');
       }

       TransformStreamCloseReadable(this._controlledTransformStream);
     }
   }, {
     key: 'error',
     value: function error(reason) {
       if (IsTransformStreamDefaultController(this) === false) {
         throw defaultControllerBrandCheckException('error');
       }

       TransformStreamError(this._controlledTransformStream, reason);
     }
   }, {
     key: 'desiredSize',
     get: function get() {
       if (IsTransformStreamDefaultController(this) === false) {
         throw defaultControllerBrandCheckException('desiredSize');
       }

       var transformStream = this._controlledTransformStream;
       var readableController = transformStream._readableController;
       return ReadableStreamDefaultControllerGetDesiredSize(readableController);
     }
   }]);

   return TransformStreamDefaultController;
 }();

 var TransformStream = function () {
   function TransformStream() {
     var transformer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

     _classCallCheck(this, TransformStream);

     this._transformer = transformer;
     var readableStrategy = transformer.readableStrategy,
         writableStrategy = transformer.writableStrategy;
     this._transforming = false;
     this._errored = false;
     this._storedError = undefined;
     this._writableController = undefined;
     this._readableController = undefined;
     this._transformStreamController = undefined;
     this._writableDone = false;
     this._readableClosed = false;
     this._backpressure = undefined;
     this._backpressureChangePromise = undefined;
     this._backpressureChangePromise_resolve = undefined;
     this._transformStreamController = new TransformStreamDefaultController(this);
     var startPromise_resolve = void 0;
     var startPromise = new Promise(function (resolve) {
       startPromise_resolve = resolve;
     });
     var source = new TransformStreamSource(this, startPromise);
     this._readable = new ReadableStream(source, readableStrategy);
     var sink = new TransformStreamSink(this, startPromise);
     this._writable = new WritableStream(sink, writableStrategy);
     assert(this._writableController !== undefined);
     assert(this._readableController !== undefined);
     var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(this._readableController);
     TransformStreamSetBackpressure(this, desiredSize <= 0);
     var transformStream = this;
     var startResult = InvokeOrNoop(transformer, 'start', [transformStream._transformStreamController]);
     startPromise_resolve(startResult);
     startPromise["catch"](function (e) {
       if (transformStream._errored === false) {
         transformStream._errored = true;
         transformStream._storedError = e;
       }
     });
   }

   _createClass(TransformStream, [{
     key: 'readable',
     get: function get() {
       if (IsTransformStream(this) === false) {
         throw streamBrandCheckException('readable');
       }

       return this._readable;
     }
   }, {
     key: 'writable',
     get: function get() {
       if (IsTransformStream(this) === false) {
         throw streamBrandCheckException('writable');
       }

       return this._writable;
     }
   }]);

   return TransformStream;
 }();

 module.exports = {
   TransformStream: TransformStream
 };

 function defaultControllerBrandCheckException(name) {
   return new TypeError('TransformStreamDefaultController.prototype.' + name + ' can only be used on a TransformStreamDefaultController');
 }

 function streamBrandCheckException(name) {
   return new TypeError('TransformStream.prototype.' + name + ' can only be used on a TransformStream');
 }
}, function (module, exports, __w_pdfjs_require__) {
 module.exports = __w_pdfjs_require__(5);
}]));

/***/ }),
/* 145 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

{
 var isURLSupported = false;

 try {
   if (typeof URL === 'function' && _typeof(URL.prototype) === 'object' && 'origin' in URL.prototype) {
     var u = new URL('b', 'http://a');
     u.pathname = 'c%20d';
     isURLSupported = u.href === 'http://a/c%20d';
   }
 } catch (ex) {}

 if (isURLSupported) {
   exports.URL = URL;
 } else {
   var PolyfillURL = __w_pdfjs_require__(146).URL;

   var OriginalURL = __w_pdfjs_require__(3).URL;

   if (OriginalURL) {
     PolyfillURL.createObjectURL = function (blob) {
       return OriginalURL.createObjectURL.apply(OriginalURL, arguments);
     };

     PolyfillURL.revokeObjectURL = function (url) {
       OriginalURL.revokeObjectURL(url);
     };
   }

   exports.URL = PolyfillURL;
 }
}

/***/ }),
/* 146 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


(function URLConstructorClosure() {
 'use strict';

 var relative = Object.create(null);
 relative['ftp'] = 21;
 relative['file'] = 0;
 relative['gopher'] = 70;
 relative['http'] = 80;
 relative['https'] = 443;
 relative['ws'] = 80;
 relative['wss'] = 443;
 var relativePathDotMapping = Object.create(null);
 relativePathDotMapping['%2e'] = '.';
 relativePathDotMapping['.%2e'] = '..';
 relativePathDotMapping['%2e.'] = '..';
 relativePathDotMapping['%2e%2e'] = '..';

 function isRelativeScheme(scheme) {
   return relative[scheme] !== undefined;
 }

 function invalid() {
   clear.call(this);
   this._isInvalid = true;
 }

 function IDNAToASCII(h) {
   if (h === '') {
     invalid.call(this);
   }

   return h.toLowerCase();
 }

 function percentEscape(c) {
   var unicode = c.charCodeAt(0);

   if (unicode > 0x20 && unicode < 0x7F && [0x22, 0x23, 0x3C, 0x3E, 0x3F, 0x60].indexOf(unicode) === -1) {
     return c;
   }

   return encodeURIComponent(c);
 }

 function percentEscapeQuery(c) {
   var unicode = c.charCodeAt(0);

   if (unicode > 0x20 && unicode < 0x7F && [0x22, 0x23, 0x3C, 0x3E, 0x60].indexOf(unicode) === -1) {
     return c;
   }

   return encodeURIComponent(c);
 }

 var EOF,
     ALPHA = /[a-zA-Z]/,
     ALPHANUMERIC = /[a-zA-Z0-9\+\-\.]/;

 function parse(input, stateOverride, base) {
   function err(message) {
     errors.push(message);
   }

   var state = stateOverride || 'scheme start',
       cursor = 0,
       buffer = '',
       seenAt = false,
       seenBracket = false,
       errors = [];

   loop: while ((input[cursor - 1] !== EOF || cursor === 0) && !this._isInvalid) {
     var c = input[cursor];

     switch (state) {
       case 'scheme start':
         if (c && ALPHA.test(c)) {
           buffer += c.toLowerCase();
           state = 'scheme';
         } else if (!stateOverride) {
           buffer = '';
           state = 'no scheme';
           continue;
         } else {
           err('Invalid scheme.');
           break loop;
         }

         break;

       case 'scheme':
         if (c && ALPHANUMERIC.test(c)) {
           buffer += c.toLowerCase();
         } else if (c === ':') {
           this._scheme = buffer;
           buffer = '';

           if (stateOverride) {
             break loop;
           }

           if (isRelativeScheme(this._scheme)) {
             this._isRelative = true;
           }

           if (this._scheme === 'file') {
             state = 'relative';
           } else if (this._isRelative && base && base._scheme === this._scheme) {
             state = 'relative or authority';
           } else if (this._isRelative) {
             state = 'authority first slash';
           } else {
             state = 'scheme data';
           }
         } else if (!stateOverride) {
           buffer = '';
           cursor = 0;
           state = 'no scheme';
           continue;
         } else if (c === EOF) {
           break loop;
         } else {
           err('Code point not allowed in scheme: ' + c);
           break loop;
         }

         break;

       case 'scheme data':
         if (c === '?') {
           this._query = '?';
           state = 'query';
         } else if (c === '#') {
           this._fragment = '#';
           state = 'fragment';
         } else {
           if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
             this._schemeData += percentEscape(c);
           }
         }

         break;

       case 'no scheme':
         if (!base || !isRelativeScheme(base._scheme)) {
           err('Missing scheme.');
           invalid.call(this);
         } else {
           state = 'relative';
           continue;
         }

         break;

       case 'relative or authority':
         if (c === '/' && input[cursor + 1] === '/') {
           state = 'authority ignore slashes';
         } else {
           err('Expected /, got: ' + c);
           state = 'relative';
           continue;
         }

         break;

       case 'relative':
         this._isRelative = true;

         if (this._scheme !== 'file') {
           this._scheme = base._scheme;
         }

         if (c === EOF) {
           this._host = base._host;
           this._port = base._port;
           this._path = base._path.slice();
           this._query = base._query;
           this._username = base._username;
           this._password = base._password;
           break loop;
         } else if (c === '/' || c === '\\') {
           if (c === '\\') {
             err('\\ is an invalid code point.');
           }

           state = 'relative slash';
         } else if (c === '?') {
           this._host = base._host;
           this._port = base._port;
           this._path = base._path.slice();
           this._query = '?';
           this._username = base._username;
           this._password = base._password;
           state = 'query';
         } else if (c === '#') {
           this._host = base._host;
           this._port = base._port;
           this._path = base._path.slice();
           this._query = base._query;
           this._fragment = '#';
           this._username = base._username;
           this._password = base._password;
           state = 'fragment';
         } else {
           var nextC = input[cursor + 1];
           var nextNextC = input[cursor + 2];

           if (this._scheme !== 'file' || !ALPHA.test(c) || nextC !== ':' && nextC !== '|' || nextNextC !== EOF && nextNextC !== '/' && nextNextC !== '\\' && nextNextC !== '?' && nextNextC !== '#') {
             this._host = base._host;
             this._port = base._port;
             this._username = base._username;
             this._password = base._password;
             this._path = base._path.slice();

             this._path.pop();
           }

           state = 'relative path';
           continue;
         }

         break;

       case 'relative slash':
         if (c === '/' || c === '\\') {
           if (c === '\\') {
             err('\\ is an invalid code point.');
           }

           if (this._scheme === 'file') {
             state = 'file host';
           } else {
             state = 'authority ignore slashes';
           }
         } else {
           if (this._scheme !== 'file') {
             this._host = base._host;
             this._port = base._port;
             this._username = base._username;
             this._password = base._password;
           }

           state = 'relative path';
           continue;
         }

         break;

       case 'authority first slash':
         if (c === '/') {
           state = 'authority second slash';
         } else {
           err('Expected \'/\', got: ' + c);
           state = 'authority ignore slashes';
           continue;
         }

         break;

       case 'authority second slash':
         state = 'authority ignore slashes';

         if (c !== '/') {
           err('Expected \'/\', got: ' + c);
           continue;
         }

         break;

       case 'authority ignore slashes':
         if (c !== '/' && c !== '\\') {
           state = 'authority';
           continue;
         } else {
           err('Expected authority, got: ' + c);
         }

         break;

       case 'authority':
         if (c === '@') {
           if (seenAt) {
             err('@ already seen.');
             buffer += '%40';
           }

           seenAt = true;

           for (var i = 0; i < buffer.length; i++) {
             var cp = buffer[i];

             if (cp === '\t' || cp === '\n' || cp === '\r') {
               err('Invalid whitespace in authority.');
               continue;
             }

             if (cp === ':' && this._password === null) {
               this._password = '';
               continue;
             }

             var tempC = percentEscape(cp);

             if (this._password !== null) {
               this._password += tempC;
             } else {
               this._username += tempC;
             }
           }

           buffer = '';
         } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
           cursor -= buffer.length;
           buffer = '';
           state = 'host';
           continue;
         } else {
           buffer += c;
         }

         break;

       case 'file host':
         if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
           if (buffer.length === 2 && ALPHA.test(buffer[0]) && (buffer[1] === ':' || buffer[1] === '|')) {
             state = 'relative path';
           } else if (buffer.length === 0) {
             state = 'relative path start';
           } else {
             this._host = IDNAToASCII.call(this, buffer);
             buffer = '';
             state = 'relative path start';
           }

           continue;
         } else if (c === '\t' || c === '\n' || c === '\r') {
           err('Invalid whitespace in file host.');
         } else {
           buffer += c;
         }

         break;

       case 'host':
       case 'hostname':
         if (c === ':' && !seenBracket) {
           this._host = IDNAToASCII.call(this, buffer);
           buffer = '';
           state = 'port';

           if (stateOverride === 'hostname') {
             break loop;
           }
         } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
           this._host = IDNAToASCII.call(this, buffer);
           buffer = '';
           state = 'relative path start';

           if (stateOverride) {
             break loop;
           }

           continue;
         } else if (c !== '\t' && c !== '\n' && c !== '\r') {
           if (c === '[') {
             seenBracket = true;
           } else if (c === ']') {
             seenBracket = false;
           }

           buffer += c;
         } else {
           err('Invalid code point in host/hostname: ' + c);
         }

         break;

       case 'port':
         if (/[0-9]/.test(c)) {
           buffer += c;
         } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#' || stateOverride) {
           if (buffer !== '') {
             var temp = parseInt(buffer, 10);

             if (temp !== relative[this._scheme]) {
               this._port = temp + '';
             }

             buffer = '';
           }

           if (stateOverride) {
             break loop;
           }

           state = 'relative path start';
           continue;
         } else if (c === '\t' || c === '\n' || c === '\r') {
           err('Invalid code point in port: ' + c);
         } else {
           invalid.call(this);
         }

         break;

       case 'relative path start':
         if (c === '\\') {
           err('\'\\\' not allowed in path.');
         }

         state = 'relative path';

         if (c !== '/' && c !== '\\') {
           continue;
         }

         break;

       case 'relative path':
         if (c === EOF || c === '/' || c === '\\' || !stateOverride && (c === '?' || c === '#')) {
           if (c === '\\') {
             err('\\ not allowed in relative path.');
           }

           var tmp;

           if (tmp = relativePathDotMapping[buffer.toLowerCase()]) {
             buffer = tmp;
           }

           if (buffer === '..') {
             this._path.pop();

             if (c !== '/' && c !== '\\') {
               this._path.push('');
             }
           } else if (buffer === '.' && c !== '/' && c !== '\\') {
             this._path.push('');
           } else if (buffer !== '.') {
             if (this._scheme === 'file' && this._path.length === 0 && buffer.length === 2 && ALPHA.test(buffer[0]) && buffer[1] === '|') {
               buffer = buffer[0] + ':';
             }

             this._path.push(buffer);
           }

           buffer = '';

           if (c === '?') {
             this._query = '?';
             state = 'query';
           } else if (c === '#') {
             this._fragment = '#';
             state = 'fragment';
           }
         } else if (c !== '\t' && c !== '\n' && c !== '\r') {
           buffer += percentEscape(c);
         }

         break;

       case 'query':
         if (!stateOverride && c === '#') {
           this._fragment = '#';
           state = 'fragment';
         } else if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
           this._query += percentEscapeQuery(c);
         }

         break;

       case 'fragment':
         if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
           this._fragment += c;
         }

         break;
     }

     cursor++;
   }
 }

 function clear() {
   this._scheme = '';
   this._schemeData = '';
   this._username = '';
   this._password = null;
   this._host = '';
   this._port = '';
   this._path = [];
   this._query = '';
   this._fragment = '';
   this._isInvalid = false;
   this._isRelative = false;
 }

 function JURL(url, base) {
   if (base !== undefined && !(base instanceof JURL)) {
     base = new JURL(String(base));
   }

   this._url = url;
   clear.call(this);
   var input = url.replace(/^[ \t\r\n\f]+|[ \t\r\n\f]+$/g, '');
   parse.call(this, input, null, base);
 }

 JURL.prototype = {
   toString: function toString() {
     return this.href;
   },

   get href() {
     if (this._isInvalid) {
       return this._url;
     }

     var authority = '';

     if (this._username !== '' || this._password !== null) {
       authority = this._username + (this._password !== null ? ':' + this._password : '') + '@';
     }

     return this.protocol + (this._isRelative ? '//' + authority + this.host : '') + this.pathname + this._query + this._fragment;
   },

   set href(value) {
     clear.call(this);
     parse.call(this, value);
   },

   get protocol() {
     return this._scheme + ':';
   },

   set protocol(value) {
     if (this._isInvalid) {
       return;
     }

     parse.call(this, value + ':', 'scheme start');
   },

   get host() {
     return this._isInvalid ? '' : this._port ? this._host + ':' + this._port : this._host;
   },

   set host(value) {
     if (this._isInvalid || !this._isRelative) {
       return;
     }

     parse.call(this, value, 'host');
   },

   get hostname() {
     return this._host;
   },

   set hostname(value) {
     if (this._isInvalid || !this._isRelative) {
       return;
     }

     parse.call(this, value, 'hostname');
   },

   get port() {
     return this._port;
   },

   set port(value) {
     if (this._isInvalid || !this._isRelative) {
       return;
     }

     parse.call(this, value, 'port');
   },

   get pathname() {
     return this._isInvalid ? '' : this._isRelative ? '/' + this._path.join('/') : this._schemeData;
   },

   set pathname(value) {
     if (this._isInvalid || !this._isRelative) {
       return;
     }

     this._path = [];
     parse.call(this, value, 'relative path start');
   },

   get search() {
     return this._isInvalid || !this._query || this._query === '?' ? '' : this._query;
   },

   set search(value) {
     if (this._isInvalid || !this._isRelative) {
       return;
     }

     this._query = '?';

     if (value[0] === '?') {
       value = value.slice(1);
     }

     parse.call(this, value, 'query');
   },

   get hash() {
     return this._isInvalid || !this._fragment || this._fragment === '#' ? '' : this._fragment;
   },

   set hash(value) {
     if (this._isInvalid) {
       return;
     }

     this._fragment = '#';

     if (value[0] === '#') {
       value = value.slice(1);
     }

     parse.call(this, value, 'fragment');
   },

   get origin() {
     var host;

     if (this._isInvalid || !this._scheme) {
       return '';
     }

     switch (this._scheme) {
       case 'data':
       case 'file':
       case 'javascript':
       case 'mailto':
         return 'null';

       case 'blob':
         try {
           return new JURL(this._schemeData).origin || 'null';
         } catch (_) {}

         return 'null';
     }

     host = this.host;

     if (!host) {
       return '';
     }

     return this._scheme + '://' + host;
   }

 };
 exports.URL = JURL;
})();

/***/ }),
/* 147 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.getDocument = getDocument;
exports.setPDFNetworkStreamFactory = setPDFNetworkStreamFactory;
exports.build = exports.version = exports.PDFPageProxy = exports.PDFDocumentProxy = exports.PDFWorker = exports.PDFDataRangeTransport = exports.LoopbackPort = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

var _display_utils = __w_pdfjs_require__(151);

var _font_loader = __w_pdfjs_require__(152);

var _api_compatibility = __w_pdfjs_require__(153);

var _canvas = __w_pdfjs_require__(154);

var _global_scope = _interopRequireDefault(__w_pdfjs_require__(3));

var _worker_options = __w_pdfjs_require__(156);

var _message_handler = __w_pdfjs_require__(157);

var _metadata = __w_pdfjs_require__(158);

var _transport_stream = __w_pdfjs_require__(160);

var _webgl = __w_pdfjs_require__(161);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var DEFAULT_RANGE_CHUNK_SIZE = 65536;
var isWorkerDisabled = false;
var fallbackWorkerSrc;
var fakeWorkerFilesLoader = null;
{
 var useRequireEnsure = false;

 if (typeof window === 'undefined') {
   isWorkerDisabled = true;

   if (typeof require.ensure === 'undefined') {
     require.ensure = require('node-ensure');
   }

   useRequireEnsure = true;
 } else if (typeof require !== 'undefined' && typeof require.ensure === 'function') {
   useRequireEnsure = true;
 }

 if (typeof requirejs !== 'undefined' && requirejs.toUrl) {
   fallbackWorkerSrc = requirejs.toUrl('pdfjs-dist/build/pdf.worker.js');
 }

 var dynamicLoaderSupported = typeof requirejs !== 'undefined' && requirejs.load;
 fakeWorkerFilesLoader = useRequireEnsure ? function () {
   return new Promise(function (resolve, reject) {
     require.ensure([], function () {
       try {
         var worker;
         worker = require('./pdf.worker.js');
         resolve(worker.WorkerMessageHandler);
       } catch (ex) {
         reject(ex);
       }
     }, reject, 'pdfjsWorker');
   });
 } : dynamicLoaderSupported ? function () {
   return new Promise(function (resolve, reject) {
     requirejs(['pdfjs-dist/build/pdf.worker'], function (worker) {
       try {
         resolve(worker.WorkerMessageHandler);
       } catch (ex) {
         reject(ex);
       }
     }, reject);
   });
 } : null;

 if (!fallbackWorkerSrc && (typeof document === "undefined" ? "undefined" : _typeof(document)) === 'object' && 'currentScript' in document) {
   var pdfjsFilePath = document.currentScript && document.currentScript.src;

   if (pdfjsFilePath) {
     fallbackWorkerSrc = pdfjsFilePath.replace(/(\.(?:min\.)?js)(\?.*)?$/i, '.worker$1$2');
   }
 }
}
var createPDFNetworkStream;

function setPDFNetworkStreamFactory(pdfNetworkStreamFactory) {
 createPDFNetworkStream = pdfNetworkStreamFactory;
}

function getDocument(src) {
 var task = new PDFDocumentLoadingTask();
 var source;

 if (typeof src === 'string') {
   source = {
     url: src
   };
 } else if ((0, _util.isArrayBuffer)(src)) {
   source = {
     data: src
   };
 } else if (src instanceof PDFDataRangeTransport) {
   source = {
     range: src
   };
 } else {
   if (_typeof(src) !== 'object') {
     throw new Error('Invalid parameter in getDocument, ' + 'need either Uint8Array, string or a parameter object');
   }

   if (!src.url && !src.data && !src.range) {
     throw new Error('Invalid parameter object: need either .data, .range or .url');
   }

   source = src;
 }

 var params = Object.create(null);
 var rangeTransport = null,
     worker = null;

 for (var key in source) {
   if (key === 'url' && typeof window !== 'undefined') {
     params[key] = new _util.URL(source[key], window.location).href;
     continue;
   } else if (key === 'range') {
     rangeTransport = source[key];
     continue;
   } else if (key === 'worker') {
     worker = source[key];
     continue;
   } else if (key === 'data' && !(source[key] instanceof Uint8Array)) {
     var pdfBytes = source[key];

     if (typeof pdfBytes === 'string') {
       params[key] = (0, _util.stringToBytes)(pdfBytes);
     } else if (_typeof(pdfBytes) === 'object' && pdfBytes !== null && !isNaN(pdfBytes.length)) {
       params[key] = new Uint8Array(pdfBytes);
     } else if ((0, _util.isArrayBuffer)(pdfBytes)) {
       params[key] = new Uint8Array(pdfBytes);
     } else {
       throw new Error('Invalid PDF binary data: either typed array, ' + 'string or array-like object is expected in the ' + 'data property.');
     }

     continue;
   }

   params[key] = source[key];
 }

 params.rangeChunkSize = params.rangeChunkSize || DEFAULT_RANGE_CHUNK_SIZE;
 params.CMapReaderFactory = params.CMapReaderFactory || _display_utils.DOMCMapReaderFactory;
 params.ignoreErrors = params.stopAtErrors !== true;
 params.pdfBug = params.pdfBug === true;
 var NativeImageDecoderValues = Object.values(_util.NativeImageDecoding);

 if (params.nativeImageDecoderSupport === undefined || !NativeImageDecoderValues.includes(params.nativeImageDecoderSupport)) {
   params.nativeImageDecoderSupport = _api_compatibility.apiCompatibilityParams.nativeImageDecoderSupport || _util.NativeImageDecoding.DECODE;
 }

 if (!Number.isInteger(params.maxImageSize)) {
   params.maxImageSize = -1;
 }

 if (typeof params.isEvalSupported !== 'boolean') {
   params.isEvalSupported = true;
 }

 if (typeof params.disableFontFace !== 'boolean') {
   params.disableFontFace = _api_compatibility.apiCompatibilityParams.disableFontFace || false;
 }

 if (typeof params.disableRange !== 'boolean') {
   params.disableRange = false;
 }

 if (typeof params.disableStream !== 'boolean') {
   params.disableStream = false;
 }

 if (typeof params.disableAutoFetch !== 'boolean') {
   params.disableAutoFetch = false;
 }

 if (typeof params.disableCreateObjectURL !== 'boolean') {
   params.disableCreateObjectURL = _api_compatibility.apiCompatibilityParams.disableCreateObjectURL || false;
 }

 (0, _util.setVerbosityLevel)(params.verbosity);

 if (!worker) {
   var workerParams = {
     postMessageTransfers: params.postMessageTransfers,
     verbosity: params.verbosity,
     port: _worker_options.GlobalWorkerOptions.workerPort
   };
   worker = workerParams.port ? PDFWorker.fromPort(workerParams) : new PDFWorker(workerParams);
   task._worker = worker;
 }

 var docId = task.docId;
 worker.promise.then(function () {
   if (task.destroyed) {
     throw new Error('Loading aborted');
   }

   return _fetchDocument(worker, params, rangeTransport, docId).then(function (workerId) {
     if (task.destroyed) {
       throw new Error('Loading aborted');
     }

     var networkStream;

     if (rangeTransport) {
       networkStream = new _transport_stream.PDFDataTransportStream({
         length: params.length,
         initialData: params.initialData,
         progressiveDone: params.progressiveDone,
         disableRange: params.disableRange,
         disableStream: params.disableStream
       }, rangeTransport);
     } else if (!params.data) {
       networkStream = createPDFNetworkStream({
         url: params.url,
         length: params.length,
         httpHeaders: params.httpHeaders,
         withCredentials: params.withCredentials,
         rangeChunkSize: params.rangeChunkSize,
         disableRange: params.disableRange,
         disableStream: params.disableStream
       });
     }

     var messageHandler = new _message_handler.MessageHandler(docId, workerId, worker.port);
     messageHandler.postMessageTransfers = worker.postMessageTransfers;
     var transport = new WorkerTransport(messageHandler, task, networkStream, params);
     task._transport = transport;
     messageHandler.send('Ready', null);
   });
 })["catch"](task._capability.reject);
 return task;
}

function _fetchDocument(worker, source, pdfDataRangeTransport, docId) {
 if (worker.destroyed) {
   return Promise.reject(new Error('Worker was destroyed'));
 }

 if (pdfDataRangeTransport) {
   source.length = pdfDataRangeTransport.length;
   source.initialData = pdfDataRangeTransport.initialData;
   source.progressiveDone = pdfDataRangeTransport.progressiveDone;
 }

 return worker.messageHandler.sendWithPromise('GetDocRequest', {
   docId: docId,
   apiVersion: '2.2.228',
   source: {
     data: source.data,
     url: source.url,
     password: source.password,
     disableAutoFetch: source.disableAutoFetch,
     rangeChunkSize: source.rangeChunkSize,
     length: source.length
   },
   maxImageSize: source.maxImageSize,
   disableFontFace: source.disableFontFace,
   disableCreateObjectURL: source.disableCreateObjectURL,
   postMessageTransfers: worker.postMessageTransfers,
   docBaseUrl: source.docBaseUrl,
   nativeImageDecoderSupport: source.nativeImageDecoderSupport,
   ignoreErrors: source.ignoreErrors,
   isEvalSupported: source.isEvalSupported
 }).then(function (workerId) {
   if (worker.destroyed) {
     throw new Error('Worker was destroyed');
   }

   return workerId;
 });
}

var PDFDocumentLoadingTask = function PDFDocumentLoadingTaskClosure() {
 var nextDocumentId = 0;

 var PDFDocumentLoadingTask =
 /*#__PURE__*/
 function () {
   function PDFDocumentLoadingTask() {
     _classCallCheck(this, PDFDocumentLoadingTask);

     this._capability = (0, _util.createPromiseCapability)();
     this._transport = null;
     this._worker = null;
     this.docId = 'd' + nextDocumentId++;
     this.destroyed = false;
     this.onPassword = null;
     this.onProgress = null;
     this.onUnsupportedFeature = null;
   }

   _createClass(PDFDocumentLoadingTask, [{
     key: "destroy",
     value: function destroy() {
       var _this = this;

       this.destroyed = true;
       var transportDestroyed = !this._transport ? Promise.resolve() : this._transport.destroy();
       return transportDestroyed.then(function () {
         _this._transport = null;

         if (_this._worker) {
           _this._worker.destroy();

           _this._worker = null;
         }
       });
     }
   }, {
     key: "then",
     value: function then(onFulfilled, onRejected) {
       (0, _display_utils.deprecated)('PDFDocumentLoadingTask.then method, ' + 'use the `promise` getter instead.');
       return this.promise.then.apply(this.promise, arguments);
     }
   }, {
     key: "promise",
     get: function get() {
       return this._capability.promise;
     }
   }]);

   return PDFDocumentLoadingTask;
 }();

 return PDFDocumentLoadingTask;
}();

var PDFDataRangeTransport =
/*#__PURE__*/
function () {
 function PDFDataRangeTransport(length, initialData) {
   var progressiveDone = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

   _classCallCheck(this, PDFDataRangeTransport);

   this.length = length;
   this.initialData = initialData;
   this.progressiveDone = progressiveDone;
   this._rangeListeners = [];
   this._progressListeners = [];
   this._progressiveReadListeners = [];
   this._progressiveDoneListeners = [];
   this._readyCapability = (0, _util.createPromiseCapability)();
 }

 _createClass(PDFDataRangeTransport, [{
   key: "addRangeListener",
   value: function addRangeListener(listener) {
     this._rangeListeners.push(listener);
   }
 }, {
   key: "addProgressListener",
   value: function addProgressListener(listener) {
     this._progressListeners.push(listener);
   }
 }, {
   key: "addProgressiveReadListener",
   value: function addProgressiveReadListener(listener) {
     this._progressiveReadListeners.push(listener);
   }
 }, {
   key: "addProgressiveDoneListener",
   value: function addProgressiveDoneListener(listener) {
     this._progressiveDoneListeners.push(listener);
   }
 }, {
   key: "onDataRange",
   value: function onDataRange(begin, chunk) {
     var _iteratorNormalCompletion = true;
     var _didIteratorError = false;
     var _iteratorError = undefined;

     try {
       for (var _iterator = this._rangeListeners[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
         var listener = _step.value;
         listener(begin, chunk);
       }
     } catch (err) {
       _didIteratorError = true;
       _iteratorError = err;
     } finally {
       try {
         if (!_iteratorNormalCompletion && _iterator["return"] != null) {
           _iterator["return"]();
         }
       } finally {
         if (_didIteratorError) {
           throw _iteratorError;
         }
       }
     }
   }
 }, {
   key: "onDataProgress",
   value: function onDataProgress(loaded, total) {
     var _this2 = this;

     this._readyCapability.promise.then(function () {
       var _iteratorNormalCompletion2 = true;
       var _didIteratorError2 = false;
       var _iteratorError2 = undefined;

       try {
         for (var _iterator2 = _this2._progressListeners[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
           var listener = _step2.value;
           listener(loaded, total);
         }
       } catch (err) {
         _didIteratorError2 = true;
         _iteratorError2 = err;
       } finally {
         try {
           if (!_iteratorNormalCompletion2 && _iterator2["return"] != null) {
             _iterator2["return"]();
           }
         } finally {
           if (_didIteratorError2) {
             throw _iteratorError2;
           }
         }
       }
     });
   }
 }, {
   key: "onDataProgressiveRead",
   value: function onDataProgressiveRead(chunk) {
     var _this3 = this;

     this._readyCapability.promise.then(function () {
       var _iteratorNormalCompletion3 = true;
       var _didIteratorError3 = false;
       var _iteratorError3 = undefined;

       try {
         for (var _iterator3 = _this3._progressiveReadListeners[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
           var listener = _step3.value;
           listener(chunk);
         }
       } catch (err) {
         _didIteratorError3 = true;
         _iteratorError3 = err;
       } finally {
         try {
           if (!_iteratorNormalCompletion3 && _iterator3["return"] != null) {
             _iterator3["return"]();
           }
         } finally {
           if (_didIteratorError3) {
             throw _iteratorError3;
           }
         }
       }
     });
   }
 }, {
   key: "onDataProgressiveDone",
   value: function onDataProgressiveDone() {
     var _this4 = this;

     this._readyCapability.promise.then(function () {
       var _iteratorNormalCompletion4 = true;
       var _didIteratorError4 = false;
       var _iteratorError4 = undefined;

       try {
         for (var _iterator4 = _this4._progressiveDoneListeners[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
           var listener = _step4.value;
           listener();
         }
       } catch (err) {
         _didIteratorError4 = true;
         _iteratorError4 = err;
       } finally {
         try {
           if (!_iteratorNormalCompletion4 && _iterator4["return"] != null) {
             _iterator4["return"]();
           }
         } finally {
           if (_didIteratorError4) {
             throw _iteratorError4;
           }
         }
       }
     });
   }
 }, {
   key: "transportReady",
   value: function transportReady() {
     this._readyCapability.resolve();
   }
 }, {
   key: "requestDataRange",
   value: function requestDataRange(begin, end) {
     (0, _util.unreachable)('Abstract method PDFDataRangeTransport.requestDataRange');
   }
 }, {
   key: "abort",
   value: function abort() {}
 }]);

 return PDFDataRangeTransport;
}();

exports.PDFDataRangeTransport = PDFDataRangeTransport;

var PDFDocumentProxy =
/*#__PURE__*/
function () {
 function PDFDocumentProxy(pdfInfo, transport) {
   _classCallCheck(this, PDFDocumentProxy);

   this._pdfInfo = pdfInfo;
   this._transport = transport;
 }

 _createClass(PDFDocumentProxy, [{
   key: "getPage",
   value: function getPage(pageNumber) {
     return this._transport.getPage(pageNumber);
   }
 }, {
   key: "getPageIndex",
   value: function getPageIndex(ref) {
     return this._transport.getPageIndex(ref);
   }
 }, {
   key: "getDestinations",
   value: function getDestinations() {
     return this._transport.getDestinations();
   }
 }, {
   key: "getDestination",
   value: function getDestination(id) {
     return this._transport.getDestination(id);
   }
 }, {
   key: "getPageLabels",
   value: function getPageLabels() {
     return this._transport.getPageLabels();
   }
 }, {
   key: "getPageLayout",
   value: function getPageLayout() {
     return this._transport.getPageLayout();
   }
 }, {
   key: "getPageMode",
   value: function getPageMode() {
     return this._transport.getPageMode();
   }
 }, {
   key: "getViewerPreferences",
   value: function getViewerPreferences() {
     return this._transport.getViewerPreferences();
   }
 }, {
   key: "getOpenActionDestination",
   value: function getOpenActionDestination() {
     return this._transport.getOpenActionDestination();
   }
 }, {
   key: "getAttachments",
   value: function getAttachments() {
     return this._transport.getAttachments();
   }
 }, {
   key: "getJavaScript",
   value: function getJavaScript() {
     return this._transport.getJavaScript();
   }
 }, {
   key: "getOutline",
   value: function getOutline() {
     return this._transport.getOutline();
   }
 }, {
   key: "getPermissions",
   value: function getPermissions() {
     return this._transport.getPermissions();
   }
 }, {
   key: "getMetadata",
   value: function getMetadata() {
     return this._transport.getMetadata();
   }
 }, {
   key: "getData",
   value: function getData() {
     return this._transport.getData();
   }
 }, {
   key: "getDownloadInfo",
   value: function getDownloadInfo() {
     return this._transport.downloadInfoCapability.promise;
   }
 }, {
   key: "getStats",
   value: function getStats() {
     return this._transport.getStats();
   }
 }, {
   key: "cleanup",
   value: function cleanup() {
     this._transport.startCleanup();
   }
 }, {
   key: "destroy",
   value: function destroy() {
     return this.loadingTask.destroy();
   }
 }, {
   key: "numPages",
   get: function get() {
     return this._pdfInfo.numPages;
   }
 }, {
   key: "fingerprint",
   get: function get() {
     return this._pdfInfo.fingerprint;
   }
 }, {
   key: "loadingParams",
   get: function get() {
     return this._transport.loadingParams;
   }
 }, {
   key: "loadingTask",
   get: function get() {
     return this._transport.loadingTask;
   }
 }]);

 return PDFDocumentProxy;
}();

exports.PDFDocumentProxy = PDFDocumentProxy;

var PDFPageProxy =
/*#__PURE__*/
function () {
 function PDFPageProxy(pageIndex, pageInfo, transport) {
   var pdfBug = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

   _classCallCheck(this, PDFPageProxy);

   this.pageIndex = pageIndex;
   this._pageInfo = pageInfo;
   this._transport = transport;
   this._stats = pdfBug ? new _display_utils.StatTimer() : _display_utils.DummyStatTimer;
   this._pdfBug = pdfBug;
   this.commonObjs = transport.commonObjs;
   this.objs = new PDFObjects();
   this.cleanupAfterRender = false;
   this.pendingCleanup = false;
   this.intentStates = Object.create(null);
   this.destroyed = false;
 }

 _createClass(PDFPageProxy, [{
   key: "getViewport",
   value: function getViewport() {
     var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
         scale = _ref.scale,
         _ref$rotation = _ref.rotation,
         rotation = _ref$rotation === void 0 ? this.rotate : _ref$rotation,
         _ref$dontFlip = _ref.dontFlip,
         dontFlip = _ref$dontFlip === void 0 ? false : _ref$dontFlip;

     if (arguments.length > 1 || typeof arguments[0] === 'number') {
       (0, _display_utils.deprecated)('getViewport is called with obsolete arguments.');
       scale = arguments[0];
       rotation = typeof arguments[1] === 'number' ? arguments[1] : this.rotate;
       dontFlip = typeof arguments[2] === 'boolean' ? arguments[2] : false;
     }

     return new _display_utils.PageViewport({
       viewBox: this.view,
       scale: scale,
       rotation: rotation,
       dontFlip: dontFlip
     });
   }
 }, {
   key: "getAnnotations",
   value: function getAnnotations() {
     var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
         _ref2$intent = _ref2.intent,
         intent = _ref2$intent === void 0 ? null : _ref2$intent;

     if (!this.annotationsPromise || this.annotationsIntent !== intent) {
       this.annotationsPromise = this._transport.getAnnotations(this.pageIndex, intent);
       this.annotationsIntent = intent;
     }

     return this.annotationsPromise;
   }
 }, {
   key: "render",
   value: function render(_ref3) {
     var _this5 = this;

     var canvasContext = _ref3.canvasContext,
         viewport = _ref3.viewport,
         _ref3$intent = _ref3.intent,
         intent = _ref3$intent === void 0 ? 'display' : _ref3$intent,
         _ref3$enableWebGL = _ref3.enableWebGL,
         enableWebGL = _ref3$enableWebGL === void 0 ? false : _ref3$enableWebGL,
         _ref3$renderInteracti = _ref3.renderInteractiveForms,
         renderInteractiveForms = _ref3$renderInteracti === void 0 ? false : _ref3$renderInteracti,
         _ref3$transform = _ref3.transform,
         transform = _ref3$transform === void 0 ? null : _ref3$transform,
         _ref3$imageLayer = _ref3.imageLayer,
         imageLayer = _ref3$imageLayer === void 0 ? null : _ref3$imageLayer,
         _ref3$canvasFactory = _ref3.canvasFactory,
         canvasFactory = _ref3$canvasFactory === void 0 ? null : _ref3$canvasFactory,
         _ref3$background = _ref3.background,
         background = _ref3$background === void 0 ? null : _ref3$background;
     var stats = this._stats;
     stats.time('Overall');
     this.pendingCleanup = false;
     var renderingIntent = intent === 'print' ? 'print' : 'display';
     var canvasFactoryInstance = canvasFactory || new _display_utils.DOMCanvasFactory();
     var webGLContext = new _webgl.WebGLContext({
       enable: enableWebGL
     });

     if (!this.intentStates[renderingIntent]) {
       this.intentStates[renderingIntent] = Object.create(null);
     }

     var intentState = this.intentStates[renderingIntent];

     if (!intentState.displayReadyCapability) {
       intentState.receivingOperatorList = true;
       intentState.displayReadyCapability = (0, _util.createPromiseCapability)();
       intentState.operatorList = {
         fnArray: [],
         argsArray: [],
         lastChunk: false
       };
       stats.time('Page Request');

       this._transport.messageHandler.send('RenderPageRequest', {
         pageIndex: this.pageNumber - 1,
         intent: renderingIntent,
         renderInteractiveForms: renderInteractiveForms === true
       });
     }

     var complete = function complete(error) {
       var i = intentState.renderTasks.indexOf(internalRenderTask);

       if (i >= 0) {
         intentState.renderTasks.splice(i, 1);
       }

       if (_this5.cleanupAfterRender || renderingIntent === 'print') {
         _this5.pendingCleanup = true;
       }

       _this5._tryCleanup();

       if (error) {
         internalRenderTask.capability.reject(error);
       } else {
         internalRenderTask.capability.resolve();
       }

       stats.timeEnd('Rendering');
       stats.timeEnd('Overall');
     };

     var internalRenderTask = new InternalRenderTask({
       callback: complete,
       params: {
         canvasContext: canvasContext,
         viewport: viewport,
         transform: transform,
         imageLayer: imageLayer,
         background: background
       },
       objs: this.objs,
       commonObjs: this.commonObjs,
       operatorList: intentState.operatorList,
       pageNumber: this.pageNumber,
       canvasFactory: canvasFactoryInstance,
       webGLContext: webGLContext,
       useRequestAnimationFrame: renderingIntent !== 'print',
       pdfBug: this._pdfBug
     });

     if (!intentState.renderTasks) {
       intentState.renderTasks = [];
     }

     intentState.renderTasks.push(internalRenderTask);
     var renderTask = internalRenderTask.task;
     intentState.displayReadyCapability.promise.then(function (transparency) {
       if (_this5.pendingCleanup) {
         complete();
         return;
       }

       stats.time('Rendering');
       internalRenderTask.initializeGraphics(transparency);
       internalRenderTask.operatorListChanged();
     })["catch"](complete);
     return renderTask;
   }
 }, {
   key: "getOperatorList",
   value: function getOperatorList() {
     function operatorListChanged() {
       if (intentState.operatorList.lastChunk) {
         intentState.opListReadCapability.resolve(intentState.operatorList);
         var i = intentState.renderTasks.indexOf(opListTask);

         if (i >= 0) {
           intentState.renderTasks.splice(i, 1);
         }
       }
     }

     var renderingIntent = 'oplist';

     if (!this.intentStates[renderingIntent]) {
       this.intentStates[renderingIntent] = Object.create(null);
     }

     var intentState = this.intentStates[renderingIntent];
     var opListTask;

     if (!intentState.opListReadCapability) {
       opListTask = {};
       opListTask.operatorListChanged = operatorListChanged;
       intentState.receivingOperatorList = true;
       intentState.opListReadCapability = (0, _util.createPromiseCapability)();
       intentState.renderTasks = [];
       intentState.renderTasks.push(opListTask);
       intentState.operatorList = {
         fnArray: [],
         argsArray: [],
         lastChunk: false
       };

       this._stats.time('Page Request');

       this._transport.messageHandler.send('RenderPageRequest', {
         pageIndex: this.pageIndex,
         intent: renderingIntent
       });
     }

     return intentState.opListReadCapability.promise;
   }
 }, {
   key: "streamTextContent",
   value: function streamTextContent() {
     var _ref4 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
         _ref4$normalizeWhites = _ref4.normalizeWhitespace,
         normalizeWhitespace = _ref4$normalizeWhites === void 0 ? false : _ref4$normalizeWhites,
         _ref4$disableCombineT = _ref4.disableCombineTextItems,
         disableCombineTextItems = _ref4$disableCombineT === void 0 ? false : _ref4$disableCombineT;

     var TEXT_CONTENT_CHUNK_SIZE = 100;
     return this._transport.messageHandler.sendWithStream('GetTextContent', {
       pageIndex: this.pageNumber - 1,
       normalizeWhitespace: normalizeWhitespace === true,
       combineTextItems: disableCombineTextItems !== true
     }, {
       highWaterMark: TEXT_CONTENT_CHUNK_SIZE,
       size: function size(textContent) {
         return textContent.items.length;
       }
     });
   }
 }, {
   key: "getTextContent",
   value: function getTextContent() {
     var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
     var readableStream = this.streamTextContent(params);
     return new Promise(function (resolve, reject) {
       function pump() {
         reader.read().then(function (_ref5) {
           var _textContent$items;

           var value = _ref5.value,
               done = _ref5.done;

           if (done) {
             resolve(textContent);
             return;
           }

           Object.assign(textContent.styles, value.styles);

           (_textContent$items = textContent.items).push.apply(_textContent$items, _toConsumableArray(value.items));

           pump();
         }, reject);
       }

       var reader = readableStream.getReader();
       var textContent = {
         items: [],
         styles: Object.create(null)
       };
       pump();
     });
   }
 }, {
   key: "_destroy",
   value: function _destroy() {
     this.destroyed = true;
     this._transport.pageCache[this.pageIndex] = null;
     var waitOn = [];
     Object.keys(this.intentStates).forEach(function (intent) {
       if (intent === 'oplist') {
         return;
       }

       var intentState = this.intentStates[intent];
       intentState.renderTasks.forEach(function (renderTask) {
         var renderCompleted = renderTask.capability.promise["catch"](function () {});
         waitOn.push(renderCompleted);
         renderTask.cancel();
       });
     }, this);
     this.objs.clear();
     this.annotationsPromise = null;
     this.pendingCleanup = false;
     return Promise.all(waitOn);
   }
 }, {
   key: "cleanup",
   value: function cleanup() {
     var resetStats = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
     this.pendingCleanup = true;

     this._tryCleanup(resetStats);
   }
 }, {
   key: "_tryCleanup",
   value: function _tryCleanup() {
     var resetStats = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

     if (!this.pendingCleanup || Object.keys(this.intentStates).some(function (intent) {
       var intentState = this.intentStates[intent];
       return intentState.renderTasks.length !== 0 || intentState.receivingOperatorList;
     }, this)) {
       return;
     }

     Object.keys(this.intentStates).forEach(function (intent) {
       delete this.intentStates[intent];
     }, this);
     this.objs.clear();
     this.annotationsPromise = null;

     if (resetStats && this._stats instanceof _display_utils.StatTimer) {
       this._stats = new _display_utils.StatTimer();
     }

     this.pendingCleanup = false;
   }
 }, {
   key: "_startRenderPage",
   value: function _startRenderPage(transparency, intent) {
     var intentState = this.intentStates[intent];

     if (intentState.displayReadyCapability) {
       intentState.displayReadyCapability.resolve(transparency);
     }
   }
 }, {
   key: "_renderPageChunk",
   value: function _renderPageChunk(operatorListChunk, intent) {
     var intentState = this.intentStates[intent];

     for (var i = 0, ii = operatorListChunk.length; i < ii; i++) {
       intentState.operatorList.fnArray.push(operatorListChunk.fnArray[i]);
       intentState.operatorList.argsArray.push(operatorListChunk.argsArray[i]);
     }

     intentState.operatorList.lastChunk = operatorListChunk.lastChunk;

     for (var _i = 0; _i < intentState.renderTasks.length; _i++) {
       intentState.renderTasks[_i].operatorListChanged();
     }

     if (operatorListChunk.lastChunk) {
       intentState.receivingOperatorList = false;

       this._tryCleanup();
     }
   }
 }, {
   key: "pageNumber",
   get: function get() {
     return this.pageIndex + 1;
   }
 }, {
   key: "rotate",
   get: function get() {
     return this._pageInfo.rotate;
   }
 }, {
   key: "ref",
   get: function get() {
     return this._pageInfo.ref;
   }
 }, {
   key: "userUnit",
   get: function get() {
     return this._pageInfo.userUnit;
   }
 }, {
   key: "view",
   get: function get() {
     return this._pageInfo.view;
   }
 }, {
   key: "stats",
   get: function get() {
     return this._stats instanceof _display_utils.StatTimer ? this._stats : null;
   }
 }]);

 return PDFPageProxy;
}();

exports.PDFPageProxy = PDFPageProxy;

var LoopbackPort =
/*#__PURE__*/
function () {
 function LoopbackPort() {
   var defer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

   _classCallCheck(this, LoopbackPort);

   this._listeners = [];
   this._defer = defer;
   this._deferred = Promise.resolve(undefined);
 }

 _createClass(LoopbackPort, [{
   key: "postMessage",
   value: function postMessage(obj, transfers) {
     var _this6 = this;

     function cloneValue(value) {
       if (_typeof(value) !== 'object' || value === null) {
         return value;
       }

       if (cloned.has(value)) {
         return cloned.get(value);
       }

       var buffer, result;

       if ((buffer = value.buffer) && (0, _util.isArrayBuffer)(buffer)) {
         var transferable = transfers && transfers.includes(buffer);

         if (value === buffer) {
           result = value;
         } else if (transferable) {
           result = new value.constructor(buffer, value.byteOffset, value.byteLength);
         } else {
           result = new value.constructor(value);
         }

         cloned.set(value, result);
         return result;
       }

       result = Array.isArray(value) ? [] : {};
       cloned.set(value, result);

       for (var i in value) {
         var desc = void 0,
             p = value;

         while (!(desc = Object.getOwnPropertyDescriptor(p, i))) {
           p = Object.getPrototypeOf(p);
         }

         if (typeof desc.value === 'undefined' || typeof desc.value === 'function') {
           continue;
         }

         result[i] = cloneValue(desc.value);
       }

       return result;
     }

     if (!this._defer) {
       this._listeners.forEach(function (listener) {
         listener.call(this, {
           data: obj
         });
       }, this);

       return;
     }

     var cloned = new WeakMap();
     var e = {
       data: cloneValue(obj)
     };

     this._deferred.then(function () {
       _this6._listeners.forEach(function (listener) {
         listener.call(this, e);
       }, _this6);
     });
   }
 }, {
   key: "addEventListener",
   value: function addEventListener(name, listener) {
     this._listeners.push(listener);
   }
 }, {
   key: "removeEventListener",
   value: function removeEventListener(name, listener) {
     var i = this._listeners.indexOf(listener);

     this._listeners.splice(i, 1);
   }
 }, {
   key: "terminate",
   value: function terminate() {
     this._listeners.length = 0;
   }
 }]);

 return LoopbackPort;
}();

exports.LoopbackPort = LoopbackPort;

var PDFWorker = function PDFWorkerClosure() {
 var pdfWorkerPorts = new WeakMap();
 var nextFakeWorkerId = 0;
 var fakeWorkerFilesLoadedCapability;

 function _getWorkerSrc() {
   if (_worker_options.GlobalWorkerOptions.workerSrc) {
     return _worker_options.GlobalWorkerOptions.workerSrc;
   }

   if (typeof fallbackWorkerSrc !== 'undefined') {
     return fallbackWorkerSrc;
   }

   throw new Error('No "GlobalWorkerOptions.workerSrc" specified.');
 }

 function getMainThreadWorkerMessageHandler() {
   try {
     if (typeof window !== 'undefined') {
       return window.pdfjsWorker && window.pdfjsWorker.WorkerMessageHandler;
     }
   } catch (ex) {}

   return null;
 }

 function setupFakeWorkerGlobal() {
   if (fakeWorkerFilesLoadedCapability) {
     return fakeWorkerFilesLoadedCapability.promise;
   }

   fakeWorkerFilesLoadedCapability = (0, _util.createPromiseCapability)();
   var mainWorkerMessageHandler = getMainThreadWorkerMessageHandler();

   if (mainWorkerMessageHandler) {
     fakeWorkerFilesLoadedCapability.resolve(mainWorkerMessageHandler);
     return fakeWorkerFilesLoadedCapability.promise;
   }

   var loader = fakeWorkerFilesLoader || function () {
     return (0, _display_utils.loadScript)(_getWorkerSrc()).then(function () {
       return window.pdfjsWorker.WorkerMessageHandler;
     });
   };

   loader().then(fakeWorkerFilesLoadedCapability.resolve, fakeWorkerFilesLoadedCapability.reject);
   return fakeWorkerFilesLoadedCapability.promise;
 }

 function createCDNWrapper(url) {
   var wrapper = 'importScripts(\'' + url + '\');';
   return _util.URL.createObjectURL(new Blob([wrapper]));
 }

 var PDFWorker =
 /*#__PURE__*/
 function () {
   function PDFWorker() {
     var _ref6 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
         _ref6$name = _ref6.name,
         name = _ref6$name === void 0 ? null : _ref6$name,
         _ref6$port = _ref6.port,
         port = _ref6$port === void 0 ? null : _ref6$port,
         _ref6$postMessageTran = _ref6.postMessageTransfers,
         postMessageTransfers = _ref6$postMessageTran === void 0 ? true : _ref6$postMessageTran,
         _ref6$verbosity = _ref6.verbosity,
         verbosity = _ref6$verbosity === void 0 ? (0, _util.getVerbosityLevel)() : _ref6$verbosity;

     _classCallCheck(this, PDFWorker);

     if (port && pdfWorkerPorts.has(port)) {
       throw new Error('Cannot use more than one PDFWorker per port');
     }

     this.name = name;
     this.destroyed = false;
     this.postMessageTransfers = postMessageTransfers !== false;
     this.verbosity = verbosity;
     this._readyCapability = (0, _util.createPromiseCapability)();
     this._port = null;
     this._webWorker = null;
     this._messageHandler = null;

     if (port) {
       pdfWorkerPorts.set(port, this);

       this._initializeFromPort(port);

       return;
     }

     this._initialize();
   }

   _createClass(PDFWorker, [{
     key: "_initializeFromPort",
     value: function _initializeFromPort(port) {
       this._port = port;
       this._messageHandler = new _message_handler.MessageHandler('main', 'worker', port);

       this._messageHandler.on('ready', function () {});

       this._readyCapability.resolve();
     }
   }, {
     key: "_initialize",
     value: function _initialize() {
       var _this7 = this;

       if (typeof Worker !== 'undefined' && !isWorkerDisabled && !getMainThreadWorkerMessageHandler()) {
         var workerSrc = _getWorkerSrc();

         try {
           if (!(0, _util.isSameOrigin)(window.location.href, workerSrc)) {
             workerSrc = createCDNWrapper(new _util.URL(workerSrc, window.location).href);
           }

           var worker = new Worker(workerSrc);
           var messageHandler = new _message_handler.MessageHandler('main', 'worker', worker);

           var terminateEarly = function terminateEarly() {
             worker.removeEventListener('error', onWorkerError);
             messageHandler.destroy();
             worker.terminate();

             if (_this7.destroyed) {
               _this7._readyCapability.reject(new Error('Worker was destroyed'));
             } else {
               _this7._setupFakeWorker();
             }
           };

           var onWorkerError = function onWorkerError() {
             if (!_this7._webWorker) {
               terminateEarly();
             }
           };

           worker.addEventListener('error', onWorkerError);
           messageHandler.on('test', function (data) {
             worker.removeEventListener('error', onWorkerError);

             if (_this7.destroyed) {
               terminateEarly();
               return;
             }

             if (data && data.supportTypedArray) {
               _this7._messageHandler = messageHandler;
               _this7._port = worker;
               _this7._webWorker = worker;

               if (!data.supportTransfers) {
                 _this7.postMessageTransfers = false;
               }

               _this7._readyCapability.resolve();

               messageHandler.send('configure', {
                 verbosity: _this7.verbosity
               });
             } else {
               _this7._setupFakeWorker();

               messageHandler.destroy();
               worker.terminate();
             }
           });
           messageHandler.on('ready', function (data) {
             worker.removeEventListener('error', onWorkerError);

             if (_this7.destroyed) {
               terminateEarly();
               return;
             }

             try {
               sendTest();
             } catch (e) {
               _this7._setupFakeWorker();
             }
           });

           var sendTest = function sendTest() {
             var testObj = new Uint8Array([_this7.postMessageTransfers ? 255 : 0]);

             try {
               messageHandler.send('test', testObj, [testObj.buffer]);
             } catch (ex) {
               (0, _util.info)('Cannot use postMessage transfers');
               testObj[0] = 0;
               messageHandler.send('test', testObj);
             }
           };

           sendTest();
           return;
         } catch (e) {
           (0, _util.info)('The worker has been disabled.');
         }
       }

       this._setupFakeWorker();
     }
   }, {
     key: "_setupFakeWorker",
     value: function _setupFakeWorker() {
       var _this8 = this;

       if (!isWorkerDisabled) {
         (0, _util.warn)('Setting up fake worker.');
         isWorkerDisabled = true;
       }

       setupFakeWorkerGlobal().then(function (WorkerMessageHandler) {
         if (_this8.destroyed) {
           _this8._readyCapability.reject(new Error('Worker was destroyed'));

           return;
         }

         var port = new LoopbackPort();
         _this8._port = port;
         var id = 'fake' + nextFakeWorkerId++;
         var workerHandler = new _message_handler.MessageHandler(id + '_worker', id, port);
         WorkerMessageHandler.setup(workerHandler, port);
         var messageHandler = new _message_handler.MessageHandler(id, id + '_worker', port);
         _this8._messageHandler = messageHandler;

         _this8._readyCapability.resolve();
       })["catch"](function (reason) {
         _this8._readyCapability.reject(new Error("Setting up fake worker failed: \"".concat(reason.message, "\".")));
       });
     }
   }, {
     key: "destroy",
     value: function destroy() {
       this.destroyed = true;

       if (this._webWorker) {
         this._webWorker.terminate();

         this._webWorker = null;
       }

       pdfWorkerPorts["delete"](this._port);
       this._port = null;

       if (this._messageHandler) {
         this._messageHandler.destroy();

         this._messageHandler = null;
       }
     }
   }, {
     key: "promise",
     get: function get() {
       return this._readyCapability.promise;
     }
   }, {
     key: "port",
     get: function get() {
       return this._port;
     }
   }, {
     key: "messageHandler",
     get: function get() {
       return this._messageHandler;
     }
   }], [{
     key: "fromPort",
     value: function fromPort(params) {
       if (!params || !params.port) {
         throw new Error('PDFWorker.fromPort - invalid method signature.');
       }

       if (pdfWorkerPorts.has(params.port)) {
         return pdfWorkerPorts.get(params.port);
       }

       return new PDFWorker(params);
     }
   }, {
     key: "getWorkerSrc",
     value: function getWorkerSrc() {
       return _getWorkerSrc();
     }
   }]);

   return PDFWorker;
 }();

 return PDFWorker;
}();

exports.PDFWorker = PDFWorker;

var WorkerTransport =
/*#__PURE__*/
function () {
 function WorkerTransport(messageHandler, loadingTask, networkStream, params) {
   _classCallCheck(this, WorkerTransport);

   this.messageHandler = messageHandler;
   this.loadingTask = loadingTask;
   this.commonObjs = new PDFObjects();
   this.fontLoader = new _font_loader.FontLoader({
     docId: loadingTask.docId,
     onUnsupportedFeature: this._onUnsupportedFeature.bind(this)
   });
   this._params = params;
   this.CMapReaderFactory = new params.CMapReaderFactory({
     baseUrl: params.cMapUrl,
     isCompressed: params.cMapPacked
   });
   this.destroyed = false;
   this.destroyCapability = null;
   this._passwordCapability = null;
   this._networkStream = networkStream;
   this._fullReader = null;
   this._lastProgress = null;
   this.pageCache = [];
   this.pagePromises = [];
   this.downloadInfoCapability = (0, _util.createPromiseCapability)();
   this.setupMessageHandler();
 }

 _createClass(WorkerTransport, [{
   key: "destroy",
   value: function destroy() {
     var _this9 = this;

     if (this.destroyCapability) {
       return this.destroyCapability.promise;
     }

     this.destroyed = true;
     this.destroyCapability = (0, _util.createPromiseCapability)();

     if (this._passwordCapability) {
       this._passwordCapability.reject(new Error('Worker was destroyed during onPassword callback'));
     }

     var waitOn = [];
     this.pageCache.forEach(function (page) {
       if (page) {
         waitOn.push(page._destroy());
       }
     });
     this.pageCache.length = 0;
     this.pagePromises.length = 0;
     var terminated = this.messageHandler.sendWithPromise('Terminate', null);
     waitOn.push(terminated);
     Promise.all(waitOn).then(function () {
       _this9.fontLoader.clear();

       if (_this9._networkStream) {
         _this9._networkStream.cancelAllRequests();
       }

       if (_this9.messageHandler) {
         _this9.messageHandler.destroy();

         _this9.messageHandler = null;
       }

       _this9.destroyCapability.resolve();
     }, this.destroyCapability.reject);
     return this.destroyCapability.promise;
   }
 }, {
   key: "setupMessageHandler",
   value: function setupMessageHandler() {
     var messageHandler = this.messageHandler,
         loadingTask = this.loadingTask;
     messageHandler.on('GetReader', function (data, sink) {
       var _this10 = this;

       (0, _util.assert)(this._networkStream);
       this._fullReader = this._networkStream.getFullReader();

       this._fullReader.onProgress = function (evt) {
         _this10._lastProgress = {
           loaded: evt.loaded,
           total: evt.total
         };
       };

       sink.onPull = function () {
         _this10._fullReader.read().then(function (_ref7) {
           var value = _ref7.value,
               done = _ref7.done;

           if (done) {
             sink.close();
             return;
           }

           (0, _util.assert)((0, _util.isArrayBuffer)(value));
           sink.enqueue(new Uint8Array(value), 1, [value]);
         })["catch"](function (reason) {
           sink.error(reason);
         });
       };

       sink.onCancel = function (reason) {
         _this10._fullReader.cancel(reason);
       };
     }, this);
     messageHandler.on('ReaderHeadersReady', function (data) {
       var _this11 = this;

       var headersCapability = (0, _util.createPromiseCapability)();
       var fullReader = this._fullReader;
       fullReader.headersReady.then(function () {
         if (!fullReader.isStreamingSupported || !fullReader.isRangeSupported) {
           if (_this11._lastProgress && loadingTask.onProgress) {
             loadingTask.onProgress(_this11._lastProgress);
           }

           fullReader.onProgress = function (evt) {
             if (loadingTask.onProgress) {
               loadingTask.onProgress({
                 loaded: evt.loaded,
                 total: evt.total
               });
             }
           };
         }

         headersCapability.resolve({
           isStreamingSupported: fullReader.isStreamingSupported,
           isRangeSupported: fullReader.isRangeSupported,
           contentLength: fullReader.contentLength
         });
       }, headersCapability.reject);
       return headersCapability.promise;
     }, this);
     messageHandler.on('GetRangeReader', function (data, sink) {
       (0, _util.assert)(this._networkStream);

       var rangeReader = this._networkStream.getRangeReader(data.begin, data.end);

       if (!rangeReader) {
         sink.close();
         return;
       }

       sink.onPull = function () {
         rangeReader.read().then(function (_ref8) {
           var value = _ref8.value,
               done = _ref8.done;

           if (done) {
             sink.close();
             return;
           }

           (0, _util.assert)((0, _util.isArrayBuffer)(value));
           sink.enqueue(new Uint8Array(value), 1, [value]);
         })["catch"](function (reason) {
           sink.error(reason);
         });
       };

       sink.onCancel = function (reason) {
         rangeReader.cancel(reason);
       };
     }, this);
     messageHandler.on('GetDoc', function (_ref9) {
       var pdfInfo = _ref9.pdfInfo;
       this._numPages = pdfInfo.numPages;

       loadingTask._capability.resolve(new PDFDocumentProxy(pdfInfo, this));
     }, this);
     messageHandler.on('PasswordRequest', function (exception) {
       var _this12 = this;

       this._passwordCapability = (0, _util.createPromiseCapability)();

       if (loadingTask.onPassword) {
         var updatePassword = function updatePassword(password) {
           _this12._passwordCapability.resolve({
             password: password
           });
         };

         try {
           loadingTask.onPassword(updatePassword, exception.code);
         } catch (ex) {
           this._passwordCapability.reject(ex);
         }
       } else {
         this._passwordCapability.reject(new _util.PasswordException(exception.message, exception.code));
       }

       return this._passwordCapability.promise;
     }, this);
     messageHandler.on('PasswordException', function (exception) {
       loadingTask._capability.reject(new _util.PasswordException(exception.message, exception.code));
     }, this);
     messageHandler.on('InvalidPDF', function (exception) {
       loadingTask._capability.reject(new _util.InvalidPDFException(exception.message));
     }, this);
     messageHandler.on('MissingPDF', function (exception) {
       loadingTask._capability.reject(new _util.MissingPDFException(exception.message));
     }, this);
     messageHandler.on('UnexpectedResponse', function (exception) {
       loadingTask._capability.reject(new _util.UnexpectedResponseException(exception.message, exception.status));
     }, this);
     messageHandler.on('UnknownError', function (exception) {
       loadingTask._capability.reject(new _util.UnknownErrorException(exception.message, exception.details));
     }, this);
     messageHandler.on('DataLoaded', function (data) {
       if (loadingTask.onProgress) {
         loadingTask.onProgress({
           loaded: data.length,
           total: data.length
         });
       }

       this.downloadInfoCapability.resolve(data);
     }, this);
     messageHandler.on('StartRenderPage', function (data) {
       if (this.destroyed) {
         return;
       }

       var page = this.pageCache[data.pageIndex];

       page._stats.timeEnd('Page Request');

       page._startRenderPage(data.transparency, data.intent);
     }, this);
     messageHandler.on('RenderPageChunk', function (data) {
       if (this.destroyed) {
         return;
       }

       var page = this.pageCache[data.pageIndex];

       page._renderPageChunk(data.operatorList, data.intent);
     }, this);
     messageHandler.on('commonobj', function (data) {
       var _this13 = this;

       if (this.destroyed) {
         return;
       }

       var _data = _slicedToArray(data, 3),
           id = _data[0],
           type = _data[1],
           exportedData = _data[2];

       if (this.commonObjs.has(id)) {
         return;
       }

       switch (type) {
         case 'Font':
           var params = this._params;

           if ('error' in exportedData) {
             var exportedError = exportedData.error;
             (0, _util.warn)("Error during font loading: ".concat(exportedError));
             this.commonObjs.resolve(id, exportedError);
             break;
           }

           var fontRegistry = null;

           if (params.pdfBug && _global_scope["default"].FontInspector && _global_scope["default"].FontInspector.enabled) {
             fontRegistry = {
               registerFont: function registerFont(font, url) {
                 _global_scope["default"]['FontInspector'].fontAdded(font, url);
               }
             };
           }

           var font = new _font_loader.FontFaceObject(exportedData, {
             isEvalSupported: params.isEvalSupported,
             disableFontFace: params.disableFontFace,
             ignoreErrors: params.ignoreErrors,
             onUnsupportedFeature: this._onUnsupportedFeature.bind(this),
             fontRegistry: fontRegistry
           });
           this.fontLoader.bind(font).then(function () {
             _this13.commonObjs.resolve(id, font);
           }, function (reason) {
             messageHandler.sendWithPromise('FontFallback', {
               id: id
             })["finally"](function () {
               _this13.commonObjs.resolve(id, font);
             });
           });
           break;

         case 'FontPath':
         case 'FontType3Res':
           this.commonObjs.resolve(id, exportedData);
           break;

         default:
           throw new Error("Got unknown common object type ".concat(type));
       }
     }, this);
     messageHandler.on('obj', function (data) {
       if (this.destroyed) {
         return undefined;
       }

       var _data2 = _slicedToArray(data, 4),
           id = _data2[0],
           pageIndex = _data2[1],
           type = _data2[2],
           imageData = _data2[3];

       var pageProxy = this.pageCache[pageIndex];

       if (pageProxy.objs.has(id)) {
         return undefined;
       }

       switch (type) {
         case 'JpegStream':
           return new Promise(function (resolve, reject) {
             var img = new Image();

             img.onload = function () {
               resolve(img);
             };

             img.onerror = function () {
               reject(new Error('Error during JPEG image loading'));
               (0, _display_utils.releaseImageResources)(img);
             };

             img.src = imageData;
           }).then(function (img) {
             pageProxy.objs.resolve(id, img);
           });

         case 'Image':
           pageProxy.objs.resolve(id, imageData);
           var MAX_IMAGE_SIZE_TO_STORE = 8000000;

           if (imageData && 'data' in imageData && imageData.data.length > MAX_IMAGE_SIZE_TO_STORE) {
             pageProxy.cleanupAfterRender = true;
           }

           break;

         default:
           throw new Error("Got unknown object type ".concat(type));
       }

       return undefined;
     }, this);
     messageHandler.on('DocProgress', function (data) {
       if (this.destroyed) {
         return;
       }

       if (loadingTask.onProgress) {
         loadingTask.onProgress({
           loaded: data.loaded,
           total: data.total
         });
       }
     }, this);
     messageHandler.on('PageError', function (data) {
       if (this.destroyed) {
         return;
       }

       var page = this.pageCache[data.pageIndex];
       var intentState = page.intentStates[data.intent];

       if (intentState.displayReadyCapability) {
         intentState.displayReadyCapability.reject(new Error(data.error));
       } else {
         throw new Error(data.error);
       }

       if (intentState.operatorList) {
         intentState.operatorList.lastChunk = true;

         for (var i = 0; i < intentState.renderTasks.length; i++) {
           intentState.renderTasks[i].operatorListChanged();
         }
       }
     }, this);
     messageHandler.on('UnsupportedFeature', this._onUnsupportedFeature, this);
     messageHandler.on('JpegDecode', function (data) {
       if (this.destroyed) {
         return Promise.reject(new Error('Worker was destroyed'));
       }

       if (typeof document === 'undefined') {
         return Promise.reject(new Error('"document" is not defined.'));
       }

       var _data3 = _slicedToArray(data, 2),
           imageUrl = _data3[0],
           components = _data3[1];

       if (components !== 3 && components !== 1) {
         return Promise.reject(new Error('Only 3 components or 1 component can be returned'));
       }

       return new Promise(function (resolve, reject) {
         var img = new Image();

         img.onload = function () {
           var width = img.width,
               height = img.height;
           var size = width * height;
           var rgbaLength = size * 4;
           var buf = new Uint8ClampedArray(size * components);
           var tmpCanvas = document.createElement('canvas');
           tmpCanvas.width = width;
           tmpCanvas.height = height;
           var tmpCtx = tmpCanvas.getContext('2d');
           tmpCtx.drawImage(img, 0, 0);
           var data = tmpCtx.getImageData(0, 0, width, height).data;

           if (components === 3) {
             for (var i = 0, j = 0; i < rgbaLength; i += 4, j += 3) {
               buf[j] = data[i];
               buf[j + 1] = data[i + 1];
               buf[j + 2] = data[i + 2];
             }
           } else if (components === 1) {
             for (var _i2 = 0, _j = 0; _i2 < rgbaLength; _i2 += 4, _j++) {
               buf[_j] = data[_i2];
             }
           }

           resolve({
             data: buf,
             width: width,
             height: height
           });
           (0, _display_utils.releaseImageResources)(img);
           tmpCanvas.width = 0;
           tmpCanvas.height = 0;
           tmpCanvas = null;
           tmpCtx = null;
         };

         img.onerror = function () {
           reject(new Error('JpegDecode failed to load image'));
           (0, _display_utils.releaseImageResources)(img);
         };

         img.src = imageUrl;
       });
     }, this);
     messageHandler.on('FetchBuiltInCMap', function (data) {
       if (this.destroyed) {
         return Promise.reject(new Error('Worker was destroyed'));
       }

       return this.CMapReaderFactory.fetch({
         name: data.name
       });
     }, this);
   }
 }, {
   key: "_onUnsupportedFeature",
   value: function _onUnsupportedFeature(_ref10) {
     var featureId = _ref10.featureId;

     if (this.destroyed) {
       return;
     }

     if (this.loadingTask.onUnsupportedFeature) {
       this.loadingTask.onUnsupportedFeature(featureId);
     }
   }
 }, {
   key: "getData",
   value: function getData() {
     return this.messageHandler.sendWithPromise('GetData', null);
   }
 }, {
   key: "getPage",
   value: function getPage(pageNumber) {
     var _this14 = this;

     if (!Number.isInteger(pageNumber) || pageNumber <= 0 || pageNumber > this._numPages) {
       return Promise.reject(new Error('Invalid page request'));
     }

     var pageIndex = pageNumber - 1;

     if (pageIndex in this.pagePromises) {
       return this.pagePromises[pageIndex];
     }

     var promise = this.messageHandler.sendWithPromise('GetPage', {
       pageIndex: pageIndex
     }).then(function (pageInfo) {
       if (_this14.destroyed) {
         throw new Error('Transport destroyed');
       }

       var page = new PDFPageProxy(pageIndex, pageInfo, _this14, _this14._params.pdfBug);
       _this14.pageCache[pageIndex] = page;
       return page;
     });
     this.pagePromises[pageIndex] = promise;
     return promise;
   }
 }, {
   key: "getPageIndex",
   value: function getPageIndex(ref) {
     return this.messageHandler.sendWithPromise('GetPageIndex', {
       ref: ref
     })["catch"](function (reason) {
       return Promise.reject(new Error(reason));
     });
   }
 }, {
   key: "getAnnotations",
   value: function getAnnotations(pageIndex, intent) {
     return this.messageHandler.sendWithPromise('GetAnnotations', {
       pageIndex: pageIndex,
       intent: intent
     });
   }
 }, {
   key: "getDestinations",
   value: function getDestinations() {
     return this.messageHandler.sendWithPromise('GetDestinations', null);
   }
 }, {
   key: "getDestination",
   value: function getDestination(id) {
     if (typeof id !== 'string') {
       return Promise.reject(new Error('Invalid destination request.'));
     }

     return this.messageHandler.sendWithPromise('GetDestination', {
       id: id
     });
   }
 }, {
   key: "getPageLabels",
   value: function getPageLabels() {
     return this.messageHandler.sendWithPromise('GetPageLabels', null);
   }
 }, {
   key: "getPageLayout",
   value: function getPageLayout() {
     return this.messageHandler.sendWithPromise('GetPageLayout', null);
   }
 }, {
   key: "getPageMode",
   value: function getPageMode() {
     return this.messageHandler.sendWithPromise('GetPageMode', null);
   }
 }, {
   key: "getViewerPreferences",
   value: function getViewerPreferences() {
     return this.messageHandler.sendWithPromise('GetViewerPreferences', null);
   }
 }, {
   key: "getOpenActionDestination",
   value: function getOpenActionDestination() {
     return this.messageHandler.sendWithPromise('GetOpenActionDestination', null);
   }
 }, {
   key: "getAttachments",
   value: function getAttachments() {
     return this.messageHandler.sendWithPromise('GetAttachments', null);
   }
 }, {
   key: "getJavaScript",
   value: function getJavaScript() {
     return this.messageHandler.sendWithPromise('GetJavaScript', null);
   }
 }, {
   key: "getOutline",
   value: function getOutline() {
     return this.messageHandler.sendWithPromise('GetOutline', null);
   }
 }, {
   key: "getPermissions",
   value: function getPermissions() {
     return this.messageHandler.sendWithPromise('GetPermissions', null);
   }
 }, {
   key: "getMetadata",
   value: function getMetadata() {
     var _this15 = this;

     return this.messageHandler.sendWithPromise('GetMetadata', null).then(function (results) {
       return {
         info: results[0],
         metadata: results[1] ? new _metadata.Metadata(results[1]) : null,
         contentDispositionFilename: _this15._fullReader ? _this15._fullReader.filename : null
       };
     });
   }
 }, {
   key: "getStats",
   value: function getStats() {
     return this.messageHandler.sendWithPromise('GetStats', null);
   }
 }, {
   key: "startCleanup",
   value: function startCleanup() {
     var _this16 = this;

     this.messageHandler.sendWithPromise('Cleanup', null).then(function () {
       for (var i = 0, ii = _this16.pageCache.length; i < ii; i++) {
         var page = _this16.pageCache[i];

         if (page) {
           page.cleanup();
         }
       }

       _this16.commonObjs.clear();

       _this16.fontLoader.clear();
     });
   }
 }, {
   key: "loadingParams",
   get: function get() {
     var params = this._params;
     return (0, _util.shadow)(this, 'loadingParams', {
       disableAutoFetch: params.disableAutoFetch,
       disableCreateObjectURL: params.disableCreateObjectURL,
       disableFontFace: params.disableFontFace,
       nativeImageDecoderSupport: params.nativeImageDecoderSupport
     });
   }
 }]);

 return WorkerTransport;
}();

var PDFObjects =
/*#__PURE__*/
function () {
 function PDFObjects() {
   _classCallCheck(this, PDFObjects);

   this._objs = Object.create(null);
 }

 _createClass(PDFObjects, [{
   key: "_ensureObj",
   value: function _ensureObj(objId) {
     if (this._objs[objId]) {
       return this._objs[objId];
     }

     return this._objs[objId] = {
       capability: (0, _util.createPromiseCapability)(),
       data: null,
       resolved: false
     };
   }
 }, {
   key: "get",
   value: function get(objId) {
     var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;

     if (callback) {
       this._ensureObj(objId).capability.promise.then(callback);

       return null;
     }

     var obj = this._objs[objId];

     if (!obj || !obj.resolved) {
       throw new Error("Requesting object that isn't resolved yet ".concat(objId, "."));
     }

     return obj.data;
   }
 }, {
   key: "has",
   value: function has(objId) {
     var obj = this._objs[objId];
     return obj ? obj.resolved : false;
   }
 }, {
   key: "resolve",
   value: function resolve(objId, data) {
     var obj = this._ensureObj(objId);

     obj.resolved = true;
     obj.data = data;
     obj.capability.resolve(data);
   }
 }, {
   key: "clear",
   value: function clear() {
     for (var objId in this._objs) {
       var data = this._objs[objId].data;

       if (typeof Image !== 'undefined' && data instanceof Image) {
         (0, _display_utils.releaseImageResources)(data);
       }
     }

     this._objs = Object.create(null);
   }
 }]);

 return PDFObjects;
}();

var RenderTask =
/*#__PURE__*/
function () {
 function RenderTask(internalRenderTask) {
   _classCallCheck(this, RenderTask);

   this._internalRenderTask = internalRenderTask;
   this.onContinue = null;
 }

 _createClass(RenderTask, [{
   key: "cancel",
   value: function cancel() {
     this._internalRenderTask.cancel();
   }
 }, {
   key: "then",
   value: function then(onFulfilled, onRejected) {
     (0, _display_utils.deprecated)('RenderTask.then method, use the `promise` getter instead.');
     return this.promise.then.apply(this.promise, arguments);
   }
 }, {
   key: "promise",
   get: function get() {
     return this._internalRenderTask.capability.promise;
   }
 }]);

 return RenderTask;
}();

var InternalRenderTask = function InternalRenderTaskClosure() {
 var canvasInRendering = new WeakSet();

 var InternalRenderTask =
 /*#__PURE__*/
 function () {
   function InternalRenderTask(_ref11) {
     var callback = _ref11.callback,
         params = _ref11.params,
         objs = _ref11.objs,
         commonObjs = _ref11.commonObjs,
         operatorList = _ref11.operatorList,
         pageNumber = _ref11.pageNumber,
         canvasFactory = _ref11.canvasFactory,
         webGLContext = _ref11.webGLContext,
         _ref11$useRequestAnim = _ref11.useRequestAnimationFrame,
         useRequestAnimationFrame = _ref11$useRequestAnim === void 0 ? false : _ref11$useRequestAnim,
         _ref11$pdfBug = _ref11.pdfBug,
         pdfBug = _ref11$pdfBug === void 0 ? false : _ref11$pdfBug;

     _classCallCheck(this, InternalRenderTask);

     this.callback = callback;
     this.params = params;
     this.objs = objs;
     this.commonObjs = commonObjs;
     this.operatorListIdx = null;
     this.operatorList = operatorList;
     this.pageNumber = pageNumber;
     this.canvasFactory = canvasFactory;
     this.webGLContext = webGLContext;
     this._pdfBug = pdfBug;
     this.running = false;
     this.graphicsReadyCallback = null;
     this.graphicsReady = false;
     this._useRequestAnimationFrame = useRequestAnimationFrame === true && typeof window !== 'undefined';
     this.cancelled = false;
     this.capability = (0, _util.createPromiseCapability)();
     this.task = new RenderTask(this);
     this._continueBound = this._continue.bind(this);
     this._scheduleNextBound = this._scheduleNext.bind(this);
     this._nextBound = this._next.bind(this);
     this._canvas = params.canvasContext.canvas;
   }

   _createClass(InternalRenderTask, [{
     key: "initializeGraphics",
     value: function initializeGraphics() {
       var transparency = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

       if (this.cancelled) {
         return;
       }

       if (this._canvas) {
         if (canvasInRendering.has(this._canvas)) {
           throw new Error('Cannot use the same canvas during multiple render() operations. ' + 'Use different canvas or ensure previous operations were ' + 'cancelled or completed.');
         }

         canvasInRendering.add(this._canvas);
       }

       if (this._pdfBug && _global_scope["default"].StepperManager && _global_scope["default"].StepperManager.enabled) {
         this.stepper = _global_scope["default"].StepperManager.create(this.pageNumber - 1);
         this.stepper.init(this.operatorList);
         this.stepper.nextBreakPoint = this.stepper.getNextBreakPoint();
       }

       var _this$params = this.params,
           canvasContext = _this$params.canvasContext,
           viewport = _this$params.viewport,
           transform = _this$params.transform,
           imageLayer = _this$params.imageLayer,
           background = _this$params.background;
       this.gfx = new _canvas.CanvasGraphics(canvasContext, this.commonObjs, this.objs, this.canvasFactory, this.webGLContext, imageLayer);
       this.gfx.beginDrawing({
         transform: transform,
         viewport: viewport,
         transparency: transparency,
         background: background
       });
       this.operatorListIdx = 0;
       this.graphicsReady = true;

       if (this.graphicsReadyCallback) {
         this.graphicsReadyCallback();
       }
     }
   }, {
     key: "cancel",
     value: function cancel() {
       var error = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
       this.running = false;
       this.cancelled = true;

       if (this.gfx) {
         this.gfx.endDrawing();
       }

       if (this._canvas) {
         canvasInRendering["delete"](this._canvas);
       }

       this.callback(error || new _display_utils.RenderingCancelledException("Rendering cancelled, page ".concat(this.pageNumber), 'canvas'));
     }
   }, {
     key: "operatorListChanged",
     value: function operatorListChanged() {
       if (!this.graphicsReady) {
         if (!this.graphicsReadyCallback) {
           this.graphicsReadyCallback = this._continueBound;
         }

         return;
       }

       if (this.stepper) {
         this.stepper.updateOperatorList(this.operatorList);
       }

       if (this.running) {
         return;
       }

       this._continue();
     }
   }, {
     key: "_continue",
     value: function _continue() {
       this.running = true;

       if (this.cancelled) {
         return;
       }

       if (this.task.onContinue) {
         this.task.onContinue(this._scheduleNextBound);
       } else {
         this._scheduleNext();
       }
     }
   }, {
     key: "_scheduleNext",
     value: function _scheduleNext() {
       var _this17 = this;

       if (this._useRequestAnimationFrame) {
         window.requestAnimationFrame(function () {
           _this17._nextBound()["catch"](_this17.cancel.bind(_this17));
         });
       } else {
         Promise.resolve().then(this._nextBound)["catch"](this.cancel.bind(this));
       }
     }
   }, {
     key: "_next",
     value: function () {
       var _next2 = _asyncToGenerator(
       /*#__PURE__*/
       _regenerator["default"].mark(function _callee() {
         return _regenerator["default"].wrap(function _callee$(_context) {
           while (1) {
             switch (_context.prev = _context.next) {
               case 0:
                 if (!this.cancelled) {
                   _context.next = 2;
                   break;
                 }

                 return _context.abrupt("return");

               case 2:
                 this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList, this.operatorListIdx, this._continueBound, this.stepper);

                 if (this.operatorListIdx === this.operatorList.argsArray.length) {
                   this.running = false;

                   if (this.operatorList.lastChunk) {
                     this.gfx.endDrawing();

                     if (this._canvas) {
                       canvasInRendering["delete"](this._canvas);
                     }

                     this.callback();
                   }
                 }

               case 4:
               case "end":
                 return _context.stop();
             }
           }
         }, _callee, this);
       }));

       function _next() {
         return _next2.apply(this, arguments);
       }

       return _next;
     }()
   }]);

   return InternalRenderTask;
 }();

 return InternalRenderTask;
}();

var version = '2.2.228';
exports.version = version;
var build = 'd7afb74a';
exports.build = build;

/***/ }),
/* 148 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = __w_pdfjs_require__(149);

/***/ }),
/* 149 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(module) {

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var runtime = function (exports) {
 "use strict";

 var Op = Object.prototype;
 var hasOwn = Op.hasOwnProperty;
 var undefined;
 var $Symbol = typeof Symbol === "function" ? Symbol : {};
 var iteratorSymbol = $Symbol.iterator || "@@iterator";
 var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
 var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

 function wrap(innerFn, outerFn, self, tryLocsList) {
   var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
   var generator = Object.create(protoGenerator.prototype);
   var context = new Context(tryLocsList || []);
   generator._invoke = makeInvokeMethod(innerFn, self, context);
   return generator;
 }

 exports.wrap = wrap;

 function tryCatch(fn, obj, arg) {
   try {
     return {
       type: "normal",
       arg: fn.call(obj, arg)
     };
   } catch (err) {
     return {
       type: "throw",
       arg: err
     };
   }
 }

 var GenStateSuspendedStart = "suspendedStart";
 var GenStateSuspendedYield = "suspendedYield";
 var GenStateExecuting = "executing";
 var GenStateCompleted = "completed";
 var ContinueSentinel = {};

 function Generator() {}

 function GeneratorFunction() {}

 function GeneratorFunctionPrototype() {}

 var IteratorPrototype = {};

 IteratorPrototype[iteratorSymbol] = function () {
   return this;
 };

 var getProto = Object.getPrototypeOf;
 var NativeIteratorPrototype = getProto && getProto(getProto(values([])));

 if (NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
   IteratorPrototype = NativeIteratorPrototype;
 }

 var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
 GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
 GeneratorFunctionPrototype.constructor = GeneratorFunction;
 GeneratorFunctionPrototype[toStringTagSymbol] = GeneratorFunction.displayName = "GeneratorFunction";

 function defineIteratorMethods(prototype) {
   ["next", "throw", "return"].forEach(function (method) {
     prototype[method] = function (arg) {
       return this._invoke(method, arg);
     };
   });
 }

 exports.isGeneratorFunction = function (genFun) {
   var ctor = typeof genFun === "function" && genFun.constructor;
   return ctor ? ctor === GeneratorFunction || (ctor.displayName || ctor.name) === "GeneratorFunction" : false;
 };

 exports.mark = function (genFun) {
   if (Object.setPrototypeOf) {
     Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
   } else {
     genFun.__proto__ = GeneratorFunctionPrototype;

     if (!(toStringTagSymbol in genFun)) {
       genFun[toStringTagSymbol] = "GeneratorFunction";
     }
   }

   genFun.prototype = Object.create(Gp);
   return genFun;
 };

 exports.awrap = function (arg) {
   return {
     __await: arg
   };
 };

 function AsyncIterator(generator) {
   function invoke(method, arg, resolve, reject) {
     var record = tryCatch(generator[method], generator, arg);

     if (record.type === "throw") {
       reject(record.arg);
     } else {
       var result = record.arg;
       var value = result.value;

       if (value && _typeof(value) === "object" && hasOwn.call(value, "__await")) {
         return Promise.resolve(value.__await).then(function (value) {
           invoke("next", value, resolve, reject);
         }, function (err) {
           invoke("throw", err, resolve, reject);
         });
       }

       return Promise.resolve(value).then(function (unwrapped) {
         result.value = unwrapped;
         resolve(result);
       }, function (error) {
         return invoke("throw", error, resolve, reject);
       });
     }
   }

   var previousPromise;

   function enqueue(method, arg) {
     function callInvokeWithMethodAndArg() {
       return new Promise(function (resolve, reject) {
         invoke(method, arg, resolve, reject);
       });
     }

     return previousPromise = previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
   }

   this._invoke = enqueue;
 }

 defineIteratorMethods(AsyncIterator.prototype);

 AsyncIterator.prototype[asyncIteratorSymbol] = function () {
   return this;
 };

 exports.AsyncIterator = AsyncIterator;

 exports.async = function (innerFn, outerFn, self, tryLocsList) {
   var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList));
   return exports.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) {
     return result.done ? result.value : iter.next();
   });
 };

 function makeInvokeMethod(innerFn, self, context) {
   var state = GenStateSuspendedStart;
   return function invoke(method, arg) {
     if (state === GenStateExecuting) {
       throw new Error("Generator is already running");
     }

     if (state === GenStateCompleted) {
       if (method === "throw") {
         throw arg;
       }

       return doneResult();
     }

     context.method = method;
     context.arg = arg;

     while (true) {
       var delegate = context.delegate;

       if (delegate) {
         var delegateResult = maybeInvokeDelegate(delegate, context);

         if (delegateResult) {
           if (delegateResult === ContinueSentinel) continue;
           return delegateResult;
         }
       }

       if (context.method === "next") {
         context.sent = context._sent = context.arg;
       } else if (context.method === "throw") {
         if (state === GenStateSuspendedStart) {
           state = GenStateCompleted;
           throw context.arg;
         }

         context.dispatchException(context.arg);
       } else if (context.method === "return") {
         context.abrupt("return", context.arg);
       }

       state = GenStateExecuting;
       var record = tryCatch(innerFn, self, context);

       if (record.type === "normal") {
         state = context.done ? GenStateCompleted : GenStateSuspendedYield;

         if (record.arg === ContinueSentinel) {
           continue;
         }

         return {
           value: record.arg,
           done: context.done
         };
       } else if (record.type === "throw") {
         state = GenStateCompleted;
         context.method = "throw";
         context.arg = record.arg;
       }
     }
   };
 }

 function maybeInvokeDelegate(delegate, context) {
   var method = delegate.iterator[context.method];

   if (method === undefined) {
     context.delegate = null;

     if (context.method === "throw") {
       if (delegate.iterator["return"]) {
         context.method = "return";
         context.arg = undefined;
         maybeInvokeDelegate(delegate, context);

         if (context.method === "throw") {
           return ContinueSentinel;
         }
       }

       context.method = "throw";
       context.arg = new TypeError("The iterator does not provide a 'throw' method");
     }

     return ContinueSentinel;
   }

   var record = tryCatch(method, delegate.iterator, context.arg);

   if (record.type === "throw") {
     context.method = "throw";
     context.arg = record.arg;
     context.delegate = null;
     return ContinueSentinel;
   }

   var info = record.arg;

   if (!info) {
     context.method = "throw";
     context.arg = new TypeError("iterator result is not an object");
     context.delegate = null;
     return ContinueSentinel;
   }

   if (info.done) {
     context[delegate.resultName] = info.value;
     context.next = delegate.nextLoc;

     if (context.method !== "return") {
       context.method = "next";
       context.arg = undefined;
     }
   } else {
     return info;
   }

   context.delegate = null;
   return ContinueSentinel;
 }

 defineIteratorMethods(Gp);
 Gp[toStringTagSymbol] = "Generator";

 Gp[iteratorSymbol] = function () {
   return this;
 };

 Gp.toString = function () {
   return "[object Generator]";
 };

 function pushTryEntry(locs) {
   var entry = {
     tryLoc: locs[0]
   };

   if (1 in locs) {
     entry.catchLoc = locs[1];
   }

   if (2 in locs) {
     entry.finallyLoc = locs[2];
     entry.afterLoc = locs[3];
   }

   this.tryEntries.push(entry);
 }

 function resetTryEntry(entry) {
   var record = entry.completion || {};
   record.type = "normal";
   delete record.arg;
   entry.completion = record;
 }

 function Context(tryLocsList) {
   this.tryEntries = [{
     tryLoc: "root"
   }];
   tryLocsList.forEach(pushTryEntry, this);
   this.reset(true);
 }

 exports.keys = function (object) {
   var keys = [];

   for (var key in object) {
     keys.push(key);
   }

   keys.reverse();
   return function next() {
     while (keys.length) {
       var key = keys.pop();

       if (key in object) {
         next.value = key;
         next.done = false;
         return next;
       }
     }

     next.done = true;
     return next;
   };
 };

 function values(iterable) {
   if (iterable) {
     var iteratorMethod = iterable[iteratorSymbol];

     if (iteratorMethod) {
       return iteratorMethod.call(iterable);
     }

     if (typeof iterable.next === "function") {
       return iterable;
     }

     if (!isNaN(iterable.length)) {
       var i = -1,
           next = function next() {
         while (++i < iterable.length) {
           if (hasOwn.call(iterable, i)) {
             next.value = iterable[i];
             next.done = false;
             return next;
           }
         }

         next.value = undefined;
         next.done = true;
         return next;
       };

       return next.next = next;
     }
   }

   return {
     next: doneResult
   };
 }

 exports.values = values;

 function doneResult() {
   return {
     value: undefined,
     done: true
   };
 }

 Context.prototype = {
   constructor: Context,
   reset: function reset(skipTempReset) {
     this.prev = 0;
     this.next = 0;
     this.sent = this._sent = undefined;
     this.done = false;
     this.delegate = null;
     this.method = "next";
     this.arg = undefined;
     this.tryEntries.forEach(resetTryEntry);

     if (!skipTempReset) {
       for (var name in this) {
         if (name.charAt(0) === "t" && hasOwn.call(this, name) && !isNaN(+name.slice(1))) {
           this[name] = undefined;
         }
       }
     }
   },
   stop: function stop() {
     this.done = true;
     var rootEntry = this.tryEntries[0];
     var rootRecord = rootEntry.completion;

     if (rootRecord.type === "throw") {
       throw rootRecord.arg;
     }

     return this.rval;
   },
   dispatchException: function dispatchException(exception) {
     if (this.done) {
       throw exception;
     }

     var context = this;

     function handle(loc, caught) {
       record.type = "throw";
       record.arg = exception;
       context.next = loc;

       if (caught) {
         context.method = "next";
         context.arg = undefined;
       }

       return !!caught;
     }

     for (var i = this.tryEntries.length - 1; i >= 0; --i) {
       var entry = this.tryEntries[i];
       var record = entry.completion;

       if (entry.tryLoc === "root") {
         return handle("end");
       }

       if (entry.tryLoc <= this.prev) {
         var hasCatch = hasOwn.call(entry, "catchLoc");
         var hasFinally = hasOwn.call(entry, "finallyLoc");

         if (hasCatch && hasFinally) {
           if (this.prev < entry.catchLoc) {
             return handle(entry.catchLoc, true);
           } else if (this.prev < entry.finallyLoc) {
             return handle(entry.finallyLoc);
           }
         } else if (hasCatch) {
           if (this.prev < entry.catchLoc) {
             return handle(entry.catchLoc, true);
           }
         } else if (hasFinally) {
           if (this.prev < entry.finallyLoc) {
             return handle(entry.finallyLoc);
           }
         } else {
           throw new Error("try statement without catch or finally");
         }
       }
     }
   },
   abrupt: function abrupt(type, arg) {
     for (var i = this.tryEntries.length - 1; i >= 0; --i) {
       var entry = this.tryEntries[i];

       if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
         var finallyEntry = entry;
         break;
       }
     }

     if (finallyEntry && (type === "break" || type === "continue") && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc) {
       finallyEntry = null;
     }

     var record = finallyEntry ? finallyEntry.completion : {};
     record.type = type;
     record.arg = arg;

     if (finallyEntry) {
       this.method = "next";
       this.next = finallyEntry.finallyLoc;
       return ContinueSentinel;
     }

     return this.complete(record);
   },
   complete: function complete(record, afterLoc) {
     if (record.type === "throw") {
       throw record.arg;
     }

     if (record.type === "break" || record.type === "continue") {
       this.next = record.arg;
     } else if (record.type === "return") {
       this.rval = this.arg = record.arg;
       this.method = "return";
       this.next = "end";
     } else if (record.type === "normal" && afterLoc) {
       this.next = afterLoc;
     }

     return ContinueSentinel;
   },
   finish: function finish(finallyLoc) {
     for (var i = this.tryEntries.length - 1; i >= 0; --i) {
       var entry = this.tryEntries[i];

       if (entry.finallyLoc === finallyLoc) {
         this.complete(entry.completion, entry.afterLoc);
         resetTryEntry(entry);
         return ContinueSentinel;
       }
     }
   },
   "catch": function _catch(tryLoc) {
     for (var i = this.tryEntries.length - 1; i >= 0; --i) {
       var entry = this.tryEntries[i];

       if (entry.tryLoc === tryLoc) {
         var record = entry.completion;

         if (record.type === "throw") {
           var thrown = record.arg;
           resetTryEntry(entry);
         }

         return thrown;
       }
     }

     throw new Error("illegal catch attempt");
   },
   delegateYield: function delegateYield(iterable, resultName, nextLoc) {
     this.delegate = {
       iterator: values(iterable),
       resultName: resultName,
       nextLoc: nextLoc
     };

     if (this.method === "next") {
       this.arg = undefined;
     }

     return ContinueSentinel;
   }
 };
 return exports;
}(( false ? undefined : _typeof(module)) === "object" ? module.exports : {});

try {
 regeneratorRuntime = runtime;
} catch (accidentalStrictMode) {
 Function("r", "regeneratorRuntime = r")(runtime);
}
/* WEBPACK VAR INJECTION */}.call(this, __w_pdfjs_require__(150)(module)))

/***/ }),
/* 150 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (module) {
 if (!module.webpackPolyfill) {
   module.deprecate = function () {};

   module.paths = [];
   if (!module.children) module.children = [];
   Object.defineProperty(module, "loaded", {
     enumerable: true,
     get: function get() {
       return module.l;
     }
   });
   Object.defineProperty(module, "id", {
     enumerable: true,
     get: function get() {
       return module.i;
     }
   });
   module.webpackPolyfill = 1;
 }

 return module;
};

/***/ }),
/* 151 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.addLinkAttributes = addLinkAttributes;
exports.getFilenameFromUrl = getFilenameFromUrl;
exports.isFetchSupported = isFetchSupported;
exports.isValidFetchUrl = isValidFetchUrl;
exports.loadScript = loadScript;
exports.deprecated = deprecated;
exports.releaseImageResources = releaseImageResources;
exports.PDFDateString = exports.DummyStatTimer = exports.StatTimer = exports.DOMSVGFactory = exports.DOMCMapReaderFactory = exports.DOMCanvasFactory = exports.DEFAULT_LINK_REL = exports.LinkTarget = exports.RenderingCancelledException = exports.PageViewport = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var DEFAULT_LINK_REL = 'noopener noreferrer nofollow';
exports.DEFAULT_LINK_REL = DEFAULT_LINK_REL;
var SVG_NS = 'http://www.w3.org/2000/svg';

var DOMCanvasFactory =
/*#__PURE__*/
function () {
 function DOMCanvasFactory() {
   _classCallCheck(this, DOMCanvasFactory);
 }

 _createClass(DOMCanvasFactory, [{
   key: "create",
   value: function create(width, height) {
     if (width <= 0 || height <= 0) {
       throw new Error('Invalid canvas size');
     }

     var canvas = document.createElement('canvas');
     var context = canvas.getContext('2d');
     canvas.width = width;
     canvas.height = height;
     return {
       canvas: canvas,
       context: context
     };
   }
 }, {
   key: "reset",
   value: function reset(canvasAndContext, width, height) {
     if (!canvasAndContext.canvas) {
       throw new Error('Canvas is not specified');
     }

     if (width <= 0 || height <= 0) {
       throw new Error('Invalid canvas size');
     }

     canvasAndContext.canvas.width = width;
     canvasAndContext.canvas.height = height;
   }
 }, {
   key: "destroy",
   value: function destroy(canvasAndContext) {
     if (!canvasAndContext.canvas) {
       throw new Error('Canvas is not specified');
     }

     canvasAndContext.canvas.width = 0;
     canvasAndContext.canvas.height = 0;
     canvasAndContext.canvas = null;
     canvasAndContext.context = null;
   }
 }]);

 return DOMCanvasFactory;
}();

exports.DOMCanvasFactory = DOMCanvasFactory;

var DOMCMapReaderFactory =
/*#__PURE__*/
function () {
 function DOMCMapReaderFactory(_ref) {
   var _ref$baseUrl = _ref.baseUrl,
       baseUrl = _ref$baseUrl === void 0 ? null : _ref$baseUrl,
       _ref$isCompressed = _ref.isCompressed,
       isCompressed = _ref$isCompressed === void 0 ? false : _ref$isCompressed;

   _classCallCheck(this, DOMCMapReaderFactory);

   this.baseUrl = baseUrl;
   this.isCompressed = isCompressed;
 }

 _createClass(DOMCMapReaderFactory, [{
   key: "fetch",
   value: function (_fetch) {
     function fetch(_x) {
       return _fetch.apply(this, arguments);
     }

     fetch.toString = function () {
       return _fetch.toString();
     };

     return fetch;
   }(
   /*#__PURE__*/
   function () {
     var _ref3 = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee2(_ref2) {
       var _this = this;

       var name, url, compressionType;
       return _regenerator["default"].wrap(function _callee2$(_context2) {
         while (1) {
           switch (_context2.prev = _context2.next) {
             case 0:
               name = _ref2.name;

               if (this.baseUrl) {
                 _context2.next = 3;
                 break;
               }

               throw new Error('The CMap "baseUrl" parameter must be specified, ensure that ' + 'the "cMapUrl" and "cMapPacked" API parameters are provided.');

             case 3:
               if (name) {
                 _context2.next = 5;
                 break;
               }

               throw new Error('CMap name must be specified.');

             case 5:
               url = this.baseUrl + name + (this.isCompressed ? '.bcmap' : '');
               compressionType = this.isCompressed ? _util.CMapCompressionType.BINARY : _util.CMapCompressionType.NONE;

               if (!(isFetchSupported() && isValidFetchUrl(url, document.baseURI))) {
                 _context2.next = 9;
                 break;
               }

               return _context2.abrupt("return", fetch(url).then(
               /*#__PURE__*/
               function () {
                 var _ref4 = _asyncToGenerator(
                 /*#__PURE__*/
                 _regenerator["default"].mark(function _callee(response) {
                   var cMapData;
                   return _regenerator["default"].wrap(function _callee$(_context) {
                     while (1) {
                       switch (_context.prev = _context.next) {
                         case 0:
                           if (response.ok) {
                             _context.next = 2;
                             break;
                           }

                           throw new Error(response.statusText);

                         case 2:
                           if (!_this.isCompressed) {
                             _context.next = 10;
                             break;
                           }

                           _context.t0 = Uint8Array;
                           _context.next = 6;
                           return response.arrayBuffer();

                         case 6:
                           _context.t1 = _context.sent;
                           cMapData = new _context.t0(_context.t1);
                           _context.next = 15;
                           break;

                         case 10:
                           _context.t2 = _util.stringToBytes;
                           _context.next = 13;
                           return response.text();

                         case 13:
                           _context.t3 = _context.sent;
                           cMapData = (0, _context.t2)(_context.t3);

                         case 15:
                           return _context.abrupt("return", {
                             cMapData: cMapData,
                             compressionType: compressionType
                           });

                         case 16:
                         case "end":
                           return _context.stop();
                       }
                     }
                   }, _callee);
                 }));

                 return function (_x3) {
                   return _ref4.apply(this, arguments);
                 };
               }())["catch"](function (reason) {
                 throw new Error("Unable to load ".concat(_this.isCompressed ? 'binary ' : '') + "CMap at: ".concat(url));
               }));

             case 9:
               return _context2.abrupt("return", new Promise(function (resolve, reject) {
                 var request = new XMLHttpRequest();
                 request.open('GET', url, true);

                 if (_this.isCompressed) {
                   request.responseType = 'arraybuffer';
                 }

                 request.onreadystatechange = function () {
                   if (request.readyState !== XMLHttpRequest.DONE) {
                     return;
                   }

                   if (request.status === 200 || request.status === 0) {
                     var cMapData;

                     if (_this.isCompressed && request.response) {
                       cMapData = new Uint8Array(request.response);
                     } else if (!_this.isCompressed && request.responseText) {
                       cMapData = (0, _util.stringToBytes)(request.responseText);
                     }

                     if (cMapData) {
                       resolve({
                         cMapData: cMapData,
                         compressionType: compressionType
                       });
                       return;
                     }
                   }

                   reject(new Error(request.statusText));
                 };

                 request.send(null);
               })["catch"](function (reason) {
                 throw new Error("Unable to load ".concat(_this.isCompressed ? 'binary ' : '') + "CMap at: ".concat(url));
               }));

             case 10:
             case "end":
               return _context2.stop();
           }
         }
       }, _callee2, this);
     }));

     return function (_x2) {
       return _ref3.apply(this, arguments);
     };
   }())
 }]);

 return DOMCMapReaderFactory;
}();

exports.DOMCMapReaderFactory = DOMCMapReaderFactory;

var DOMSVGFactory =
/*#__PURE__*/
function () {
 function DOMSVGFactory() {
   _classCallCheck(this, DOMSVGFactory);
 }

 _createClass(DOMSVGFactory, [{
   key: "create",
   value: function create(width, height) {
     (0, _util.assert)(width > 0 && height > 0, 'Invalid SVG dimensions');
     var svg = document.createElementNS(SVG_NS, 'svg:svg');
     svg.setAttribute('version', '1.1');
     svg.setAttribute('width', width + 'px');
     svg.setAttribute('height', height + 'px');
     svg.setAttribute('preserveAspectRatio', 'none');
     svg.setAttribute('viewBox', '0 0 ' + width + ' ' + height);
     return svg;
   }
 }, {
   key: "createElement",
   value: function createElement(type) {
     (0, _util.assert)(typeof type === 'string', 'Invalid SVG element type');
     return document.createElementNS(SVG_NS, type);
   }
 }]);

 return DOMSVGFactory;
}();

exports.DOMSVGFactory = DOMSVGFactory;

var PageViewport =
/*#__PURE__*/
function () {
 function PageViewport(_ref5) {
   var viewBox = _ref5.viewBox,
       scale = _ref5.scale,
       rotation = _ref5.rotation,
       _ref5$offsetX = _ref5.offsetX,
       offsetX = _ref5$offsetX === void 0 ? 0 : _ref5$offsetX,
       _ref5$offsetY = _ref5.offsetY,
       offsetY = _ref5$offsetY === void 0 ? 0 : _ref5$offsetY,
       _ref5$dontFlip = _ref5.dontFlip,
       dontFlip = _ref5$dontFlip === void 0 ? false : _ref5$dontFlip;

   _classCallCheck(this, PageViewport);

   this.viewBox = viewBox;
   this.scale = scale;
   this.rotation = rotation;
   this.offsetX = offsetX;
   this.offsetY = offsetY;
   var centerX = (viewBox[2] + viewBox[0]) / 2;
   var centerY = (viewBox[3] + viewBox[1]) / 2;
   var rotateA, rotateB, rotateC, rotateD;
   rotation = rotation % 360;
   rotation = rotation < 0 ? rotation + 360 : rotation;

   switch (rotation) {
     case 180:
       rotateA = -1;
       rotateB = 0;
       rotateC = 0;
       rotateD = 1;
       break;

     case 90:
       rotateA = 0;
       rotateB = 1;
       rotateC = 1;
       rotateD = 0;
       break;

     case 270:
       rotateA = 0;
       rotateB = -1;
       rotateC = -1;
       rotateD = 0;
       break;

     default:
       rotateA = 1;
       rotateB = 0;
       rotateC = 0;
       rotateD = -1;
       break;
   }

   if (dontFlip) {
     rotateC = -rotateC;
     rotateD = -rotateD;
   }

   var offsetCanvasX, offsetCanvasY;
   var width, height;

   if (rotateA === 0) {
     offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;
     offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;
     width = Math.abs(viewBox[3] - viewBox[1]) * scale;
     height = Math.abs(viewBox[2] - viewBox[0]) * scale;
   } else {
     offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;
     offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;
     width = Math.abs(viewBox[2] - viewBox[0]) * scale;
     height = Math.abs(viewBox[3] - viewBox[1]) * scale;
   }

   this.transform = [rotateA * scale, rotateB * scale, rotateC * scale, rotateD * scale, offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY, offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY];
   this.width = width;
   this.height = height;
 }

 _createClass(PageViewport, [{
   key: "clone",
   value: function clone() {
     var _ref6 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
         _ref6$scale = _ref6.scale,
         scale = _ref6$scale === void 0 ? this.scale : _ref6$scale,
         _ref6$rotation = _ref6.rotation,
         rotation = _ref6$rotation === void 0 ? this.rotation : _ref6$rotation,
         _ref6$dontFlip = _ref6.dontFlip,
         dontFlip = _ref6$dontFlip === void 0 ? false : _ref6$dontFlip;

     return new PageViewport({
       viewBox: this.viewBox.slice(),
       scale: scale,
       rotation: rotation,
       offsetX: this.offsetX,
       offsetY: this.offsetY,
       dontFlip: dontFlip
     });
   }
 }, {
   key: "convertToViewportPoint",
   value: function convertToViewportPoint(x, y) {
     return _util.Util.applyTransform([x, y], this.transform);
   }
 }, {
   key: "convertToViewportRectangle",
   value: function convertToViewportRectangle(rect) {
     var topLeft = _util.Util.applyTransform([rect[0], rect[1]], this.transform);

     var bottomRight = _util.Util.applyTransform([rect[2], rect[3]], this.transform);

     return [topLeft[0], topLeft[1], bottomRight[0], bottomRight[1]];
   }
 }, {
   key: "convertToPdfPoint",
   value: function convertToPdfPoint(x, y) {
     return _util.Util.applyInverseTransform([x, y], this.transform);
   }
 }]);

 return PageViewport;
}();

exports.PageViewport = PageViewport;

var RenderingCancelledException = function RenderingCancelledException() {
 function RenderingCancelledException(msg, type) {
   this.message = msg;
   this.type = type;
 }

 RenderingCancelledException.prototype = new Error();
 RenderingCancelledException.prototype.name = 'RenderingCancelledException';
 RenderingCancelledException.constructor = RenderingCancelledException;
 return RenderingCancelledException;
}();

exports.RenderingCancelledException = RenderingCancelledException;
var LinkTarget = {
 NONE: 0,
 SELF: 1,
 BLANK: 2,
 PARENT: 3,
 TOP: 4
};
exports.LinkTarget = LinkTarget;
var LinkTargetStringMap = ['', '_self', '_blank', '_parent', '_top'];

function addLinkAttributes(link) {
 var _ref7 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
     url = _ref7.url,
     target = _ref7.target,
     rel = _ref7.rel;

 link.href = link.title = url ? (0, _util.removeNullCharacters)(url) : '';

 if (url) {
   var LinkTargetValues = Object.values(LinkTarget);
   var targetIndex = LinkTargetValues.includes(target) ? target : LinkTarget.NONE;
   link.target = LinkTargetStringMap[targetIndex];
   link.rel = typeof rel === 'string' ? rel : DEFAULT_LINK_REL;
 }
}

function getFilenameFromUrl(url) {
 var anchor = url.indexOf('#');
 var query = url.indexOf('?');
 var end = Math.min(anchor > 0 ? anchor : url.length, query > 0 ? query : url.length);
 return url.substring(url.lastIndexOf('/', end) + 1, end);
}

var StatTimer =
/*#__PURE__*/
function () {
 function StatTimer() {
   var enable = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

   _classCallCheck(this, StatTimer);

   this.enabled = !!enable;
   this.started = Object.create(null);
   this.times = [];
 }

 _createClass(StatTimer, [{
   key: "time",
   value: function time(name) {
     if (!this.enabled) {
       return;
     }

     if (name in this.started) {
       (0, _util.warn)('Timer is already running for ' + name);
     }

     this.started[name] = Date.now();
   }
 }, {
   key: "timeEnd",
   value: function timeEnd(name) {
     if (!this.enabled) {
       return;
     }

     if (!(name in this.started)) {
       (0, _util.warn)('Timer has not been started for ' + name);
     }

     this.times.push({
       'name': name,
       'start': this.started[name],
       'end': Date.now()
     });
     delete this.started[name];
   }
 }, {
   key: "toString",
   value: function toString() {
     var out = '',
         longest = 0;
     var _iteratorNormalCompletion = true;
     var _didIteratorError = false;
     var _iteratorError = undefined;

     try {
       for (var _iterator = this.times[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
         var time = _step.value;
         var name = time.name;

         if (name.length > longest) {
           longest = name.length;
         }
       }
     } catch (err) {
       _didIteratorError = true;
       _iteratorError = err;
     } finally {
       try {
         if (!_iteratorNormalCompletion && _iterator["return"] != null) {
           _iterator["return"]();
         }
       } finally {
         if (_didIteratorError) {
           throw _iteratorError;
         }
       }
     }

     var _iteratorNormalCompletion2 = true;
     var _didIteratorError2 = false;
     var _iteratorError2 = undefined;

     try {
       for (var _iterator2 = this.times[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
         var _time = _step2.value;
         var duration = _time.end - _time.start;
         out += "".concat(_time.name.padEnd(longest), " ").concat(duration, "ms\n");
       }
     } catch (err) {
       _didIteratorError2 = true;
       _iteratorError2 = err;
     } finally {
       try {
         if (!_iteratorNormalCompletion2 && _iterator2["return"] != null) {
           _iterator2["return"]();
         }
       } finally {
         if (_didIteratorError2) {
           throw _iteratorError2;
         }
       }
     }

     return out;
   }
 }]);

 return StatTimer;
}();

exports.StatTimer = StatTimer;

var DummyStatTimer =
/*#__PURE__*/
function () {
 function DummyStatTimer() {
   _classCallCheck(this, DummyStatTimer);

   (0, _util.unreachable)('Cannot initialize DummyStatTimer.');
 }

 _createClass(DummyStatTimer, null, [{
   key: "time",
   value: function time(name) {}
 }, {
   key: "timeEnd",
   value: function timeEnd(name) {}
 }, {
   key: "toString",
   value: function toString() {
     return '';
   }
 }]);

 return DummyStatTimer;
}();

exports.DummyStatTimer = DummyStatTimer;

function isFetchSupported() {
 return typeof fetch !== 'undefined' && typeof Response !== 'undefined' && 'body' in Response.prototype && typeof ReadableStream !== 'undefined';
}

function isValidFetchUrl(url, baseUrl) {
 try {
   var _ref8 = baseUrl ? new _util.URL(url, baseUrl) : new _util.URL(url),
       protocol = _ref8.protocol;

   return protocol === 'http:' || protocol === 'https:';
 } catch (ex) {
   return false;
 }
}

function loadScript(src) {
 return new Promise(function (resolve, reject) {
   var script = document.createElement('script');
   script.src = src;
   script.onload = resolve;

   script.onerror = function () {
     reject(new Error("Cannot load script at: ".concat(script.src)));
   };

   (document.head || document.documentElement).appendChild(script);
 });
}

function deprecated(details) {
 console.log('Deprecated API usage: ' + details);
}

function releaseImageResources(img) {
 (0, _util.assert)(img instanceof Image, 'Invalid `img` parameter.');
 var url = img.src;

 if (typeof url === 'string' && url.startsWith('blob:') && _util.URL.revokeObjectURL) {
   _util.URL.revokeObjectURL(url);
 }

 img.removeAttribute('src');
}

var pdfDateStringRegex;

var PDFDateString =
/*#__PURE__*/
function () {
 function PDFDateString() {
   _classCallCheck(this, PDFDateString);
 }

 _createClass(PDFDateString, null, [{
   key: "toDateObject",
   value: function toDateObject(input) {
     if (!input || !(0, _util.isString)(input)) {
       return null;
     }

     if (!pdfDateStringRegex) {
       pdfDateStringRegex = new RegExp('^D:' + '(\\d{4})' + '(\\d{2})?' + '(\\d{2})?' + '(\\d{2})?' + '(\\d{2})?' + '(\\d{2})?' + '([Z|+|-])?' + '(\\d{2})?' + '\'?' + '(\\d{2})?' + '\'?');
     }

     var matches = pdfDateStringRegex.exec(input);

     if (!matches) {
       return null;
     }

     var year = parseInt(matches[1], 10);
     var month = parseInt(matches[2], 10);
     month = month >= 1 && month <= 12 ? month - 1 : 0;
     var day = parseInt(matches[3], 10);
     day = day >= 1 && day <= 31 ? day : 1;
     var hour = parseInt(matches[4], 10);
     hour = hour >= 0 && hour <= 23 ? hour : 0;
     var minute = parseInt(matches[5], 10);
     minute = minute >= 0 && minute <= 59 ? minute : 0;
     var second = parseInt(matches[6], 10);
     second = second >= 0 && second <= 59 ? second : 0;
     var universalTimeRelation = matches[7] || 'Z';
     var offsetHour = parseInt(matches[8], 10);
     offsetHour = offsetHour >= 0 && offsetHour <= 23 ? offsetHour : 0;
     var offsetMinute = parseInt(matches[9], 10) || 0;
     offsetMinute = offsetMinute >= 0 && offsetMinute <= 59 ? offsetMinute : 0;

     if (universalTimeRelation === '-') {
       hour += offsetHour;
       minute += offsetMinute;
     } else if (universalTimeRelation === '+') {
       hour -= offsetHour;
       minute -= offsetMinute;
     }

     return new Date(Date.UTC(year, month, day, hour, minute, second));
   }
 }]);

 return PDFDateString;
}();

exports.PDFDateString = PDFDateString;

/***/ }),
/* 152 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.FontLoader = exports.FontFaceObject = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var BaseFontLoader =
/*#__PURE__*/
function () {
 function BaseFontLoader(_ref) {
   var docId = _ref.docId,
       onUnsupportedFeature = _ref.onUnsupportedFeature;

   _classCallCheck(this, BaseFontLoader);

   if (this.constructor === BaseFontLoader) {
     (0, _util.unreachable)('Cannot initialize BaseFontLoader.');
   }

   this.docId = docId;
   this._onUnsupportedFeature = onUnsupportedFeature;
   this.nativeFontFaces = [];
   this.styleElement = null;
 }

 _createClass(BaseFontLoader, [{
   key: "addNativeFontFace",
   value: function addNativeFontFace(nativeFontFace) {
     this.nativeFontFaces.push(nativeFontFace);
     document.fonts.add(nativeFontFace);
   }
 }, {
   key: "insertRule",
   value: function insertRule(rule) {
     var styleElement = this.styleElement;

     if (!styleElement) {
       styleElement = this.styleElement = document.createElement('style');
       styleElement.id = "PDFJS_FONT_STYLE_TAG_".concat(this.docId);
       document.documentElement.getElementsByTagName('head')[0].appendChild(styleElement);
     }

     var styleSheet = styleElement.sheet;
     styleSheet.insertRule(rule, styleSheet.cssRules.length);
   }
 }, {
   key: "clear",
   value: function clear() {
     this.nativeFontFaces.forEach(function (nativeFontFace) {
       document.fonts["delete"](nativeFontFace);
     });
     this.nativeFontFaces.length = 0;

     if (this.styleElement) {
       this.styleElement.remove();
       this.styleElement = null;
     }
   }
 }, {
   key: "bind",
   value: function () {
     var _bind = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee(font) {
       var _this = this;

       var nativeFontFace, rule;
       return _regenerator["default"].wrap(function _callee$(_context) {
         while (1) {
           switch (_context.prev = _context.next) {
             case 0:
               if (!(font.attached || font.missingFile)) {
                 _context.next = 2;
                 break;
               }

               return _context.abrupt("return", undefined);

             case 2:
               font.attached = true;

               if (!this.isFontLoadingAPISupported) {
                 _context.next = 19;
                 break;
               }

               nativeFontFace = font.createNativeFontFace();

               if (!nativeFontFace) {
                 _context.next = 18;
                 break;
               }

               this.addNativeFontFace(nativeFontFace);
               _context.prev = 7;
               _context.next = 10;
               return nativeFontFace.loaded;

             case 10:
               _context.next = 18;
               break;

             case 12:
               _context.prev = 12;
               _context.t0 = _context["catch"](7);

               this._onUnsupportedFeature({
                 featureId: _util.UNSUPPORTED_FEATURES.font
               });

               (0, _util.warn)("Failed to load font '".concat(nativeFontFace.family, "': '").concat(_context.t0, "'."));
               font.disableFontFace = true;
               throw _context.t0;

             case 18:
               return _context.abrupt("return", undefined);

             case 19:
               rule = font.createFontFaceRule();

               if (!rule) {
                 _context.next = 25;
                 break;
               }

               this.insertRule(rule);

               if (!this.isSyncFontLoadingSupported) {
                 _context.next = 24;
                 break;
               }

               return _context.abrupt("return", undefined);

             case 24:
               return _context.abrupt("return", new Promise(function (resolve) {
                 var request = _this._queueLoadingCallback(resolve);

                 _this._prepareFontLoadEvent([rule], [font], request);
               }));

             case 25:
               return _context.abrupt("return", undefined);

             case 26:
             case "end":
               return _context.stop();
           }
         }
       }, _callee, this, [[7, 12]]);
     }));

     function bind(_x) {
       return _bind.apply(this, arguments);
     }

     return bind;
   }()
 }, {
   key: "_queueLoadingCallback",
   value: function _queueLoadingCallback(callback) {
     (0, _util.unreachable)('Abstract method `_queueLoadingCallback`.');
   }
 }, {
   key: "_prepareFontLoadEvent",
   value: function _prepareFontLoadEvent(rules, fontsToLoad, request) {
     (0, _util.unreachable)('Abstract method `_prepareFontLoadEvent`.');
   }
 }, {
   key: "isFontLoadingAPISupported",
   get: function get() {
     (0, _util.unreachable)('Abstract method `isFontLoadingAPISupported`.');
   }
 }, {
   key: "isSyncFontLoadingSupported",
   get: function get() {
     (0, _util.unreachable)('Abstract method `isSyncFontLoadingSupported`.');
   }
 }, {
   key: "_loadTestFont",
   get: function get() {
     (0, _util.unreachable)('Abstract method `_loadTestFont`.');
   }
 }]);

 return BaseFontLoader;
}();

var FontLoader;
exports.FontLoader = FontLoader;
{
 exports.FontLoader = FontLoader =
 /*#__PURE__*/
 function (_BaseFontLoader) {
   _inherits(GenericFontLoader, _BaseFontLoader);

   function GenericFontLoader(docId) {
     var _this2;

     _classCallCheck(this, GenericFontLoader);

     _this2 = _possibleConstructorReturn(this, _getPrototypeOf(GenericFontLoader).call(this, docId));
     _this2.loadingContext = {
       requests: [],
       nextRequestId: 0
     };
     _this2.loadTestFontId = 0;
     return _this2;
   }

   _createClass(GenericFontLoader, [{
     key: "_queueLoadingCallback",
     value: function _queueLoadingCallback(callback) {
       function completeRequest() {
         (0, _util.assert)(!request.done, 'completeRequest() cannot be called twice.');
         request.done = true;

         while (context.requests.length > 0 && context.requests[0].done) {
           var otherRequest = context.requests.shift();
           setTimeout(otherRequest.callback, 0);
         }
       }

       var context = this.loadingContext;
       var request = {
         id: "pdfjs-font-loading-".concat(context.nextRequestId++),
         done: false,
         complete: completeRequest,
         callback: callback
       };
       context.requests.push(request);
       return request;
     }
   }, {
     key: "_prepareFontLoadEvent",
     value: function _prepareFontLoadEvent(rules, fonts, request) {
       function int32(data, offset) {
         return data.charCodeAt(offset) << 24 | data.charCodeAt(offset + 1) << 16 | data.charCodeAt(offset + 2) << 8 | data.charCodeAt(offset + 3) & 0xff;
       }

       function spliceString(s, offset, remove, insert) {
         var chunk1 = s.substring(0, offset);
         var chunk2 = s.substring(offset + remove);
         return chunk1 + insert + chunk2;
       }

       var i, ii;
       var canvas = document.createElement('canvas');
       canvas.width = 1;
       canvas.height = 1;
       var ctx = canvas.getContext('2d');
       var called = 0;

       function isFontReady(name, callback) {
         called++;

         if (called > 30) {
           (0, _util.warn)('Load test font never loaded.');
           callback();
           return;
         }

         ctx.font = '30px ' + name;
         ctx.fillText('.', 0, 20);
         var imageData = ctx.getImageData(0, 0, 1, 1);

         if (imageData.data[3] > 0) {
           callback();
           return;
         }

         setTimeout(isFontReady.bind(null, name, callback));
       }

       var loadTestFontId = "lt".concat(Date.now()).concat(this.loadTestFontId++);
       var data = this._loadTestFont;
       var COMMENT_OFFSET = 976;
       data = spliceString(data, COMMENT_OFFSET, loadTestFontId.length, loadTestFontId);
       var CFF_CHECKSUM_OFFSET = 16;
       var XXXX_VALUE = 0x58585858;
       var checksum = int32(data, CFF_CHECKSUM_OFFSET);

       for (i = 0, ii = loadTestFontId.length - 3; i < ii; i += 4) {
         checksum = checksum - XXXX_VALUE + int32(loadTestFontId, i) | 0;
       }

       if (i < loadTestFontId.length) {
         checksum = checksum - XXXX_VALUE + int32(loadTestFontId + 'XXX', i) | 0;
       }

       data = spliceString(data, CFF_CHECKSUM_OFFSET, 4, (0, _util.string32)(checksum));
       var url = "url(data:font/opentype;base64,".concat(btoa(data), ");");
       var rule = "@font-face {font-family:\"".concat(loadTestFontId, "\";src:").concat(url, "}");
       this.insertRule(rule);
       var names = [];

       for (i = 0, ii = fonts.length; i < ii; i++) {
         names.push(fonts[i].loadedName);
       }

       names.push(loadTestFontId);
       var div = document.createElement('div');
       div.setAttribute('style', 'visibility: hidden;' + 'width: 10px; height: 10px;' + 'position: absolute; top: 0px; left: 0px;');

       for (i = 0, ii = names.length; i < ii; ++i) {
         var span = document.createElement('span');
         span.textContent = 'Hi';
         span.style.fontFamily = names[i];
         div.appendChild(span);
       }

       document.body.appendChild(div);
       isFontReady(loadTestFontId, function () {
         document.body.removeChild(div);
         request.complete();
       });
     }
   }, {
     key: "isFontLoadingAPISupported",
     get: function get() {
       var supported = typeof document !== 'undefined' && !!document.fonts;

       if (supported && typeof navigator !== 'undefined') {
         var m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(navigator.userAgent);

         if (m && m[1] < 63) {
           supported = false;
         }
       }

       return (0, _util.shadow)(this, 'isFontLoadingAPISupported', supported);
     }
   }, {
     key: "isSyncFontLoadingSupported",
     get: function get() {
       var supported = false;

       if (typeof navigator === 'undefined') {
         supported = true;
       } else {
         var m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(navigator.userAgent);

         if (m && m[1] >= 14) {
           supported = true;
         }
       }

       return (0, _util.shadow)(this, 'isSyncFontLoadingSupported', supported);
     }
   }, {
     key: "_loadTestFont",
     get: function get() {
       var getLoadTestFont = function getLoadTestFont() {
         return atob('T1RUTwALAIAAAwAwQ0ZGIDHtZg4AAAOYAAAAgUZGVE1lkzZwAAAEHAAAABxHREVGABQA' + 'FQAABDgAAAAeT1MvMlYNYwkAAAEgAAAAYGNtYXABDQLUAAACNAAAAUJoZWFk/xVFDQAA' + 'ALwAAAA2aGhlYQdkA+oAAAD0AAAAJGhtdHgD6AAAAAAEWAAAAAZtYXhwAAJQAAAAARgA' + 'AAAGbmFtZVjmdH4AAAGAAAAAsXBvc3T/hgAzAAADeAAAACAAAQAAAAEAALZRFsRfDzz1' + 'AAsD6AAAAADOBOTLAAAAAM4KHDwAAAAAA+gDIQAAAAgAAgAAAAAAAAABAAADIQAAAFoD' + '6AAAAAAD6AABAAAAAAAAAAAAAAAAAAAAAQAAUAAAAgAAAAQD6AH0AAUAAAKKArwAAACM' + 'AooCvAAAAeAAMQECAAACAAYJAAAAAAAAAAAAAQAAAAAAAAAAAAAAAFBmRWQAwAAuAC4D' + 'IP84AFoDIQAAAAAAAQAAAAAAAAAAACAAIAABAAAADgCuAAEAAAAAAAAAAQAAAAEAAAAA' + 'AAEAAQAAAAEAAAAAAAIAAQAAAAEAAAAAAAMAAQAAAAEAAAAAAAQAAQAAAAEAAAAAAAUA' + 'AQAAAAEAAAAAAAYAAQAAAAMAAQQJAAAAAgABAAMAAQQJAAEAAgABAAMAAQQJAAIAAgAB' + 'AAMAAQQJAAMAAgABAAMAAQQJAAQAAgABAAMAAQQJAAUAAgABAAMAAQQJAAYAAgABWABY' + 'AAAAAAAAAwAAAAMAAAAcAAEAAAAAADwAAwABAAAAHAAEACAAAAAEAAQAAQAAAC7//wAA' + 'AC7////TAAEAAAAAAAABBgAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMAAAAAAAD/gwAyAAAAAQAAAAAAAAAAAAAAAAAA' + 'AAABAAQEAAEBAQJYAAEBASH4DwD4GwHEAvgcA/gXBIwMAYuL+nz5tQXkD5j3CBLnEQAC' + 'AQEBIVhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYAAABAQAADwACAQEEE/t3' + 'Dov6fAH6fAT+fPp8+nwHDosMCvm1Cvm1DAz6fBQAAAAAAAABAAAAAMmJbzEAAAAAzgTj' + 'FQAAAADOBOQpAAEAAAAAAAAADAAUAAQAAAABAAAAAgABAAAAAAAAAAAD6AAAAAAAAA==');
       };

       return (0, _util.shadow)(this, '_loadTestFont', getLoadTestFont());
     }
   }]);

   return GenericFontLoader;
 }(BaseFontLoader);
}
var IsEvalSupportedCached = {
 get value() {
   return (0, _util.shadow)(this, 'value', (0, _util.isEvalSupported)());
 }

};

var FontFaceObject =
/*#__PURE__*/
function () {
 function FontFaceObject(translatedData, _ref2) {
   var _ref2$isEvalSupported = _ref2.isEvalSupported,
       isEvalSupported = _ref2$isEvalSupported === void 0 ? true : _ref2$isEvalSupported,
       _ref2$disableFontFace = _ref2.disableFontFace,
       disableFontFace = _ref2$disableFontFace === void 0 ? false : _ref2$disableFontFace,
       _ref2$ignoreErrors = _ref2.ignoreErrors,
       ignoreErrors = _ref2$ignoreErrors === void 0 ? false : _ref2$ignoreErrors,
       _ref2$onUnsupportedFe = _ref2.onUnsupportedFeature,
       onUnsupportedFeature = _ref2$onUnsupportedFe === void 0 ? null : _ref2$onUnsupportedFe,
       _ref2$fontRegistry = _ref2.fontRegistry,
       fontRegistry = _ref2$fontRegistry === void 0 ? null : _ref2$fontRegistry;

   _classCallCheck(this, FontFaceObject);

   this.compiledGlyphs = Object.create(null);

   for (var i in translatedData) {
     this[i] = translatedData[i];
   }

   this.isEvalSupported = isEvalSupported !== false;
   this.disableFontFace = disableFontFace === true;
   this.ignoreErrors = ignoreErrors === true;
   this._onUnsupportedFeature = onUnsupportedFeature;
   this.fontRegistry = fontRegistry;
 }

 _createClass(FontFaceObject, [{
   key: "createNativeFontFace",
   value: function createNativeFontFace() {
     if (!this.data || this.disableFontFace) {
       return null;
     }

     var nativeFontFace = new FontFace(this.loadedName, this.data, {});

     if (this.fontRegistry) {
       this.fontRegistry.registerFont(this);
     }

     return nativeFontFace;
   }
 }, {
   key: "createFontFaceRule",
   value: function createFontFaceRule() {
     if (!this.data || this.disableFontFace) {
       return null;
     }

     var data = (0, _util.bytesToString)(new Uint8Array(this.data));
     var url = "url(data:".concat(this.mimetype, ";base64,").concat(btoa(data), ");");
     var rule = "@font-face {font-family:\"".concat(this.loadedName, "\";src:").concat(url, "}");

     if (this.fontRegistry) {
       this.fontRegistry.registerFont(this, url);
     }

     return rule;
   }
 }, {
   key: "getPathGenerator",
   value: function getPathGenerator(objs, character) {
     if (this.compiledGlyphs[character] !== undefined) {
       return this.compiledGlyphs[character];
     }

     var cmds, current;

     try {
       cmds = objs.get(this.loadedName + '_path_' + character);
     } catch (ex) {
       if (!this.ignoreErrors) {
         throw ex;
       }

       if (this._onUnsupportedFeature) {
         this._onUnsupportedFeature({
           featureId: _util.UNSUPPORTED_FEATURES.font
         });
       }

       (0, _util.warn)("getPathGenerator - ignoring character: \"".concat(ex, "\"."));
       return this.compiledGlyphs[character] = function (c, size) {};
     }

     if (this.isEvalSupported && IsEvalSupportedCached.value) {
       var args,
           js = '';

       for (var i = 0, ii = cmds.length; i < ii; i++) {
         current = cmds[i];

         if (current.args !== undefined) {
           args = current.args.join(',');
         } else {
           args = '';
         }

         js += 'c.' + current.cmd + '(' + args + ');\n';
       }

       return this.compiledGlyphs[character] = new Function('c', 'size', js);
     }

     return this.compiledGlyphs[character] = function (c, size) {
       for (var _i = 0, _ii = cmds.length; _i < _ii; _i++) {
         current = cmds[_i];

         if (current.cmd === 'scale') {
           current.args = [size, -size];
         }

         c[current.cmd].apply(c, current.args);
       }
     };
   }
 }]);

 return FontFaceObject;
}();

exports.FontFaceObject = FontFaceObject;

/***/ }),
/* 153 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var compatibilityParams = Object.create(null);
{
 var isNodeJS = __w_pdfjs_require__(4);

 var userAgent = typeof navigator !== 'undefined' && navigator.userAgent || '';
 var isIE = /Trident/.test(userAgent);
 var isIOSChrome = /CriOS/.test(userAgent);

 (function checkOnBlobSupport() {
   if (isIE || isIOSChrome) {
     compatibilityParams.disableCreateObjectURL = true;
   }
 })();

 (function checkFontFaceAndImage() {
   if (isNodeJS()) {
     compatibilityParams.disableFontFace = true;
     compatibilityParams.nativeImageDecoderSupport = 'none';
   }
 })();
}
exports.apiCompatibilityParams = Object.freeze(compatibilityParams);

/***/ }),
/* 154 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.CanvasGraphics = void 0;

var _util = __w_pdfjs_require__(1);

var _pattern_helper = __w_pdfjs_require__(155);

var MIN_FONT_SIZE = 16;
var MAX_FONT_SIZE = 100;
var MAX_GROUP_SIZE = 4096;
var MIN_WIDTH_FACTOR = 0.65;
var COMPILE_TYPE3_GLYPHS = true;
var MAX_SIZE_TO_COMPILE = 1000;
var FULL_CHUNK_HEIGHT = 16;
var IsLittleEndianCached = {
 get value() {
   return (0, _util.shadow)(IsLittleEndianCached, 'value', (0, _util.isLittleEndian)());
 }

};

function addContextCurrentTransform(ctx) {
 if (!ctx.mozCurrentTransform) {
   ctx._originalSave = ctx.save;
   ctx._originalRestore = ctx.restore;
   ctx._originalRotate = ctx.rotate;
   ctx._originalScale = ctx.scale;
   ctx._originalTranslate = ctx.translate;
   ctx._originalTransform = ctx.transform;
   ctx._originalSetTransform = ctx.setTransform;
   ctx._transformMatrix = ctx._transformMatrix || [1, 0, 0, 1, 0, 0];
   ctx._transformStack = [];
   Object.defineProperty(ctx, 'mozCurrentTransform', {
     get: function getCurrentTransform() {
       return this._transformMatrix;
     }
   });
   Object.defineProperty(ctx, 'mozCurrentTransformInverse', {
     get: function getCurrentTransformInverse() {
       var m = this._transformMatrix;
       var a = m[0],
           b = m[1],
           c = m[2],
           d = m[3],
           e = m[4],
           f = m[5];
       var ad_bc = a * d - b * c;
       var bc_ad = b * c - a * d;
       return [d / ad_bc, b / bc_ad, c / bc_ad, a / ad_bc, (d * e - c * f) / bc_ad, (b * e - a * f) / ad_bc];
     }
   });

   ctx.save = function ctxSave() {
     var old = this._transformMatrix;

     this._transformStack.push(old);

     this._transformMatrix = old.slice(0, 6);

     this._originalSave();
   };

   ctx.restore = function ctxRestore() {
     var prev = this._transformStack.pop();

     if (prev) {
       this._transformMatrix = prev;

       this._originalRestore();
     }
   };

   ctx.translate = function ctxTranslate(x, y) {
     var m = this._transformMatrix;
     m[4] = m[0] * x + m[2] * y + m[4];
     m[5] = m[1] * x + m[3] * y + m[5];

     this._originalTranslate(x, y);
   };

   ctx.scale = function ctxScale(x, y) {
     var m = this._transformMatrix;
     m[0] = m[0] * x;
     m[1] = m[1] * x;
     m[2] = m[2] * y;
     m[3] = m[3] * y;

     this._originalScale(x, y);
   };

   ctx.transform = function ctxTransform(a, b, c, d, e, f) {
     var m = this._transformMatrix;
     this._transformMatrix = [m[0] * a + m[2] * b, m[1] * a + m[3] * b, m[0] * c + m[2] * d, m[1] * c + m[3] * d, m[0] * e + m[2] * f + m[4], m[1] * e + m[3] * f + m[5]];

     ctx._originalTransform(a, b, c, d, e, f);
   };

   ctx.setTransform = function ctxSetTransform(a, b, c, d, e, f) {
     this._transformMatrix = [a, b, c, d, e, f];

     ctx._originalSetTransform(a, b, c, d, e, f);
   };

   ctx.rotate = function ctxRotate(angle) {
     var cosValue = Math.cos(angle);
     var sinValue = Math.sin(angle);
     var m = this._transformMatrix;
     this._transformMatrix = [m[0] * cosValue + m[2] * sinValue, m[1] * cosValue + m[3] * sinValue, m[0] * -sinValue + m[2] * cosValue, m[1] * -sinValue + m[3] * cosValue, m[4], m[5]];

     this._originalRotate(angle);
   };
 }
}

var CachedCanvases = function CachedCanvasesClosure() {
 function CachedCanvases(canvasFactory) {
   this.canvasFactory = canvasFactory;
   this.cache = Object.create(null);
 }

 CachedCanvases.prototype = {
   getCanvas: function CachedCanvases_getCanvas(id, width, height, trackTransform) {
     var canvasEntry;

     if (this.cache[id] !== undefined) {
       canvasEntry = this.cache[id];
       this.canvasFactory.reset(canvasEntry, width, height);
       canvasEntry.context.setTransform(1, 0, 0, 1, 0, 0);
     } else {
       canvasEntry = this.canvasFactory.create(width, height);
       this.cache[id] = canvasEntry;
     }

     if (trackTransform) {
       addContextCurrentTransform(canvasEntry.context);
     }

     return canvasEntry;
   },
   clear: function clear() {
     for (var id in this.cache) {
       var canvasEntry = this.cache[id];
       this.canvasFactory.destroy(canvasEntry);
       delete this.cache[id];
     }
   }
 };
 return CachedCanvases;
}();

function compileType3Glyph(imgData) {
 var POINT_TO_PROCESS_LIMIT = 1000;
 var width = imgData.width,
     height = imgData.height;
 var i,
     j,
     j0,
     width1 = width + 1;
 var points = new Uint8Array(width1 * (height + 1));
 var POINT_TYPES = new Uint8Array([0, 2, 4, 0, 1, 0, 5, 4, 8, 10, 0, 8, 0, 2, 1, 0]);
 var lineSize = width + 7 & ~7,
     data0 = imgData.data;
 var data = new Uint8Array(lineSize * height),
     pos = 0,
     ii;

 for (i = 0, ii = data0.length; i < ii; i++) {
   var mask = 128,
       elem = data0[i];

   while (mask > 0) {
     data[pos++] = elem & mask ? 0 : 255;
     mask >>= 1;
   }
 }

 var count = 0;
 pos = 0;

 if (data[pos] !== 0) {
   points[0] = 1;
   ++count;
 }

 for (j = 1; j < width; j++) {
   if (data[pos] !== data[pos + 1]) {
     points[j] = data[pos] ? 2 : 1;
     ++count;
   }

   pos++;
 }

 if (data[pos] !== 0) {
   points[j] = 2;
   ++count;
 }

 for (i = 1; i < height; i++) {
   pos = i * lineSize;
   j0 = i * width1;

   if (data[pos - lineSize] !== data[pos]) {
     points[j0] = data[pos] ? 1 : 8;
     ++count;
   }

   var sum = (data[pos] ? 4 : 0) + (data[pos - lineSize] ? 8 : 0);

   for (j = 1; j < width; j++) {
     sum = (sum >> 2) + (data[pos + 1] ? 4 : 0) + (data[pos - lineSize + 1] ? 8 : 0);

     if (POINT_TYPES[sum]) {
       points[j0 + j] = POINT_TYPES[sum];
       ++count;
     }

     pos++;
   }

   if (data[pos - lineSize] !== data[pos]) {
     points[j0 + j] = data[pos] ? 2 : 4;
     ++count;
   }

   if (count > POINT_TO_PROCESS_LIMIT) {
     return null;
   }
 }

 pos = lineSize * (height - 1);
 j0 = i * width1;

 if (data[pos] !== 0) {
   points[j0] = 8;
   ++count;
 }

 for (j = 1; j < width; j++) {
   if (data[pos] !== data[pos + 1]) {
     points[j0 + j] = data[pos] ? 4 : 8;
     ++count;
   }

   pos++;
 }

 if (data[pos] !== 0) {
   points[j0 + j] = 4;
   ++count;
 }

 if (count > POINT_TO_PROCESS_LIMIT) {
   return null;
 }

 var steps = new Int32Array([0, width1, -1, 0, -width1, 0, 0, 0, 1]);
 var outlines = [];

 for (i = 0; count && i <= height; i++) {
   var p = i * width1;
   var end = p + width;

   while (p < end && !points[p]) {
     p++;
   }

   if (p === end) {
     continue;
   }

   var coords = [p % width1, i];
   var type = points[p],
       p0 = p,
       pp;

   do {
     var step = steps[type];

     do {
       p += step;
     } while (!points[p]);

     pp = points[p];

     if (pp !== 5 && pp !== 10) {
       type = pp;
       points[p] = 0;
     } else {
       type = pp & 0x33 * type >> 4;
       points[p] &= type >> 2 | type << 2;
     }

     coords.push(p % width1);
     coords.push(p / width1 | 0);

     if (!points[p]) {
       --count;
     }
   } while (p0 !== p);

   outlines.push(coords);
   --i;
 }

 var drawOutline = function drawOutline(c) {
   c.save();
   c.scale(1 / width, -1 / height);
   c.translate(0, -height);
   c.beginPath();

   for (var i = 0, ii = outlines.length; i < ii; i++) {
     var o = outlines[i];
     c.moveTo(o[0], o[1]);

     for (var j = 2, jj = o.length; j < jj; j += 2) {
       c.lineTo(o[j], o[j + 1]);
     }
   }

   c.fill();
   c.beginPath();
   c.restore();
 };

 return drawOutline;
}

var CanvasExtraState = function CanvasExtraStateClosure() {
 function CanvasExtraState() {
   this.alphaIsShape = false;
   this.fontSize = 0;
   this.fontSizeScale = 1;
   this.textMatrix = _util.IDENTITY_MATRIX;
   this.textMatrixScale = 1;
   this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
   this.leading = 0;
   this.x = 0;
   this.y = 0;
   this.lineX = 0;
   this.lineY = 0;
   this.charSpacing = 0;
   this.wordSpacing = 0;
   this.textHScale = 1;
   this.textRenderingMode = _util.TextRenderingMode.FILL;
   this.textRise = 0;
   this.fillColor = '#000000';
   this.strokeColor = '#000000';
   this.patternFill = false;
   this.fillAlpha = 1;
   this.strokeAlpha = 1;
   this.lineWidth = 1;
   this.activeSMask = null;
   this.resumeSMaskCtx = null;
 }

 CanvasExtraState.prototype = {
   clone: function CanvasExtraState_clone() {
     return Object.create(this);
   },
   setCurrentPoint: function CanvasExtraState_setCurrentPoint(x, y) {
     this.x = x;
     this.y = y;
   }
 };
 return CanvasExtraState;
}();

var CanvasGraphics = function CanvasGraphicsClosure() {
 var EXECUTION_TIME = 15;
 var EXECUTION_STEPS = 10;

 function CanvasGraphics(canvasCtx, commonObjs, objs, canvasFactory, webGLContext, imageLayer) {
   this.ctx = canvasCtx;
   this.current = new CanvasExtraState();
   this.stateStack = [];
   this.pendingClip = null;
   this.pendingEOFill = false;
   this.res = null;
   this.xobjs = null;
   this.commonObjs = commonObjs;
   this.objs = objs;
   this.canvasFactory = canvasFactory;
   this.webGLContext = webGLContext;
   this.imageLayer = imageLayer;
   this.groupStack = [];
   this.processingType3 = null;
   this.baseTransform = null;
   this.baseTransformStack = [];
   this.groupLevel = 0;
   this.smaskStack = [];
   this.smaskCounter = 0;
   this.tempSMask = null;
   this.cachedCanvases = new CachedCanvases(this.canvasFactory);

   if (canvasCtx) {
     addContextCurrentTransform(canvasCtx);
   }

   this._cachedGetSinglePixelWidth = null;
 }

 function putBinaryImageData(ctx, imgData) {
   if (typeof ImageData !== 'undefined' && imgData instanceof ImageData) {
     ctx.putImageData(imgData, 0, 0);
     return;
   }

   var height = imgData.height,
       width = imgData.width;
   var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
   var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
   var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
   var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
   var srcPos = 0,
       destPos;
   var src = imgData.data;
   var dest = chunkImgData.data;
   var i, j, thisChunkHeight, elemsInThisChunk;

   if (imgData.kind === _util.ImageKind.GRAYSCALE_1BPP) {
     var srcLength = src.byteLength;
     var dest32 = new Uint32Array(dest.buffer, 0, dest.byteLength >> 2);
     var dest32DataLength = dest32.length;
     var fullSrcDiff = width + 7 >> 3;
     var white = 0xFFFFFFFF;
     var black = IsLittleEndianCached.value ? 0xFF000000 : 0x000000FF;

     for (i = 0; i < totalChunks; i++) {
       thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
       destPos = 0;

       for (j = 0; j < thisChunkHeight; j++) {
         var srcDiff = srcLength - srcPos;
         var k = 0;
         var kEnd = srcDiff > fullSrcDiff ? width : srcDiff * 8 - 7;
         var kEndUnrolled = kEnd & ~7;
         var mask = 0;
         var srcByte = 0;

         for (; k < kEndUnrolled; k += 8) {
           srcByte = src[srcPos++];
           dest32[destPos++] = srcByte & 128 ? white : black;
           dest32[destPos++] = srcByte & 64 ? white : black;
           dest32[destPos++] = srcByte & 32 ? white : black;
           dest32[destPos++] = srcByte & 16 ? white : black;
           dest32[destPos++] = srcByte & 8 ? white : black;
           dest32[destPos++] = srcByte & 4 ? white : black;
           dest32[destPos++] = srcByte & 2 ? white : black;
           dest32[destPos++] = srcByte & 1 ? white : black;
         }

         for (; k < kEnd; k++) {
           if (mask === 0) {
             srcByte = src[srcPos++];
             mask = 128;
           }

           dest32[destPos++] = srcByte & mask ? white : black;
           mask >>= 1;
         }
       }

       while (destPos < dest32DataLength) {
         dest32[destPos++] = 0;
       }

       ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
     }
   } else if (imgData.kind === _util.ImageKind.RGBA_32BPP) {
     j = 0;
     elemsInThisChunk = width * FULL_CHUNK_HEIGHT * 4;

     for (i = 0; i < fullChunks; i++) {
       dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
       srcPos += elemsInThisChunk;
       ctx.putImageData(chunkImgData, 0, j);
       j += FULL_CHUNK_HEIGHT;
     }

     if (i < totalChunks) {
       elemsInThisChunk = width * partialChunkHeight * 4;
       dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
       ctx.putImageData(chunkImgData, 0, j);
     }
   } else if (imgData.kind === _util.ImageKind.RGB_24BPP) {
     thisChunkHeight = FULL_CHUNK_HEIGHT;
     elemsInThisChunk = width * thisChunkHeight;

     for (i = 0; i < totalChunks; i++) {
       if (i >= fullChunks) {
         thisChunkHeight = partialChunkHeight;
         elemsInThisChunk = width * thisChunkHeight;
       }

       destPos = 0;

       for (j = elemsInThisChunk; j--;) {
         dest[destPos++] = src[srcPos++];
         dest[destPos++] = src[srcPos++];
         dest[destPos++] = src[srcPos++];
         dest[destPos++] = 255;
       }

       ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
     }
   } else {
     throw new Error("bad image kind: ".concat(imgData.kind));
   }
 }

 function putBinaryImageMask(ctx, imgData) {
   var height = imgData.height,
       width = imgData.width;
   var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
   var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
   var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
   var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
   var srcPos = 0;
   var src = imgData.data;
   var dest = chunkImgData.data;

   for (var i = 0; i < totalChunks; i++) {
     var thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
     var destPos = 3;

     for (var j = 0; j < thisChunkHeight; j++) {
       var mask = 0;

       for (var k = 0; k < width; k++) {
         if (!mask) {
           var elem = src[srcPos++];
           mask = 128;
         }

         dest[destPos] = elem & mask ? 0 : 255;
         destPos += 4;
         mask >>= 1;
       }
     }

     ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
   }
 }

 function copyCtxState(sourceCtx, destCtx) {
   var properties = ['strokeStyle', 'fillStyle', 'fillRule', 'globalAlpha', 'lineWidth', 'lineCap', 'lineJoin', 'miterLimit', 'globalCompositeOperation', 'font'];

   for (var i = 0, ii = properties.length; i < ii; i++) {
     var property = properties[i];

     if (sourceCtx[property] !== undefined) {
       destCtx[property] = sourceCtx[property];
     }
   }

   if (sourceCtx.setLineDash !== undefined) {
     destCtx.setLineDash(sourceCtx.getLineDash());
     destCtx.lineDashOffset = sourceCtx.lineDashOffset;
   }
 }

 function resetCtxToDefault(ctx) {
   ctx.strokeStyle = '#000000';
   ctx.fillStyle = '#000000';
   ctx.fillRule = 'nonzero';
   ctx.globalAlpha = 1;
   ctx.lineWidth = 1;
   ctx.lineCap = 'butt';
   ctx.lineJoin = 'miter';
   ctx.miterLimit = 10;
   ctx.globalCompositeOperation = 'source-over';
   ctx.font = '10px sans-serif';

   if (ctx.setLineDash !== undefined) {
     ctx.setLineDash([]);
     ctx.lineDashOffset = 0;
   }
 }

 function composeSMaskBackdrop(bytes, r0, g0, b0) {
   var length = bytes.length;

   for (var i = 3; i < length; i += 4) {
     var alpha = bytes[i];

     if (alpha === 0) {
       bytes[i - 3] = r0;
       bytes[i - 2] = g0;
       bytes[i - 1] = b0;
     } else if (alpha < 255) {
       var alpha_ = 255 - alpha;
       bytes[i - 3] = bytes[i - 3] * alpha + r0 * alpha_ >> 8;
       bytes[i - 2] = bytes[i - 2] * alpha + g0 * alpha_ >> 8;
       bytes[i - 1] = bytes[i - 1] * alpha + b0 * alpha_ >> 8;
     }
   }
 }

 function composeSMaskAlpha(maskData, layerData, transferMap) {
   var length = maskData.length;
   var scale = 1 / 255;

   for (var i = 3; i < length; i += 4) {
     var alpha = transferMap ? transferMap[maskData[i]] : maskData[i];
     layerData[i] = layerData[i] * alpha * scale | 0;
   }
 }

 function composeSMaskLuminosity(maskData, layerData, transferMap) {
   var length = maskData.length;

   for (var i = 3; i < length; i += 4) {
     var y = maskData[i - 3] * 77 + maskData[i - 2] * 152 + maskData[i - 1] * 28;
     layerData[i] = transferMap ? layerData[i] * transferMap[y >> 8] >> 8 : layerData[i] * y >> 16;
   }
 }

 function genericComposeSMask(maskCtx, layerCtx, width, height, subtype, backdrop, transferMap) {
   var hasBackdrop = !!backdrop;
   var r0 = hasBackdrop ? backdrop[0] : 0;
   var g0 = hasBackdrop ? backdrop[1] : 0;
   var b0 = hasBackdrop ? backdrop[2] : 0;
   var composeFn;

   if (subtype === 'Luminosity') {
     composeFn = composeSMaskLuminosity;
   } else {
     composeFn = composeSMaskAlpha;
   }

   var PIXELS_TO_PROCESS = 1048576;
   var chunkSize = Math.min(height, Math.ceil(PIXELS_TO_PROCESS / width));

   for (var row = 0; row < height; row += chunkSize) {
     var chunkHeight = Math.min(chunkSize, height - row);
     var maskData = maskCtx.getImageData(0, row, width, chunkHeight);
     var layerData = layerCtx.getImageData(0, row, width, chunkHeight);

     if (hasBackdrop) {
       composeSMaskBackdrop(maskData.data, r0, g0, b0);
     }

     composeFn(maskData.data, layerData.data, transferMap);
     maskCtx.putImageData(layerData, 0, row);
   }
 }

 function composeSMask(ctx, smask, layerCtx, webGLContext) {
   var mask = smask.canvas;
   var maskCtx = smask.context;
   ctx.setTransform(smask.scaleX, 0, 0, smask.scaleY, smask.offsetX, smask.offsetY);
   var backdrop = smask.backdrop || null;

   if (!smask.transferMap && webGLContext.isEnabled) {
     var composed = webGLContext.composeSMask({
       layer: layerCtx.canvas,
       mask: mask,
       properties: {
         subtype: smask.subtype,
         backdrop: backdrop
       }
     });
     ctx.setTransform(1, 0, 0, 1, 0, 0);
     ctx.drawImage(composed, smask.offsetX, smask.offsetY);
     return;
   }

   genericComposeSMask(maskCtx, layerCtx, mask.width, mask.height, smask.subtype, backdrop, smask.transferMap);
   ctx.drawImage(mask, 0, 0);
 }

 var LINE_CAP_STYLES = ['butt', 'round', 'square'];
 var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];
 var NORMAL_CLIP = {};
 var EO_CLIP = {};
 CanvasGraphics.prototype = {
   beginDrawing: function beginDrawing(_ref) {
     var transform = _ref.transform,
         viewport = _ref.viewport,
         _ref$transparency = _ref.transparency,
         transparency = _ref$transparency === void 0 ? false : _ref$transparency,
         _ref$background = _ref.background,
         background = _ref$background === void 0 ? null : _ref$background;
     var width = this.ctx.canvas.width;
     var height = this.ctx.canvas.height;
     this.ctx.save();
     this.ctx.fillStyle = background || 'rgb(255, 255, 255)';
     this.ctx.fillRect(0, 0, width, height);
     this.ctx.restore();

     if (transparency) {
       var transparentCanvas = this.cachedCanvases.getCanvas('transparent', width, height, true);
       this.compositeCtx = this.ctx;
       this.transparentCanvas = transparentCanvas.canvas;
       this.ctx = transparentCanvas.context;
       this.ctx.save();
       this.ctx.transform.apply(this.ctx, this.compositeCtx.mozCurrentTransform);
     }

     this.ctx.save();
     resetCtxToDefault(this.ctx);

     if (transform) {
       this.ctx.transform.apply(this.ctx, transform);
     }

     this.ctx.transform.apply(this.ctx, viewport.transform);
     this.baseTransform = this.ctx.mozCurrentTransform.slice();

     if (this.imageLayer) {
       this.imageLayer.beginLayout();
     }
   },
   executeOperatorList: function CanvasGraphics_executeOperatorList(operatorList, executionStartIdx, continueCallback, stepper) {
     var argsArray = operatorList.argsArray;
     var fnArray = operatorList.fnArray;
     var i = executionStartIdx || 0;
     var argsArrayLen = argsArray.length;

     if (argsArrayLen === i) {
       return i;
     }

     var chunkOperations = argsArrayLen - i > EXECUTION_STEPS && typeof continueCallback === 'function';
     var endTime = chunkOperations ? Date.now() + EXECUTION_TIME : 0;
     var steps = 0;
     var commonObjs = this.commonObjs;
     var objs = this.objs;
     var fnId;

     while (true) {
       if (stepper !== undefined && i === stepper.nextBreakPoint) {
         stepper.breakIt(i, continueCallback);
         return i;
       }

       fnId = fnArray[i];

       if (fnId !== _util.OPS.dependency) {
         this[fnId].apply(this, argsArray[i]);
       } else {
         var _iteratorNormalCompletion = true;
         var _didIteratorError = false;
         var _iteratorError = undefined;

         try {
           for (var _iterator = argsArray[i][Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
             var depObjId = _step.value;
             var objsPool = depObjId.startsWith('g_') ? commonObjs : objs;

             if (!objsPool.has(depObjId)) {
               objsPool.get(depObjId, continueCallback);
               return i;
             }
           }
         } catch (err) {
           _didIteratorError = true;
           _iteratorError = err;
         } finally {
           try {
             if (!_iteratorNormalCompletion && _iterator["return"] != null) {
               _iterator["return"]();
             }
           } finally {
             if (_didIteratorError) {
               throw _iteratorError;
             }
           }
         }
       }

       i++;

       if (i === argsArrayLen) {
         return i;
       }

       if (chunkOperations && ++steps > EXECUTION_STEPS) {
         if (Date.now() > endTime) {
           continueCallback();
           return i;
         }

         steps = 0;
       }
     }
   },
   endDrawing: function CanvasGraphics_endDrawing() {
     if (this.current.activeSMask !== null) {
       this.endSMaskGroup();
     }

     this.ctx.restore();

     if (this.transparentCanvas) {
       this.ctx = this.compositeCtx;
       this.ctx.save();
       this.ctx.setTransform(1, 0, 0, 1, 0, 0);
       this.ctx.drawImage(this.transparentCanvas, 0, 0);
       this.ctx.restore();
       this.transparentCanvas = null;
     }

     this.cachedCanvases.clear();
     this.webGLContext.clear();

     if (this.imageLayer) {
       this.imageLayer.endLayout();
     }
   },
   setLineWidth: function CanvasGraphics_setLineWidth(width) {
     this.current.lineWidth = width;
     this.ctx.lineWidth = width;
   },
   setLineCap: function CanvasGraphics_setLineCap(style) {
     this.ctx.lineCap = LINE_CAP_STYLES[style];
   },
   setLineJoin: function CanvasGraphics_setLineJoin(style) {
     this.ctx.lineJoin = LINE_JOIN_STYLES[style];
   },
   setMiterLimit: function CanvasGraphics_setMiterLimit(limit) {
     this.ctx.miterLimit = limit;
   },
   setDash: function CanvasGraphics_setDash(dashArray, dashPhase) {
     var ctx = this.ctx;

     if (ctx.setLineDash !== undefined) {
       ctx.setLineDash(dashArray);
       ctx.lineDashOffset = dashPhase;
     }
   },
   setRenderingIntent: function setRenderingIntent(intent) {},
   setFlatness: function setFlatness(flatness) {},
   setGState: function CanvasGraphics_setGState(states) {
     for (var i = 0, ii = states.length; i < ii; i++) {
       var state = states[i];
       var key = state[0];
       var value = state[1];

       switch (key) {
         case 'LW':
           this.setLineWidth(value);
           break;

         case 'LC':
           this.setLineCap(value);
           break;

         case 'LJ':
           this.setLineJoin(value);
           break;

         case 'ML':
           this.setMiterLimit(value);
           break;

         case 'D':
           this.setDash(value[0], value[1]);
           break;

         case 'RI':
           this.setRenderingIntent(value);
           break;

         case 'FL':
           this.setFlatness(value);
           break;

         case 'Font':
           this.setFont(value[0], value[1]);
           break;

         case 'CA':
           this.current.strokeAlpha = state[1];
           break;

         case 'ca':
           this.current.fillAlpha = state[1];
           this.ctx.globalAlpha = state[1];
           break;

         case 'BM':
           this.ctx.globalCompositeOperation = value;
           break;

         case 'SMask':
           if (this.current.activeSMask) {
             if (this.stateStack.length > 0 && this.stateStack[this.stateStack.length - 1].activeSMask === this.current.activeSMask) {
               this.suspendSMaskGroup();
             } else {
               this.endSMaskGroup();
             }
           }

           this.current.activeSMask = value ? this.tempSMask : null;

           if (this.current.activeSMask) {
             this.beginSMaskGroup();
           }

           this.tempSMask = null;
           break;
       }
     }
   },
   beginSMaskGroup: function CanvasGraphics_beginSMaskGroup() {
     var activeSMask = this.current.activeSMask;
     var drawnWidth = activeSMask.canvas.width;
     var drawnHeight = activeSMask.canvas.height;
     var cacheId = 'smaskGroupAt' + this.groupLevel;
     var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
     var currentCtx = this.ctx;
     var currentTransform = currentCtx.mozCurrentTransform;
     this.ctx.save();
     var groupCtx = scratchCanvas.context;
     groupCtx.scale(1 / activeSMask.scaleX, 1 / activeSMask.scaleY);
     groupCtx.translate(-activeSMask.offsetX, -activeSMask.offsetY);
     groupCtx.transform.apply(groupCtx, currentTransform);
     activeSMask.startTransformInverse = groupCtx.mozCurrentTransformInverse;
     copyCtxState(currentCtx, groupCtx);
     this.ctx = groupCtx;
     this.setGState([['BM', 'source-over'], ['ca', 1], ['CA', 1]]);
     this.groupStack.push(currentCtx);
     this.groupLevel++;
   },
   suspendSMaskGroup: function CanvasGraphics_endSMaskGroup() {
     var groupCtx = this.ctx;
     this.groupLevel--;
     this.ctx = this.groupStack.pop();
     composeSMask(this.ctx, this.current.activeSMask, groupCtx, this.webGLContext);
     this.ctx.restore();
     this.ctx.save();
     copyCtxState(groupCtx, this.ctx);
     this.current.resumeSMaskCtx = groupCtx;

     var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);

     this.ctx.transform.apply(this.ctx, deltaTransform);
     groupCtx.save();
     groupCtx.setTransform(1, 0, 0, 1, 0, 0);
     groupCtx.clearRect(0, 0, groupCtx.canvas.width, groupCtx.canvas.height);
     groupCtx.restore();
   },
   resumeSMaskGroup: function CanvasGraphics_endSMaskGroup() {
     var groupCtx = this.current.resumeSMaskCtx;
     var currentCtx = this.ctx;
     this.ctx = groupCtx;
     this.groupStack.push(currentCtx);
     this.groupLevel++;
   },
   endSMaskGroup: function CanvasGraphics_endSMaskGroup() {
     var groupCtx = this.ctx;
     this.groupLevel--;
     this.ctx = this.groupStack.pop();
     composeSMask(this.ctx, this.current.activeSMask, groupCtx, this.webGLContext);
     this.ctx.restore();
     copyCtxState(groupCtx, this.ctx);

     var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);

     this.ctx.transform.apply(this.ctx, deltaTransform);
   },
   save: function CanvasGraphics_save() {
     this.ctx.save();
     var old = this.current;
     this.stateStack.push(old);
     this.current = old.clone();
     this.current.resumeSMaskCtx = null;
   },
   restore: function CanvasGraphics_restore() {
     if (this.current.resumeSMaskCtx) {
       this.resumeSMaskGroup();
     }

     if (this.current.activeSMask !== null && (this.stateStack.length === 0 || this.stateStack[this.stateStack.length - 1].activeSMask !== this.current.activeSMask)) {
       this.endSMaskGroup();
     }

     if (this.stateStack.length !== 0) {
       this.current = this.stateStack.pop();
       this.ctx.restore();
       this.pendingClip = null;
       this._cachedGetSinglePixelWidth = null;
     }
   },
   transform: function CanvasGraphics_transform(a, b, c, d, e, f) {
     this.ctx.transform(a, b, c, d, e, f);
     this._cachedGetSinglePixelWidth = null;
   },
   constructPath: function CanvasGraphics_constructPath(ops, args) {
     var ctx = this.ctx;
     var current = this.current;
     var x = current.x,
         y = current.y;

     for (var i = 0, j = 0, ii = ops.length; i < ii; i++) {
       switch (ops[i] | 0) {
         case _util.OPS.rectangle:
           x = args[j++];
           y = args[j++];
           var width = args[j++];
           var height = args[j++];

           if (width === 0) {
             width = this.getSinglePixelWidth();
           }

           if (height === 0) {
             height = this.getSinglePixelWidth();
           }

           var xw = x + width;
           var yh = y + height;
           this.ctx.moveTo(x, y);
           this.ctx.lineTo(xw, y);
           this.ctx.lineTo(xw, yh);
           this.ctx.lineTo(x, yh);
           this.ctx.lineTo(x, y);
           this.ctx.closePath();
           break;

         case _util.OPS.moveTo:
           x = args[j++];
           y = args[j++];
           ctx.moveTo(x, y);
           break;

         case _util.OPS.lineTo:
           x = args[j++];
           y = args[j++];
           ctx.lineTo(x, y);
           break;

         case _util.OPS.curveTo:
           x = args[j + 4];
           y = args[j + 5];
           ctx.bezierCurveTo(args[j], args[j + 1], args[j + 2], args[j + 3], x, y);
           j += 6;
           break;

         case _util.OPS.curveTo2:
           ctx.bezierCurveTo(x, y, args[j], args[j + 1], args[j + 2], args[j + 3]);
           x = args[j + 2];
           y = args[j + 3];
           j += 4;
           break;

         case _util.OPS.curveTo3:
           x = args[j + 2];
           y = args[j + 3];
           ctx.bezierCurveTo(args[j], args[j + 1], x, y, x, y);
           j += 4;
           break;

         case _util.OPS.closePath:
           ctx.closePath();
           break;
       }
     }

     current.setCurrentPoint(x, y);
   },
   closePath: function CanvasGraphics_closePath() {
     this.ctx.closePath();
   },
   stroke: function CanvasGraphics_stroke(consumePath) {
     consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
     var ctx = this.ctx;
     var strokeColor = this.current.strokeColor;
     ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR, this.current.lineWidth);
     ctx.globalAlpha = this.current.strokeAlpha;

     if (strokeColor && strokeColor.hasOwnProperty('type') && strokeColor.type === 'Pattern') {
       ctx.save();
       ctx.strokeStyle = strokeColor.getPattern(ctx, this);
       ctx.stroke();
       ctx.restore();
     } else {
       ctx.stroke();
     }

     if (consumePath) {
       this.consumePath();
     }

     ctx.globalAlpha = this.current.fillAlpha;
   },
   closeStroke: function CanvasGraphics_closeStroke() {
     this.closePath();
     this.stroke();
   },
   fill: function CanvasGraphics_fill(consumePath) {
     consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
     var ctx = this.ctx;
     var fillColor = this.current.fillColor;
     var isPatternFill = this.current.patternFill;
     var needRestore = false;

     if (isPatternFill) {
       ctx.save();

       if (this.baseTransform) {
         ctx.setTransform.apply(ctx, this.baseTransform);
       }

       ctx.fillStyle = fillColor.getPattern(ctx, this);
       needRestore = true;
     }

     if (this.pendingEOFill) {
       ctx.fill('evenodd');
       this.pendingEOFill = false;
     } else {
       ctx.fill();
     }

     if (needRestore) {
       ctx.restore();
     }

     if (consumePath) {
       this.consumePath();
     }
   },
   eoFill: function CanvasGraphics_eoFill() {
     this.pendingEOFill = true;
     this.fill();
   },
   fillStroke: function CanvasGraphics_fillStroke() {
     this.fill(false);
     this.stroke(false);
     this.consumePath();
   },
   eoFillStroke: function CanvasGraphics_eoFillStroke() {
     this.pendingEOFill = true;
     this.fillStroke();
   },
   closeFillStroke: function CanvasGraphics_closeFillStroke() {
     this.closePath();
     this.fillStroke();
   },
   closeEOFillStroke: function CanvasGraphics_closeEOFillStroke() {
     this.pendingEOFill = true;
     this.closePath();
     this.fillStroke();
   },
   endPath: function CanvasGraphics_endPath() {
     this.consumePath();
   },
   clip: function CanvasGraphics_clip() {
     this.pendingClip = NORMAL_CLIP;
   },
   eoClip: function CanvasGraphics_eoClip() {
     this.pendingClip = EO_CLIP;
   },
   beginText: function CanvasGraphics_beginText() {
     this.current.textMatrix = _util.IDENTITY_MATRIX;
     this.current.textMatrixScale = 1;
     this.current.x = this.current.lineX = 0;
     this.current.y = this.current.lineY = 0;
   },
   endText: function CanvasGraphics_endText() {
     var paths = this.pendingTextPaths;
     var ctx = this.ctx;

     if (paths === undefined) {
       ctx.beginPath();
       return;
     }

     ctx.save();
     ctx.beginPath();

     for (var i = 0; i < paths.length; i++) {
       var path = paths[i];
       ctx.setTransform.apply(ctx, path.transform);
       ctx.translate(path.x, path.y);
       path.addToPath(ctx, path.fontSize);
     }

     ctx.restore();
     ctx.clip();
     ctx.beginPath();
     delete this.pendingTextPaths;
   },
   setCharSpacing: function CanvasGraphics_setCharSpacing(spacing) {
     this.current.charSpacing = spacing;
   },
   setWordSpacing: function CanvasGraphics_setWordSpacing(spacing) {
     this.current.wordSpacing = spacing;
   },
   setHScale: function CanvasGraphics_setHScale(scale) {
     this.current.textHScale = scale / 100;
   },
   setLeading: function CanvasGraphics_setLeading(leading) {
     this.current.leading = -leading;
   },
   setFont: function CanvasGraphics_setFont(fontRefName, size) {
     var fontObj = this.commonObjs.get(fontRefName);
     var current = this.current;

     if (!fontObj) {
       throw new Error("Can't find font for ".concat(fontRefName));
     }

     current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;

     if (current.fontMatrix[0] === 0 || current.fontMatrix[3] === 0) {
       (0, _util.warn)('Invalid font matrix for font ' + fontRefName);
     }

     if (size < 0) {
       size = -size;
       current.fontDirection = -1;
     } else {
       current.fontDirection = 1;
     }

     this.current.font = fontObj;
     this.current.fontSize = size;

     if (fontObj.isType3Font) {
       return;
     }

     var name = fontObj.loadedName || 'sans-serif';
     var bold = fontObj.black ? '900' : fontObj.bold ? 'bold' : 'normal';
     var italic = fontObj.italic ? 'italic' : 'normal';
     var typeface = "\"".concat(name, "\", ").concat(fontObj.fallbackName);
     var browserFontSize = size < MIN_FONT_SIZE ? MIN_FONT_SIZE : size > MAX_FONT_SIZE ? MAX_FONT_SIZE : size;
     this.current.fontSizeScale = size / browserFontSize;
     this.ctx.font = "".concat(italic, " ").concat(bold, " ").concat(browserFontSize, "px ").concat(typeface);
   },
   setTextRenderingMode: function CanvasGraphics_setTextRenderingMode(mode) {
     this.current.textRenderingMode = mode;
   },
   setTextRise: function CanvasGraphics_setTextRise(rise) {
     this.current.textRise = rise;
   },
   moveText: function CanvasGraphics_moveText(x, y) {
     this.current.x = this.current.lineX += x;
     this.current.y = this.current.lineY += y;
   },
   setLeadingMoveText: function CanvasGraphics_setLeadingMoveText(x, y) {
     this.setLeading(-y);
     this.moveText(x, y);
   },
   setTextMatrix: function CanvasGraphics_setTextMatrix(a, b, c, d, e, f) {
     this.current.textMatrix = [a, b, c, d, e, f];
     this.current.textMatrixScale = Math.sqrt(a * a + b * b);
     this.current.x = this.current.lineX = 0;
     this.current.y = this.current.lineY = 0;
   },
   nextLine: function CanvasGraphics_nextLine() {
     this.moveText(0, this.current.leading);
   },
   paintChar: function paintChar(character, x, y, patternTransform) {
     var ctx = this.ctx;
     var current = this.current;
     var font = current.font;
     var textRenderingMode = current.textRenderingMode;
     var fontSize = current.fontSize / current.fontSizeScale;
     var fillStrokeMode = textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;
     var isAddToPathSet = !!(textRenderingMode & _util.TextRenderingMode.ADD_TO_PATH_FLAG);
     var patternFill = current.patternFill && font.data;
     var addToPath;

     if (font.disableFontFace || isAddToPathSet || patternFill) {
       addToPath = font.getPathGenerator(this.commonObjs, character);
     }

     if (font.disableFontFace || patternFill) {
       ctx.save();
       ctx.translate(x, y);
       ctx.beginPath();
       addToPath(ctx, fontSize);

       if (patternTransform) {
         ctx.setTransform.apply(ctx, patternTransform);
       }

       if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
         ctx.fill();
       }

       if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
         ctx.stroke();
       }

       ctx.restore();
     } else {
       if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
         ctx.fillText(character, x, y);
       }

       if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
         ctx.strokeText(character, x, y);
       }
     }

     if (isAddToPathSet) {
       var paths = this.pendingTextPaths || (this.pendingTextPaths = []);
       paths.push({
         transform: ctx.mozCurrentTransform,
         x: x,
         y: y,
         fontSize: fontSize,
         addToPath: addToPath
       });
     }
   },

   get isFontSubpixelAAEnabled() {
     var _this$cachedCanvases$ = this.cachedCanvases.getCanvas('isFontSubpixelAAEnabled', 10, 10),
         ctx = _this$cachedCanvases$.context;

     ctx.scale(1.5, 1);
     ctx.fillText('I', 0, 10);
     var data = ctx.getImageData(0, 0, 10, 10).data;
     var enabled = false;

     for (var i = 3; i < data.length; i += 4) {
       if (data[i] > 0 && data[i] < 255) {
         enabled = true;
         break;
       }
     }

     return (0, _util.shadow)(this, 'isFontSubpixelAAEnabled', enabled);
   },

   showText: function CanvasGraphics_showText(glyphs) {
     var current = this.current;
     var font = current.font;

     if (font.isType3Font) {
       return this.showType3Text(glyphs);
     }

     var fontSize = current.fontSize;

     if (fontSize === 0) {
       return undefined;
     }

     var ctx = this.ctx;
     var fontSizeScale = current.fontSizeScale;
     var charSpacing = current.charSpacing;
     var wordSpacing = current.wordSpacing;
     var fontDirection = current.fontDirection;
     var textHScale = current.textHScale * fontDirection;
     var glyphsLength = glyphs.length;
     var vertical = font.vertical;
     var spacingDir = vertical ? 1 : -1;
     var defaultVMetrics = font.defaultVMetrics;
     var widthAdvanceScale = fontSize * current.fontMatrix[0];
     var simpleFillText = current.textRenderingMode === _util.TextRenderingMode.FILL && !font.disableFontFace && !current.patternFill;
     ctx.save();
     var patternTransform;

     if (current.patternFill) {
       ctx.save();
       var pattern = current.fillColor.getPattern(ctx, this);
       patternTransform = ctx.mozCurrentTransform;
       ctx.restore();
       ctx.fillStyle = pattern;
     }

     ctx.transform.apply(ctx, current.textMatrix);
     ctx.translate(current.x, current.y + current.textRise);

     if (fontDirection > 0) {
       ctx.scale(textHScale, -1);
     } else {
       ctx.scale(textHScale, 1);
     }

     var lineWidth = current.lineWidth;
     var scale = current.textMatrixScale;

     if (scale === 0 || lineWidth === 0) {
       var fillStrokeMode = current.textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;

       if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
         this._cachedGetSinglePixelWidth = null;
         lineWidth = this.getSinglePixelWidth() * MIN_WIDTH_FACTOR;
       }
     } else {
       lineWidth /= scale;
     }

     if (fontSizeScale !== 1.0) {
       ctx.scale(fontSizeScale, fontSizeScale);
       lineWidth /= fontSizeScale;
     }

     ctx.lineWidth = lineWidth;
     var x = 0,
         i;

     for (i = 0; i < glyphsLength; ++i) {
       var glyph = glyphs[i];

       if ((0, _util.isNum)(glyph)) {
         x += spacingDir * glyph * fontSize / 1000;
         continue;
       }

       var restoreNeeded = false;
       var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
       var character = glyph.fontChar;
       var accent = glyph.accent;
       var scaledX, scaledY, scaledAccentX, scaledAccentY;
       var width = glyph.width;

       if (vertical) {
         var vmetric, vx, vy;
         vmetric = glyph.vmetric || defaultVMetrics;
         vx = glyph.vmetric ? vmetric[1] : width * 0.5;
         vx = -vx * widthAdvanceScale;
         vy = vmetric[2] * widthAdvanceScale;
         width = vmetric ? -vmetric[0] : width;
         scaledX = vx / fontSizeScale;
         scaledY = (x + vy) / fontSizeScale;
       } else {
         scaledX = x / fontSizeScale;
         scaledY = 0;
       }

       if (font.remeasure && width > 0) {
         var measuredWidth = ctx.measureText(character).width * 1000 / fontSize * fontSizeScale;

         if (width < measuredWidth && this.isFontSubpixelAAEnabled) {
           var characterScaleX = width / measuredWidth;
           restoreNeeded = true;
           ctx.save();
           ctx.scale(characterScaleX, 1);
           scaledX /= characterScaleX;
         } else if (width !== measuredWidth) {
           scaledX += (width - measuredWidth) / 2000 * fontSize / fontSizeScale;
         }
       }

       if (glyph.isInFont || font.missingFile) {
         if (simpleFillText && !accent) {
           ctx.fillText(character, scaledX, scaledY);
         } else {
           this.paintChar(character, scaledX, scaledY, patternTransform);

           if (accent) {
             scaledAccentX = scaledX + accent.offset.x / fontSizeScale;
             scaledAccentY = scaledY - accent.offset.y / fontSizeScale;
             this.paintChar(accent.fontChar, scaledAccentX, scaledAccentY, patternTransform);
           }
         }
       }

       var charWidth = width * widthAdvanceScale + spacing * fontDirection;
       x += charWidth;

       if (restoreNeeded) {
         ctx.restore();
       }
     }

     if (vertical) {
       current.y -= x * textHScale;
     } else {
       current.x += x * textHScale;
     }

     ctx.restore();
   },
   showType3Text: function CanvasGraphics_showType3Text(glyphs) {
     var ctx = this.ctx;
     var current = this.current;
     var font = current.font;
     var fontSize = current.fontSize;
     var fontDirection = current.fontDirection;
     var spacingDir = font.vertical ? 1 : -1;
     var charSpacing = current.charSpacing;
     var wordSpacing = current.wordSpacing;
     var textHScale = current.textHScale * fontDirection;
     var fontMatrix = current.fontMatrix || _util.FONT_IDENTITY_MATRIX;
     var glyphsLength = glyphs.length;
     var isTextInvisible = current.textRenderingMode === _util.TextRenderingMode.INVISIBLE;
     var i, glyph, width, spacingLength;

     if (isTextInvisible || fontSize === 0) {
       return;
     }

     this._cachedGetSinglePixelWidth = null;
     ctx.save();
     ctx.transform.apply(ctx, current.textMatrix);
     ctx.translate(current.x, current.y);
     ctx.scale(textHScale, fontDirection);

     for (i = 0; i < glyphsLength; ++i) {
       glyph = glyphs[i];

       if ((0, _util.isNum)(glyph)) {
         spacingLength = spacingDir * glyph * fontSize / 1000;
         this.ctx.translate(spacingLength, 0);
         current.x += spacingLength * textHScale;
         continue;
       }

       var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
       var operatorList = font.charProcOperatorList[glyph.operatorListId];

       if (!operatorList) {
         (0, _util.warn)("Type3 character \"".concat(glyph.operatorListId, "\" is not available."));
         continue;
       }

       this.processingType3 = glyph;
       this.save();
       ctx.scale(fontSize, fontSize);
       ctx.transform.apply(ctx, fontMatrix);
       this.executeOperatorList(operatorList);
       this.restore();

       var transformed = _util.Util.applyTransform([glyph.width, 0], fontMatrix);

       width = transformed[0] * fontSize + spacing;
       ctx.translate(width, 0);
       current.x += width * textHScale;
     }

     ctx.restore();
     this.processingType3 = null;
   },
   setCharWidth: function CanvasGraphics_setCharWidth(xWidth, yWidth) {},
   setCharWidthAndBounds: function CanvasGraphics_setCharWidthAndBounds(xWidth, yWidth, llx, lly, urx, ury) {
     this.ctx.rect(llx, lly, urx - llx, ury - lly);
     this.clip();
     this.endPath();
   },
   getColorN_Pattern: function CanvasGraphics_getColorN_Pattern(IR) {
     var _this = this;

     var pattern;

     if (IR[0] === 'TilingPattern') {
       var color = IR[1];
       var baseTransform = this.baseTransform || this.ctx.mozCurrentTransform.slice();
       var canvasGraphicsFactory = {
         createCanvasGraphics: function createCanvasGraphics(ctx) {
           return new CanvasGraphics(ctx, _this.commonObjs, _this.objs, _this.canvasFactory, _this.webGLContext);
         }
       };
       pattern = new _pattern_helper.TilingPattern(IR, color, this.ctx, canvasGraphicsFactory, baseTransform);
     } else {
       pattern = (0, _pattern_helper.getShadingPatternFromIR)(IR);
     }

     return pattern;
   },
   setStrokeColorN: function CanvasGraphics_setStrokeColorN() {
     this.current.strokeColor = this.getColorN_Pattern(arguments);
   },
   setFillColorN: function CanvasGraphics_setFillColorN() {
     this.current.fillColor = this.getColorN_Pattern(arguments);
     this.current.patternFill = true;
   },
   setStrokeRGBColor: function CanvasGraphics_setStrokeRGBColor(r, g, b) {
     var color = _util.Util.makeCssRgb(r, g, b);

     this.ctx.strokeStyle = color;
     this.current.strokeColor = color;
   },
   setFillRGBColor: function CanvasGraphics_setFillRGBColor(r, g, b) {
     var color = _util.Util.makeCssRgb(r, g, b);

     this.ctx.fillStyle = color;
     this.current.fillColor = color;
     this.current.patternFill = false;
   },
   shadingFill: function CanvasGraphics_shadingFill(patternIR) {
     var ctx = this.ctx;
     this.save();
     var pattern = (0, _pattern_helper.getShadingPatternFromIR)(patternIR);
     ctx.fillStyle = pattern.getPattern(ctx, this, true);
     var inv = ctx.mozCurrentTransformInverse;

     if (inv) {
       var canvas = ctx.canvas;
       var width = canvas.width;
       var height = canvas.height;

       var bl = _util.Util.applyTransform([0, 0], inv);

       var br = _util.Util.applyTransform([0, height], inv);

       var ul = _util.Util.applyTransform([width, 0], inv);

       var ur = _util.Util.applyTransform([width, height], inv);

       var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
       var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
       var x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
       var y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
       this.ctx.fillRect(x0, y0, x1 - x0, y1 - y0);
     } else {
       this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10);
     }

     this.restore();
   },
   beginInlineImage: function CanvasGraphics_beginInlineImage() {
     (0, _util.unreachable)('Should not call beginInlineImage');
   },
   beginImageData: function CanvasGraphics_beginImageData() {
     (0, _util.unreachable)('Should not call beginImageData');
   },
   paintFormXObjectBegin: function CanvasGraphics_paintFormXObjectBegin(matrix, bbox) {
     this.save();
     this.baseTransformStack.push(this.baseTransform);

     if (Array.isArray(matrix) && matrix.length === 6) {
       this.transform.apply(this, matrix);
     }

     this.baseTransform = this.ctx.mozCurrentTransform;

     if (bbox) {
       var width = bbox[2] - bbox[0];
       var height = bbox[3] - bbox[1];
       this.ctx.rect(bbox[0], bbox[1], width, height);
       this.clip();
       this.endPath();
     }
   },
   paintFormXObjectEnd: function CanvasGraphics_paintFormXObjectEnd() {
     this.restore();
     this.baseTransform = this.baseTransformStack.pop();
   },
   beginGroup: function CanvasGraphics_beginGroup(group) {
     this.save();
     var currentCtx = this.ctx;

     if (!group.isolated) {
       (0, _util.info)('TODO: Support non-isolated groups.');
     }

     if (group.knockout) {
       (0, _util.warn)('Knockout groups not supported.');
     }

     var currentTransform = currentCtx.mozCurrentTransform;

     if (group.matrix) {
       currentCtx.transform.apply(currentCtx, group.matrix);
     }

     if (!group.bbox) {
       throw new Error('Bounding box is required.');
     }

     var bounds = _util.Util.getAxialAlignedBoundingBox(group.bbox, currentCtx.mozCurrentTransform);

     var canvasBounds = [0, 0, currentCtx.canvas.width, currentCtx.canvas.height];
     bounds = _util.Util.intersect(bounds, canvasBounds) || [0, 0, 0, 0];
     var offsetX = Math.floor(bounds[0]);
     var offsetY = Math.floor(bounds[1]);
     var drawnWidth = Math.max(Math.ceil(bounds[2]) - offsetX, 1);
     var drawnHeight = Math.max(Math.ceil(bounds[3]) - offsetY, 1);
     var scaleX = 1,
         scaleY = 1;

     if (drawnWidth > MAX_GROUP_SIZE) {
       scaleX = drawnWidth / MAX_GROUP_SIZE;
       drawnWidth = MAX_GROUP_SIZE;
     }

     if (drawnHeight > MAX_GROUP_SIZE) {
       scaleY = drawnHeight / MAX_GROUP_SIZE;
       drawnHeight = MAX_GROUP_SIZE;
     }

     var cacheId = 'groupAt' + this.groupLevel;

     if (group.smask) {
       cacheId += '_smask_' + this.smaskCounter++ % 2;
     }

     var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
     var groupCtx = scratchCanvas.context;
     groupCtx.scale(1 / scaleX, 1 / scaleY);
     groupCtx.translate(-offsetX, -offsetY);
     groupCtx.transform.apply(groupCtx, currentTransform);

     if (group.smask) {
       this.smaskStack.push({
         canvas: scratchCanvas.canvas,
         context: groupCtx,
         offsetX: offsetX,
         offsetY: offsetY,
         scaleX: scaleX,
         scaleY: scaleY,
         subtype: group.smask.subtype,
         backdrop: group.smask.backdrop,
         transferMap: group.smask.transferMap || null,
         startTransformInverse: null
       });
     } else {
       currentCtx.setTransform(1, 0, 0, 1, 0, 0);
       currentCtx.translate(offsetX, offsetY);
       currentCtx.scale(scaleX, scaleY);
     }

     copyCtxState(currentCtx, groupCtx);
     this.ctx = groupCtx;
     this.setGState([['BM', 'source-over'], ['ca', 1], ['CA', 1]]);
     this.groupStack.push(currentCtx);
     this.groupLevel++;
     this.current.activeSMask = null;
   },
   endGroup: function CanvasGraphics_endGroup(group) {
     this.groupLevel--;
     var groupCtx = this.ctx;
     this.ctx = this.groupStack.pop();

     if (this.ctx.imageSmoothingEnabled !== undefined) {
       this.ctx.imageSmoothingEnabled = false;
     } else {
       this.ctx.mozImageSmoothingEnabled = false;
     }

     if (group.smask) {
       this.tempSMask = this.smaskStack.pop();
     } else {
       this.ctx.drawImage(groupCtx.canvas, 0, 0);
     }

     this.restore();
   },
   beginAnnotations: function CanvasGraphics_beginAnnotations() {
     this.save();

     if (this.baseTransform) {
       this.ctx.setTransform.apply(this.ctx, this.baseTransform);
     }
   },
   endAnnotations: function CanvasGraphics_endAnnotations() {
     this.restore();
   },
   beginAnnotation: function CanvasGraphics_beginAnnotation(rect, transform, matrix) {
     this.save();
     resetCtxToDefault(this.ctx);
     this.current = new CanvasExtraState();

     if (Array.isArray(rect) && rect.length === 4) {
       var width = rect[2] - rect[0];
       var height = rect[3] - rect[1];
       this.ctx.rect(rect[0], rect[1], width, height);
       this.clip();
       this.endPath();
     }

     this.transform.apply(this, transform);
     this.transform.apply(this, matrix);
   },
   endAnnotation: function CanvasGraphics_endAnnotation() {
     this.restore();
   },
   paintJpegXObject: function CanvasGraphics_paintJpegXObject(objId, w, h) {
     var domImage = this.processingType3 ? this.commonObjs.get(objId) : this.objs.get(objId);

     if (!domImage) {
       (0, _util.warn)('Dependent image isn\'t ready yet');
       return;
     }

     this.save();
     var ctx = this.ctx;
     ctx.scale(1 / w, -1 / h);
     ctx.drawImage(domImage, 0, 0, domImage.width, domImage.height, 0, -h, w, h);

     if (this.imageLayer) {
       var currentTransform = ctx.mozCurrentTransformInverse;
       var position = this.getCanvasPosition(0, 0);
       this.imageLayer.appendImage({
         objId: objId,
         left: position[0],
         top: position[1],
         width: w / currentTransform[0],
         height: h / currentTransform[3]
       });
     }

     this.restore();
   },
   paintImageMaskXObject: function CanvasGraphics_paintImageMaskXObject(img) {
     var ctx = this.ctx;
     var width = img.width,
         height = img.height;
     var fillColor = this.current.fillColor;
     var isPatternFill = this.current.patternFill;
     var glyph = this.processingType3;

     if (COMPILE_TYPE3_GLYPHS && glyph && glyph.compiled === undefined) {
       if (width <= MAX_SIZE_TO_COMPILE && height <= MAX_SIZE_TO_COMPILE) {
         glyph.compiled = compileType3Glyph({
           data: img.data,
           width: width,
           height: height
         });
       } else {
         glyph.compiled = null;
       }
     }

     if (glyph && glyph.compiled) {
       glyph.compiled(ctx);
       return;
     }

     var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
     var maskCtx = maskCanvas.context;
     maskCtx.save();
     putBinaryImageMask(maskCtx, img);
     maskCtx.globalCompositeOperation = 'source-in';
     maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
     maskCtx.fillRect(0, 0, width, height);
     maskCtx.restore();
     this.paintInlineImageXObject(maskCanvas.canvas);
   },
   paintImageMaskXObjectRepeat: function CanvasGraphics_paintImageMaskXObjectRepeat(imgData, scaleX, scaleY, positions) {
     var width = imgData.width;
     var height = imgData.height;
     var fillColor = this.current.fillColor;
     var isPatternFill = this.current.patternFill;
     var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
     var maskCtx = maskCanvas.context;
     maskCtx.save();
     putBinaryImageMask(maskCtx, imgData);
     maskCtx.globalCompositeOperation = 'source-in';
     maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
     maskCtx.fillRect(0, 0, width, height);
     maskCtx.restore();
     var ctx = this.ctx;

     for (var i = 0, ii = positions.length; i < ii; i += 2) {
       ctx.save();
       ctx.transform(scaleX, 0, 0, scaleY, positions[i], positions[i + 1]);
       ctx.scale(1, -1);
       ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
       ctx.restore();
     }
   },
   paintImageMaskXObjectGroup: function CanvasGraphics_paintImageMaskXObjectGroup(images) {
     var ctx = this.ctx;
     var fillColor = this.current.fillColor;
     var isPatternFill = this.current.patternFill;

     for (var i = 0, ii = images.length; i < ii; i++) {
       var image = images[i];
       var width = image.width,
           height = image.height;
       var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
       var maskCtx = maskCanvas.context;
       maskCtx.save();
       putBinaryImageMask(maskCtx, image);
       maskCtx.globalCompositeOperation = 'source-in';
       maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
       maskCtx.fillRect(0, 0, width, height);
       maskCtx.restore();
       ctx.save();
       ctx.transform.apply(ctx, image.transform);
       ctx.scale(1, -1);
       ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
       ctx.restore();
     }
   },
   paintImageXObject: function CanvasGraphics_paintImageXObject(objId) {
     var imgData = this.processingType3 ? this.commonObjs.get(objId) : this.objs.get(objId);

     if (!imgData) {
       (0, _util.warn)('Dependent image isn\'t ready yet');
       return;
     }

     this.paintInlineImageXObject(imgData);
   },
   paintImageXObjectRepeat: function CanvasGraphics_paintImageXObjectRepeat(objId, scaleX, scaleY, positions) {
     var imgData = this.processingType3 ? this.commonObjs.get(objId) : this.objs.get(objId);

     if (!imgData) {
       (0, _util.warn)('Dependent image isn\'t ready yet');
       return;
     }

     var width = imgData.width;
     var height = imgData.height;
     var map = [];

     for (var i = 0, ii = positions.length; i < ii; i += 2) {
       map.push({
         transform: [scaleX, 0, 0, scaleY, positions[i], positions[i + 1]],
         x: 0,
         y: 0,
         w: width,
         h: height
       });
     }

     this.paintInlineImageXObjectGroup(imgData, map);
   },
   paintInlineImageXObject: function CanvasGraphics_paintInlineImageXObject(imgData) {
     var width = imgData.width;
     var height = imgData.height;
     var ctx = this.ctx;
     this.save();
     ctx.scale(1 / width, -1 / height);
     var currentTransform = ctx.mozCurrentTransformInverse;
     var a = currentTransform[0],
         b = currentTransform[1];
     var widthScale = Math.max(Math.sqrt(a * a + b * b), 1);
     var c = currentTransform[2],
         d = currentTransform[3];
     var heightScale = Math.max(Math.sqrt(c * c + d * d), 1);
     var imgToPaint, tmpCanvas;

     if (typeof HTMLElement === 'function' && imgData instanceof HTMLElement || !imgData.data) {
       imgToPaint = imgData;
     } else {
       tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', width, height);
       var tmpCtx = tmpCanvas.context;
       putBinaryImageData(tmpCtx, imgData);
       imgToPaint = tmpCanvas.canvas;
     }

     var paintWidth = width,
         paintHeight = height;
     var tmpCanvasId = 'prescale1';

     while (widthScale > 2 && paintWidth > 1 || heightScale > 2 && paintHeight > 1) {
       var newWidth = paintWidth,
           newHeight = paintHeight;

       if (widthScale > 2 && paintWidth > 1) {
         newWidth = Math.ceil(paintWidth / 2);
         widthScale /= paintWidth / newWidth;
       }

       if (heightScale > 2 && paintHeight > 1) {
         newHeight = Math.ceil(paintHeight / 2);
         heightScale /= paintHeight / newHeight;
       }

       tmpCanvas = this.cachedCanvases.getCanvas(tmpCanvasId, newWidth, newHeight);
       tmpCtx = tmpCanvas.context;
       tmpCtx.clearRect(0, 0, newWidth, newHeight);
       tmpCtx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, 0, newWidth, newHeight);
       imgToPaint = tmpCanvas.canvas;
       paintWidth = newWidth;
       paintHeight = newHeight;
       tmpCanvasId = tmpCanvasId === 'prescale1' ? 'prescale2' : 'prescale1';
     }

     ctx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, -height, width, height);

     if (this.imageLayer) {
       var position = this.getCanvasPosition(0, -height);
       this.imageLayer.appendImage({
         imgData: imgData,
         left: position[0],
         top: position[1],
         width: width / currentTransform[0],
         height: height / currentTransform[3]
       });
     }

     this.restore();
   },
   paintInlineImageXObjectGroup: function CanvasGraphics_paintInlineImageXObjectGroup(imgData, map) {
     var ctx = this.ctx;
     var w = imgData.width;
     var h = imgData.height;
     var tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', w, h);
     var tmpCtx = tmpCanvas.context;
     putBinaryImageData(tmpCtx, imgData);

     for (var i = 0, ii = map.length; i < ii; i++) {
       var entry = map[i];
       ctx.save();
       ctx.transform.apply(ctx, entry.transform);
       ctx.scale(1, -1);
       ctx.drawImage(tmpCanvas.canvas, entry.x, entry.y, entry.w, entry.h, 0, -1, 1, 1);

       if (this.imageLayer) {
         var position = this.getCanvasPosition(entry.x, entry.y);
         this.imageLayer.appendImage({
           imgData: imgData,
           left: position[0],
           top: position[1],
           width: w,
           height: h
         });
       }

       ctx.restore();
     }
   },
   paintSolidColorImageMask: function CanvasGraphics_paintSolidColorImageMask() {
     this.ctx.fillRect(0, 0, 1, 1);
   },
   paintXObject: function CanvasGraphics_paintXObject() {
     (0, _util.warn)('Unsupported \'paintXObject\' command.');
   },
   markPoint: function CanvasGraphics_markPoint(tag) {},
   markPointProps: function CanvasGraphics_markPointProps(tag, properties) {},
   beginMarkedContent: function CanvasGraphics_beginMarkedContent(tag) {},
   beginMarkedContentProps: function CanvasGraphics_beginMarkedContentProps(tag, properties) {},
   endMarkedContent: function CanvasGraphics_endMarkedContent() {},
   beginCompat: function CanvasGraphics_beginCompat() {},
   endCompat: function CanvasGraphics_endCompat() {},
   consumePath: function CanvasGraphics_consumePath() {
     var ctx = this.ctx;

     if (this.pendingClip) {
       if (this.pendingClip === EO_CLIP) {
         ctx.clip('evenodd');
       } else {
         ctx.clip();
       }

       this.pendingClip = null;
     }

     ctx.beginPath();
   },
   getSinglePixelWidth: function getSinglePixelWidth(scale) {
     if (this._cachedGetSinglePixelWidth === null) {
       var inverse = this.ctx.mozCurrentTransformInverse;
       this._cachedGetSinglePixelWidth = Math.sqrt(Math.max(inverse[0] * inverse[0] + inverse[1] * inverse[1], inverse[2] * inverse[2] + inverse[3] * inverse[3]));
     }

     return this._cachedGetSinglePixelWidth;
   },
   getCanvasPosition: function CanvasGraphics_getCanvasPosition(x, y) {
     var transform = this.ctx.mozCurrentTransform;
     return [transform[0] * x + transform[2] * y + transform[4], transform[1] * x + transform[3] * y + transform[5]];
   }
 };

 for (var op in _util.OPS) {
   CanvasGraphics.prototype[_util.OPS[op]] = CanvasGraphics.prototype[op];
 }

 return CanvasGraphics;
}();

exports.CanvasGraphics = CanvasGraphics;

/***/ }),
/* 155 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.getShadingPatternFromIR = getShadingPatternFromIR;
exports.TilingPattern = void 0;

var _util = __w_pdfjs_require__(1);

var ShadingIRs = {};
ShadingIRs.RadialAxial = {
 fromIR: function RadialAxial_fromIR(raw) {
   var type = raw[1];
   var colorStops = raw[2];
   var p0 = raw[3];
   var p1 = raw[4];
   var r0 = raw[5];
   var r1 = raw[6];
   return {
     type: 'Pattern',
     getPattern: function RadialAxial_getPattern(ctx) {
       var grad;

       if (type === 'axial') {
         grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
       } else if (type === 'radial') {
         grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
       }

       for (var i = 0, ii = colorStops.length; i < ii; ++i) {
         var c = colorStops[i];
         grad.addColorStop(c[0], c[1]);
       }

       return grad;
     }
   };
 }
};

var createMeshCanvas = function createMeshCanvasClosure() {
 function drawTriangle(data, context, p1, p2, p3, c1, c2, c3) {
   var coords = context.coords,
       colors = context.colors;
   var bytes = data.data,
       rowSize = data.width * 4;
   var tmp;

   if (coords[p1 + 1] > coords[p2 + 1]) {
     tmp = p1;
     p1 = p2;
     p2 = tmp;
     tmp = c1;
     c1 = c2;
     c2 = tmp;
   }

   if (coords[p2 + 1] > coords[p3 + 1]) {
     tmp = p2;
     p2 = p3;
     p3 = tmp;
     tmp = c2;
     c2 = c3;
     c3 = tmp;
   }

   if (coords[p1 + 1] > coords[p2 + 1]) {
     tmp = p1;
     p1 = p2;
     p2 = tmp;
     tmp = c1;
     c1 = c2;
     c2 = tmp;
   }

   var x1 = (coords[p1] + context.offsetX) * context.scaleX;
   var y1 = (coords[p1 + 1] + context.offsetY) * context.scaleY;
   var x2 = (coords[p2] + context.offsetX) * context.scaleX;
   var y2 = (coords[p2 + 1] + context.offsetY) * context.scaleY;
   var x3 = (coords[p3] + context.offsetX) * context.scaleX;
   var y3 = (coords[p3 + 1] + context.offsetY) * context.scaleY;

   if (y1 >= y3) {
     return;
   }

   var c1r = colors[c1],
       c1g = colors[c1 + 1],
       c1b = colors[c1 + 2];
   var c2r = colors[c2],
       c2g = colors[c2 + 1],
       c2b = colors[c2 + 2];
   var c3r = colors[c3],
       c3g = colors[c3 + 1],
       c3b = colors[c3 + 2];
   var minY = Math.round(y1),
       maxY = Math.round(y3);
   var xa, car, cag, cab;
   var xb, cbr, cbg, cbb;
   var k;

   for (var y = minY; y <= maxY; y++) {
     if (y < y2) {
       k = y < y1 ? 0 : y1 === y2 ? 1 : (y1 - y) / (y1 - y2);
       xa = x1 - (x1 - x2) * k;
       car = c1r - (c1r - c2r) * k;
       cag = c1g - (c1g - c2g) * k;
       cab = c1b - (c1b - c2b) * k;
     } else {
       k = y > y3 ? 1 : y2 === y3 ? 0 : (y2 - y) / (y2 - y3);
       xa = x2 - (x2 - x3) * k;
       car = c2r - (c2r - c3r) * k;
       cag = c2g - (c2g - c3g) * k;
       cab = c2b - (c2b - c3b) * k;
     }

     k = y < y1 ? 0 : y > y3 ? 1 : (y1 - y) / (y1 - y3);
     xb = x1 - (x1 - x3) * k;
     cbr = c1r - (c1r - c3r) * k;
     cbg = c1g - (c1g - c3g) * k;
     cbb = c1b - (c1b - c3b) * k;
     var x1_ = Math.round(Math.min(xa, xb));
     var x2_ = Math.round(Math.max(xa, xb));
     var j = rowSize * y + x1_ * 4;

     for (var x = x1_; x <= x2_; x++) {
       k = (xa - x) / (xa - xb);
       k = k < 0 ? 0 : k > 1 ? 1 : k;
       bytes[j++] = car - (car - cbr) * k | 0;
       bytes[j++] = cag - (cag - cbg) * k | 0;
       bytes[j++] = cab - (cab - cbb) * k | 0;
       bytes[j++] = 255;
     }
   }
 }

 function drawFigure(data, figure, context) {
   var ps = figure.coords;
   var cs = figure.colors;
   var i, ii;

   switch (figure.type) {
     case 'lattice':
       var verticesPerRow = figure.verticesPerRow;
       var rows = Math.floor(ps.length / verticesPerRow) - 1;
       var cols = verticesPerRow - 1;

       for (i = 0; i < rows; i++) {
         var q = i * verticesPerRow;

         for (var j = 0; j < cols; j++, q++) {
           drawTriangle(data, context, ps[q], ps[q + 1], ps[q + verticesPerRow], cs[q], cs[q + 1], cs[q + verticesPerRow]);
           drawTriangle(data, context, ps[q + verticesPerRow + 1], ps[q + 1], ps[q + verticesPerRow], cs[q + verticesPerRow + 1], cs[q + 1], cs[q + verticesPerRow]);
         }
       }

       break;

     case 'triangles':
       for (i = 0, ii = ps.length; i < ii; i += 3) {
         drawTriangle(data, context, ps[i], ps[i + 1], ps[i + 2], cs[i], cs[i + 1], cs[i + 2]);
       }

       break;

     default:
       throw new Error('illegal figure');
   }
 }

 function createMeshCanvas(bounds, combinesScale, coords, colors, figures, backgroundColor, cachedCanvases, webGLContext) {
   var EXPECTED_SCALE = 1.1;
   var MAX_PATTERN_SIZE = 3000;
   var BORDER_SIZE = 2;
   var offsetX = Math.floor(bounds[0]);
   var offsetY = Math.floor(bounds[1]);
   var boundsWidth = Math.ceil(bounds[2]) - offsetX;
   var boundsHeight = Math.ceil(bounds[3]) - offsetY;
   var width = Math.min(Math.ceil(Math.abs(boundsWidth * combinesScale[0] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
   var height = Math.min(Math.ceil(Math.abs(boundsHeight * combinesScale[1] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
   var scaleX = boundsWidth / width;
   var scaleY = boundsHeight / height;
   var context = {
     coords: coords,
     colors: colors,
     offsetX: -offsetX,
     offsetY: -offsetY,
     scaleX: 1 / scaleX,
     scaleY: 1 / scaleY
   };
   var paddedWidth = width + BORDER_SIZE * 2;
   var paddedHeight = height + BORDER_SIZE * 2;
   var canvas, tmpCanvas, i, ii;

   if (webGLContext.isEnabled) {
     canvas = webGLContext.drawFigures({
       width: width,
       height: height,
       backgroundColor: backgroundColor,
       figures: figures,
       context: context
     });
     tmpCanvas = cachedCanvases.getCanvas('mesh', paddedWidth, paddedHeight, false);
     tmpCanvas.context.drawImage(canvas, BORDER_SIZE, BORDER_SIZE);
     canvas = tmpCanvas.canvas;
   } else {
     tmpCanvas = cachedCanvases.getCanvas('mesh', paddedWidth, paddedHeight, false);
     var tmpCtx = tmpCanvas.context;
     var data = tmpCtx.createImageData(width, height);

     if (backgroundColor) {
       var bytes = data.data;

       for (i = 0, ii = bytes.length; i < ii; i += 4) {
         bytes[i] = backgroundColor[0];
         bytes[i + 1] = backgroundColor[1];
         bytes[i + 2] = backgroundColor[2];
         bytes[i + 3] = 255;
       }
     }

     for (i = 0; i < figures.length; i++) {
       drawFigure(data, figures[i], context);
     }

     tmpCtx.putImageData(data, BORDER_SIZE, BORDER_SIZE);
     canvas = tmpCanvas.canvas;
   }

   return {
     canvas: canvas,
     offsetX: offsetX - BORDER_SIZE * scaleX,
     offsetY: offsetY - BORDER_SIZE * scaleY,
     scaleX: scaleX,
     scaleY: scaleY
   };
 }

 return createMeshCanvas;
}();

ShadingIRs.Mesh = {
 fromIR: function Mesh_fromIR(raw) {
   var coords = raw[2];
   var colors = raw[3];
   var figures = raw[4];
   var bounds = raw[5];
   var matrix = raw[6];
   var background = raw[8];
   return {
     type: 'Pattern',
     getPattern: function Mesh_getPattern(ctx, owner, shadingFill) {
       var scale;

       if (shadingFill) {
         scale = _util.Util.singularValueDecompose2dScale(ctx.mozCurrentTransform);
       } else {
         scale = _util.Util.singularValueDecompose2dScale(owner.baseTransform);

         if (matrix) {
           var matrixScale = _util.Util.singularValueDecompose2dScale(matrix);

           scale = [scale[0] * matrixScale[0], scale[1] * matrixScale[1]];
         }
       }

       var temporaryPatternCanvas = createMeshCanvas(bounds, scale, coords, colors, figures, shadingFill ? null : background, owner.cachedCanvases, owner.webGLContext);

       if (!shadingFill) {
         ctx.setTransform.apply(ctx, owner.baseTransform);

         if (matrix) {
           ctx.transform.apply(ctx, matrix);
         }
       }

       ctx.translate(temporaryPatternCanvas.offsetX, temporaryPatternCanvas.offsetY);
       ctx.scale(temporaryPatternCanvas.scaleX, temporaryPatternCanvas.scaleY);
       return ctx.createPattern(temporaryPatternCanvas.canvas, 'no-repeat');
     }
   };
 }
};
ShadingIRs.Dummy = {
 fromIR: function Dummy_fromIR() {
   return {
     type: 'Pattern',
     getPattern: function Dummy_fromIR_getPattern() {
       return 'hotpink';
     }
   };
 }
};

function getShadingPatternFromIR(raw) {
 var shadingIR = ShadingIRs[raw[0]];

 if (!shadingIR) {
   throw new Error("Unknown IR type: ".concat(raw[0]));
 }

 return shadingIR.fromIR(raw);
}

var TilingPattern = function TilingPatternClosure() {
 var PaintType = {
   COLORED: 1,
   UNCOLORED: 2
 };
 var MAX_PATTERN_SIZE = 3000;

 function TilingPattern(IR, color, ctx, canvasGraphicsFactory, baseTransform) {
   this.operatorList = IR[2];
   this.matrix = IR[3] || [1, 0, 0, 1, 0, 0];
   this.bbox = IR[4];
   this.xstep = IR[5];
   this.ystep = IR[6];
   this.paintType = IR[7];
   this.tilingType = IR[8];
   this.color = color;
   this.canvasGraphicsFactory = canvasGraphicsFactory;
   this.baseTransform = baseTransform;
   this.type = 'Pattern';
   this.ctx = ctx;
 }

 TilingPattern.prototype = {
   createPatternCanvas: function TilinPattern_createPatternCanvas(owner) {
     var operatorList = this.operatorList;
     var bbox = this.bbox;
     var xstep = this.xstep;
     var ystep = this.ystep;
     var paintType = this.paintType;
     var tilingType = this.tilingType;
     var color = this.color;
     var canvasGraphicsFactory = this.canvasGraphicsFactory;
     (0, _util.info)('TilingType: ' + tilingType);
     var x0 = bbox[0],
         y0 = bbox[1],
         x1 = bbox[2],
         y1 = bbox[3];

     var matrixScale = _util.Util.singularValueDecompose2dScale(this.matrix);

     var curMatrixScale = _util.Util.singularValueDecompose2dScale(this.baseTransform);

     var combinedScale = [matrixScale[0] * curMatrixScale[0], matrixScale[1] * curMatrixScale[1]];
     var dimx = this.getSizeAndScale(xstep, this.ctx.canvas.width, combinedScale[0]);
     var dimy = this.getSizeAndScale(ystep, this.ctx.canvas.height, combinedScale[1]);
     var tmpCanvas = owner.cachedCanvases.getCanvas('pattern', dimx.size, dimy.size, true);
     var tmpCtx = tmpCanvas.context;
     var graphics = canvasGraphicsFactory.createCanvasGraphics(tmpCtx);
     graphics.groupLevel = owner.groupLevel;
     this.setFillAndStrokeStyleToContext(graphics, paintType, color);
     graphics.transform(dimx.scale, 0, 0, dimy.scale, 0, 0);
     graphics.transform(1, 0, 0, 1, -x0, -y0);
     this.clipBbox(graphics, bbox, x0, y0, x1, y1);
     graphics.executeOperatorList(operatorList);
     this.ctx.transform(1, 0, 0, 1, x0, y0);
     this.ctx.scale(1 / dimx.scale, 1 / dimy.scale);
     return tmpCanvas.canvas;
   },
   getSizeAndScale: function TilingPattern_getSizeAndScale(step, realOutputSize, scale) {
     step = Math.abs(step);
     var maxSize = Math.max(MAX_PATTERN_SIZE, realOutputSize);
     var size = Math.ceil(step * scale);

     if (size >= maxSize) {
       size = maxSize;
     } else {
       scale = size / step;
     }

     return {
       scale: scale,
       size: size
     };
   },
   clipBbox: function clipBbox(graphics, bbox, x0, y0, x1, y1) {
     if (Array.isArray(bbox) && bbox.length === 4) {
       var bboxWidth = x1 - x0;
       var bboxHeight = y1 - y0;
       graphics.ctx.rect(x0, y0, bboxWidth, bboxHeight);
       graphics.clip();
       graphics.endPath();
     }
   },
   setFillAndStrokeStyleToContext: function setFillAndStrokeStyleToContext(graphics, paintType, color) {
     var context = graphics.ctx,
         current = graphics.current;

     switch (paintType) {
       case PaintType.COLORED:
         var ctx = this.ctx;
         context.fillStyle = ctx.fillStyle;
         context.strokeStyle = ctx.strokeStyle;
         current.fillColor = ctx.fillStyle;
         current.strokeColor = ctx.strokeStyle;
         break;

       case PaintType.UNCOLORED:
         var cssColor = _util.Util.makeCssRgb(color[0], color[1], color[2]);

         context.fillStyle = cssColor;
         context.strokeStyle = cssColor;
         current.fillColor = cssColor;
         current.strokeColor = cssColor;
         break;

       default:
         throw new _util.FormatError("Unsupported paint type: ".concat(paintType));
     }
   },
   getPattern: function TilingPattern_getPattern(ctx, owner) {
     ctx = this.ctx;
     ctx.setTransform.apply(ctx, this.baseTransform);
     ctx.transform.apply(ctx, this.matrix);
     var temporaryPatternCanvas = this.createPatternCanvas(owner);
     return ctx.createPattern(temporaryPatternCanvas, 'repeat');
   }
 };
 return TilingPattern;
}();

exports.TilingPattern = TilingPattern;

/***/ }),
/* 156 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.GlobalWorkerOptions = void 0;
var GlobalWorkerOptions = Object.create(null);
exports.GlobalWorkerOptions = GlobalWorkerOptions;
GlobalWorkerOptions.workerPort = GlobalWorkerOptions.workerPort === undefined ? null : GlobalWorkerOptions.workerPort;
GlobalWorkerOptions.workerSrc = GlobalWorkerOptions.workerSrc === undefined ? '' : GlobalWorkerOptions.workerSrc;

/***/ }),
/* 157 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.MessageHandler = MessageHandler;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function resolveCall(_x, _x2) {
 return _resolveCall.apply(this, arguments);
}

function _resolveCall() {
 _resolveCall = _asyncToGenerator(
 /*#__PURE__*/
 _regenerator["default"].mark(function _callee(fn, args) {
   var thisArg,
       _args = arguments;
   return _regenerator["default"].wrap(function _callee$(_context) {
     while (1) {
       switch (_context.prev = _context.next) {
         case 0:
           thisArg = _args.length > 2 && _args[2] !== undefined ? _args[2] : null;

           if (fn) {
             _context.next = 3;
             break;
           }

           return _context.abrupt("return", undefined);

         case 3:
           return _context.abrupt("return", fn.apply(thisArg, args));

         case 4:
         case "end":
           return _context.stop();
       }
     }
   }, _callee);
 }));
 return _resolveCall.apply(this, arguments);
}

function wrapReason(reason) {
 if (_typeof(reason) !== 'object') {
   return reason;
 }

 switch (reason.name) {
   case 'AbortException':
     return new _util.AbortException(reason.message);

   case 'MissingPDFException':
     return new _util.MissingPDFException(reason.message);

   case 'UnexpectedResponseException':
     return new _util.UnexpectedResponseException(reason.message, reason.status);

   default:
     return new _util.UnknownErrorException(reason.message, reason.details);
 }
}

function makeReasonSerializable(reason) {
 if (!(reason instanceof Error) || reason instanceof _util.AbortException || reason instanceof _util.MissingPDFException || reason instanceof _util.UnexpectedResponseException || reason instanceof _util.UnknownErrorException) {
   return reason;
 }

 return new _util.UnknownErrorException(reason.message, reason.toString());
}

function resolveOrReject(capability, success, reason) {
 if (success) {
   capability.resolve();
 } else {
   capability.reject(reason);
 }
}

function finalize(promise) {
 return Promise.resolve(promise)["catch"](function () {});
}

function MessageHandler(sourceName, targetName, comObj) {
 var _this = this;

 this.sourceName = sourceName;
 this.targetName = targetName;
 this.comObj = comObj;
 this.callbackId = 1;
 this.streamId = 1;
 this.postMessageTransfers = true;
 this.streamSinks = Object.create(null);
 this.streamControllers = Object.create(null);
 var callbacksCapabilities = this.callbacksCapabilities = Object.create(null);
 var ah = this.actionHandler = Object.create(null);

 this._onComObjOnMessage = function (event) {
   var data = event.data;

   if (data.targetName !== _this.sourceName) {
     return;
   }

   if (data.stream) {
     _this._processStreamMessage(data);
   } else if (data.isReply) {
     var callbackId = data.callbackId;

     if (data.callbackId in callbacksCapabilities) {
       var callback = callbacksCapabilities[callbackId];
       delete callbacksCapabilities[callbackId];

       if ('error' in data) {
         callback.reject(wrapReason(data.error));
       } else {
         callback.resolve(data.data);
       }
     } else {
       throw new Error("Cannot resolve callback ".concat(callbackId));
     }
   } else if (data.action in ah) {
     var action = ah[data.action];

     if (data.callbackId) {
       var _sourceName = _this.sourceName;
       var _targetName = data.sourceName;
       Promise.resolve().then(function () {
         return action[0].call(action[1], data.data);
       }).then(function (result) {
         comObj.postMessage({
           sourceName: _sourceName,
           targetName: _targetName,
           isReply: true,
           callbackId: data.callbackId,
           data: result
         });
       }, function (reason) {
         comObj.postMessage({
           sourceName: _sourceName,
           targetName: _targetName,
           isReply: true,
           callbackId: data.callbackId,
           error: makeReasonSerializable(reason)
         });
       });
     } else if (data.streamId) {
       _this._createStreamSink(data);
     } else {
       action[0].call(action[1], data.data);
     }
   } else {
     throw new Error("Unknown action from worker: ".concat(data.action));
   }
 };

 comObj.addEventListener('message', this._onComObjOnMessage);
}

MessageHandler.prototype = {
 on: function on(actionName, handler, scope) {
   var ah = this.actionHandler;

   if (ah[actionName]) {
     throw new Error("There is already an actionName called \"".concat(actionName, "\""));
   }

   ah[actionName] = [handler, scope];
 },
 send: function send(actionName, data, transfers) {
   var message = {
     sourceName: this.sourceName,
     targetName: this.targetName,
     action: actionName,
     data: data
   };
   this.postMessage(message, transfers);
 },
 sendWithPromise: function sendWithPromise(actionName, data, transfers) {
   var callbackId = this.callbackId++;
   var message = {
     sourceName: this.sourceName,
     targetName: this.targetName,
     action: actionName,
     data: data,
     callbackId: callbackId
   };
   var capability = (0, _util.createPromiseCapability)();
   this.callbacksCapabilities[callbackId] = capability;

   try {
     this.postMessage(message, transfers);
   } catch (e) {
     capability.reject(e);
   }

   return capability.promise;
 },
 sendWithStream: function sendWithStream(actionName, data, queueingStrategy, transfers) {
   var _this2 = this;

   var streamId = this.streamId++;
   var sourceName = this.sourceName;
   var targetName = this.targetName;
   return new _util.ReadableStream({
     start: function start(controller) {
       var startCapability = (0, _util.createPromiseCapability)();
       _this2.streamControllers[streamId] = {
         controller: controller,
         startCall: startCapability,
         isClosed: false
       };

       _this2.postMessage({
         sourceName: sourceName,
         targetName: targetName,
         action: actionName,
         streamId: streamId,
         data: data,
         desiredSize: controller.desiredSize
       });

       return startCapability.promise;
     },
     pull: function pull(controller) {
       var pullCapability = (0, _util.createPromiseCapability)();
       _this2.streamControllers[streamId].pullCall = pullCapability;

       _this2.postMessage({
         sourceName: sourceName,
         targetName: targetName,
         stream: 'pull',
         streamId: streamId,
         desiredSize: controller.desiredSize
       });

       return pullCapability.promise;
     },
     cancel: function cancel(reason) {
       var cancelCapability = (0, _util.createPromiseCapability)();
       _this2.streamControllers[streamId].cancelCall = cancelCapability;
       _this2.streamControllers[streamId].isClosed = true;

       _this2.postMessage({
         sourceName: sourceName,
         targetName: targetName,
         stream: 'cancel',
         reason: reason,
         streamId: streamId
       });

       return cancelCapability.promise;
     }
   }, queueingStrategy);
 },
 _createStreamSink: function _createStreamSink(data) {
   var _this3 = this;

   var self = this;
   var action = this.actionHandler[data.action];
   var streamId = data.streamId;
   var desiredSize = data.desiredSize;
   var sourceName = this.sourceName;
   var targetName = data.sourceName;
   var capability = (0, _util.createPromiseCapability)();

   var sendStreamRequest = function sendStreamRequest(_ref) {
     var stream = _ref.stream,
         chunk = _ref.chunk,
         transfers = _ref.transfers,
         success = _ref.success,
         reason = _ref.reason;

     _this3.postMessage({
       sourceName: sourceName,
       targetName: targetName,
       stream: stream,
       streamId: streamId,
       chunk: chunk,
       success: success,
       reason: reason
     }, transfers);
   };

   var streamSink = {
     enqueue: function enqueue(chunk) {
       var size = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
       var transfers = arguments.length > 2 ? arguments[2] : undefined;

       if (this.isCancelled) {
         return;
       }

       var lastDesiredSize = this.desiredSize;
       this.desiredSize -= size;

       if (lastDesiredSize > 0 && this.desiredSize <= 0) {
         this.sinkCapability = (0, _util.createPromiseCapability)();
         this.ready = this.sinkCapability.promise;
       }

       sendStreamRequest({
         stream: 'enqueue',
         chunk: chunk,
         transfers: transfers
       });
     },
     close: function close() {
       if (this.isCancelled) {
         return;
       }

       this.isCancelled = true;
       sendStreamRequest({
         stream: 'close'
       });
       delete self.streamSinks[streamId];
     },
     error: function error(reason) {
       if (this.isCancelled) {
         return;
       }

       this.isCancelled = true;
       sendStreamRequest({
         stream: 'error',
         reason: reason
       });
     },
     sinkCapability: capability,
     onPull: null,
     onCancel: null,
     isCancelled: false,
     desiredSize: desiredSize,
     ready: null
   };
   streamSink.sinkCapability.resolve();
   streamSink.ready = streamSink.sinkCapability.promise;
   this.streamSinks[streamId] = streamSink;
   resolveCall(action[0], [data.data, streamSink], action[1]).then(function () {
     sendStreamRequest({
       stream: 'start_complete',
       success: true
     });
   }, function (reason) {
     sendStreamRequest({
       stream: 'start_complete',
       success: false,
       reason: reason
     });
   });
 },
 _processStreamMessage: function _processStreamMessage(data) {
   var _this4 = this;

   var sourceName = this.sourceName;
   var targetName = data.sourceName;
   var streamId = data.streamId;

   var sendStreamResponse = function sendStreamResponse(_ref2) {
     var stream = _ref2.stream,
         success = _ref2.success,
         reason = _ref2.reason;

     _this4.comObj.postMessage({
       sourceName: sourceName,
       targetName: targetName,
       stream: stream,
       success: success,
       streamId: streamId,
       reason: reason
     });
   };

   var deleteStreamController = function deleteStreamController() {
     Promise.all([_this4.streamControllers[data.streamId].startCall, _this4.streamControllers[data.streamId].pullCall, _this4.streamControllers[data.streamId].cancelCall].map(function (capability) {
       return capability && finalize(capability.promise);
     })).then(function () {
       delete _this4.streamControllers[data.streamId];
     });
   };

   switch (data.stream) {
     case 'start_complete':
       resolveOrReject(this.streamControllers[data.streamId].startCall, data.success, wrapReason(data.reason));
       break;

     case 'pull_complete':
       resolveOrReject(this.streamControllers[data.streamId].pullCall, data.success, wrapReason(data.reason));
       break;

     case 'pull':
       if (!this.streamSinks[data.streamId]) {
         sendStreamResponse({
           stream: 'pull_complete',
           success: true
         });
         break;
       }

       if (this.streamSinks[data.streamId].desiredSize <= 0 && data.desiredSize > 0) {
         this.streamSinks[data.streamId].sinkCapability.resolve();
       }

       this.streamSinks[data.streamId].desiredSize = data.desiredSize;
       resolveCall(this.streamSinks[data.streamId].onPull).then(function () {
         sendStreamResponse({
           stream: 'pull_complete',
           success: true
         });
       }, function (reason) {
         sendStreamResponse({
           stream: 'pull_complete',
           success: false,
           reason: reason
         });
       });
       break;

     case 'enqueue':
       (0, _util.assert)(this.streamControllers[data.streamId], 'enqueue should have stream controller');

       if (!this.streamControllers[data.streamId].isClosed) {
         this.streamControllers[data.streamId].controller.enqueue(data.chunk);
       }

       break;

     case 'close':
       (0, _util.assert)(this.streamControllers[data.streamId], 'close should have stream controller');

       if (this.streamControllers[data.streamId].isClosed) {
         break;
       }

       this.streamControllers[data.streamId].isClosed = true;
       this.streamControllers[data.streamId].controller.close();
       deleteStreamController();
       break;

     case 'error':
       (0, _util.assert)(this.streamControllers[data.streamId], 'error should have stream controller');
       this.streamControllers[data.streamId].controller.error(wrapReason(data.reason));
       deleteStreamController();
       break;

     case 'cancel_complete':
       resolveOrReject(this.streamControllers[data.streamId].cancelCall, data.success, wrapReason(data.reason));
       deleteStreamController();
       break;

     case 'cancel':
       if (!this.streamSinks[data.streamId]) {
         break;
       }

       resolveCall(this.streamSinks[data.streamId].onCancel, [wrapReason(data.reason)]).then(function () {
         sendStreamResponse({
           stream: 'cancel_complete',
           success: true
         });
       }, function (reason) {
         sendStreamResponse({
           stream: 'cancel_complete',
           success: false,
           reason: reason
         });
       });
       this.streamSinks[data.streamId].sinkCapability.reject(wrapReason(data.reason));
       this.streamSinks[data.streamId].isCancelled = true;
       delete this.streamSinks[data.streamId];
       break;

     default:
       throw new Error('Unexpected stream case');
   }
 },
 postMessage: function postMessage(message, transfers) {
   if (transfers && this.postMessageTransfers) {
     this.comObj.postMessage(message, transfers);
   } else {
     this.comObj.postMessage(message);
   }
 },
 destroy: function destroy() {
   this.comObj.removeEventListener('message', this._onComObjOnMessage);
 }
};

/***/ }),
/* 158 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.Metadata = void 0;

var _util = __w_pdfjs_require__(1);

var _xml_parser = __w_pdfjs_require__(159);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var Metadata =
/*#__PURE__*/
function () {
 function Metadata(data) {
   _classCallCheck(this, Metadata);

   (0, _util.assert)(typeof data === 'string', 'Metadata: input is not a string');
   data = this._repair(data);
   var parser = new _xml_parser.SimpleXMLParser();
   var xmlDocument = parser.parseFromString(data);
   this._metadata = Object.create(null);

   if (xmlDocument) {
     this._parse(xmlDocument);
   }
 }

 _createClass(Metadata, [{
   key: "_repair",
   value: function _repair(data) {
     return data.replace(/^([^<]+)/, '').replace(/>\\376\\377([^<]+)/g, function (all, codes) {
       var bytes = codes.replace(/\\([0-3])([0-7])([0-7])/g, function (code, d1, d2, d3) {
         return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);
       }).replace(/&(amp|apos|gt|lt|quot);/g, function (str, name) {
         switch (name) {
           case 'amp':
             return '&';

           case 'apos':
             return '\'';

           case 'gt':
             return '>';

           case 'lt':
             return '<';

           case 'quot':
             return '\"';
         }

         throw new Error("_repair: ".concat(name, " isn't defined."));
       });
       var chars = '';

       for (var i = 0, ii = bytes.length; i < ii; i += 2) {
         var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);

         if (code >= 32 && code < 127 && code !== 60 && code !== 62 && code !== 38) {
           chars += String.fromCharCode(code);
         } else {
           chars += '&#x' + (0x10000 + code).toString(16).substring(1) + ';';
         }
       }

       return '>' + chars;
     });
   }
 }, {
   key: "_parse",
   value: function _parse(xmlDocument) {
     var rdf = xmlDocument.documentElement;

     if (rdf.nodeName.toLowerCase() !== 'rdf:rdf') {
       rdf = rdf.firstChild;

       while (rdf && rdf.nodeName.toLowerCase() !== 'rdf:rdf') {
         rdf = rdf.nextSibling;
       }
     }

     var nodeName = rdf ? rdf.nodeName.toLowerCase() : null;

     if (!rdf || nodeName !== 'rdf:rdf' || !rdf.hasChildNodes()) {
       return;
     }

     var children = rdf.childNodes;

     for (var i = 0, ii = children.length; i < ii; i++) {
       var desc = children[i];

       if (desc.nodeName.toLowerCase() !== 'rdf:description') {
         continue;
       }

       for (var j = 0, jj = desc.childNodes.length; j < jj; j++) {
         if (desc.childNodes[j].nodeName.toLowerCase() !== '#text') {
           var entry = desc.childNodes[j];
           var name = entry.nodeName.toLowerCase();
           this._metadata[name] = entry.textContent.trim();
         }
       }
     }
   }
 }, {
   key: "get",
   value: function get(name) {
     var data = this._metadata[name];
     return typeof data !== 'undefined' ? data : null;
   }
 }, {
   key: "getAll",
   value: function getAll() {
     return this._metadata;
   }
 }, {
   key: "has",
   value: function has(name) {
     return typeof this._metadata[name] !== 'undefined';
   }
 }]);

 return Metadata;
}();

exports.Metadata = Metadata;

/***/ }),
/* 159 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.SimpleXMLParser = void 0;

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }

function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var XMLParserErrorCode = {
 NoError: 0,
 EndOfDocument: -1,
 UnterminatedCdat: -2,
 UnterminatedXmlDeclaration: -3,
 UnterminatedDoctypeDeclaration: -4,
 UnterminatedComment: -5,
 MalformedElement: -6,
 OutOfMemory: -7,
 UnterminatedAttributeValue: -8,
 UnterminatedElement: -9,
 ElementNeverBegun: -10
};

function isWhitespace(s, index) {
 var ch = s[index];
 return ch === ' ' || ch === '\n' || ch === '\r' || ch === '\t';
}

function isWhitespaceString(s) {
 for (var i = 0, ii = s.length; i < ii; i++) {
   if (!isWhitespace(s, i)) {
     return false;
   }
 }

 return true;
}

var XMLParserBase =
/*#__PURE__*/
function () {
 function XMLParserBase() {
   _classCallCheck(this, XMLParserBase);
 }

 _createClass(XMLParserBase, [{
   key: "_resolveEntities",
   value: function _resolveEntities(s) {
     var _this = this;

     return s.replace(/&([^;]+);/g, function (all, entity) {
       if (entity.substring(0, 2) === '#x') {
         return String.fromCharCode(parseInt(entity.substring(2), 16));
       } else if (entity.substring(0, 1) === '#') {
         return String.fromCharCode(parseInt(entity.substring(1), 10));
       }

       switch (entity) {
         case 'lt':
           return '<';

         case 'gt':
           return '>';

         case 'amp':
           return '&';

         case 'quot':
           return '\"';
       }

       return _this.onResolveEntity(entity);
     });
   }
 }, {
   key: "_parseContent",
   value: function _parseContent(s, start) {
     var pos = start,
         name,
         attributes = [];

     function skipWs() {
       while (pos < s.length && isWhitespace(s, pos)) {
         ++pos;
       }
     }

     while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== '>' && s[pos] !== '/') {
       ++pos;
     }

     name = s.substring(start, pos);
     skipWs();

     while (pos < s.length && s[pos] !== '>' && s[pos] !== '/' && s[pos] !== '?') {
       skipWs();
       var attrName = '',
           attrValue = '';

       while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== '=') {
         attrName += s[pos];
         ++pos;
       }

       skipWs();

       if (s[pos] !== '=') {
         return null;
       }

       ++pos;
       skipWs();
       var attrEndChar = s[pos];

       if (attrEndChar !== '\"' && attrEndChar !== '\'') {
         return null;
       }

       var attrEndIndex = s.indexOf(attrEndChar, ++pos);

       if (attrEndIndex < 0) {
         return null;
       }

       attrValue = s.substring(pos, attrEndIndex);
       attributes.push({
         name: attrName,
         value: this._resolveEntities(attrValue)
       });
       pos = attrEndIndex + 1;
       skipWs();
     }

     return {
       name: name,
       attributes: attributes,
       parsed: pos - start
     };
   }
 }, {
   key: "_parseProcessingInstruction",
   value: function _parseProcessingInstruction(s, start) {
     var pos = start,
         name,
         value;

     function skipWs() {
       while (pos < s.length && isWhitespace(s, pos)) {
         ++pos;
       }
     }

     while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== '>' && s[pos] !== '/') {
       ++pos;
     }

     name = s.substring(start, pos);
     skipWs();
     var attrStart = pos;

     while (pos < s.length && (s[pos] !== '?' || s[pos + 1] !== '>')) {
       ++pos;
     }

     value = s.substring(attrStart, pos);
     return {
       name: name,
       value: value,
       parsed: pos - start
     };
   }
 }, {
   key: "parseXml",
   value: function parseXml(s) {
     var i = 0;

     while (i < s.length) {
       var ch = s[i];
       var j = i;

       if (ch === '<') {
         ++j;
         var ch2 = s[j];
         var q = void 0;

         switch (ch2) {
           case '/':
             ++j;
             q = s.indexOf('>', j);

             if (q < 0) {
               this.onError(XMLParserErrorCode.UnterminatedElement);
               return;
             }

             this.onEndElement(s.substring(j, q));
             j = q + 1;
             break;

           case '?':
             ++j;

             var pi = this._parseProcessingInstruction(s, j);

             if (s.substring(j + pi.parsed, j + pi.parsed + 2) !== '?>') {
               this.onError(XMLParserErrorCode.UnterminatedXmlDeclaration);
               return;
             }

             this.onPi(pi.name, pi.value);
             j += pi.parsed + 2;
             break;

           case '!':
             if (s.substring(j + 1, j + 3) === '--') {
               q = s.indexOf('-->', j + 3);

               if (q < 0) {
                 this.onError(XMLParserErrorCode.UnterminatedComment);
                 return;
               }

               this.onComment(s.substring(j + 3, q));
               j = q + 3;
             } else if (s.substring(j + 1, j + 8) === '[CDATA[') {
               q = s.indexOf(']]>', j + 8);

               if (q < 0) {
                 this.onError(XMLParserErrorCode.UnterminatedCdat);
                 return;
               }

               this.onCdata(s.substring(j + 8, q));
               j = q + 3;
             } else if (s.substring(j + 1, j + 8) === 'DOCTYPE') {
               var q2 = s.indexOf('[', j + 8);
               var complexDoctype = false;
               q = s.indexOf('>', j + 8);

               if (q < 0) {
                 this.onError(XMLParserErrorCode.UnterminatedDoctypeDeclaration);
                 return;
               }

               if (q2 > 0 && q > q2) {
                 q = s.indexOf(']>', j + 8);

                 if (q < 0) {
                   this.onError(XMLParserErrorCode.UnterminatedDoctypeDeclaration);
                   return;
                 }

                 complexDoctype = true;
               }

               var doctypeContent = s.substring(j + 8, q + (complexDoctype ? 1 : 0));
               this.onDoctype(doctypeContent);
               j = q + (complexDoctype ? 2 : 1);
             } else {
               this.onError(XMLParserErrorCode.MalformedElement);
               return;
             }

             break;

           default:
             var content = this._parseContent(s, j);

             if (content === null) {
               this.onError(XMLParserErrorCode.MalformedElement);
               return;
             }

             var isClosed = false;

             if (s.substring(j + content.parsed, j + content.parsed + 2) === '/>') {
               isClosed = true;
             } else if (s.substring(j + content.parsed, j + content.parsed + 1) !== '>') {
               this.onError(XMLParserErrorCode.UnterminatedElement);
               return;
             }

             this.onBeginElement(content.name, content.attributes, isClosed);
             j += content.parsed + (isClosed ? 2 : 1);
             break;
         }
       } else {
         while (j < s.length && s[j] !== '<') {
           j++;
         }

         var text = s.substring(i, j);
         this.onText(this._resolveEntities(text));
       }

       i = j;
     }
   }
 }, {
   key: "onResolveEntity",
   value: function onResolveEntity(name) {
     return "&".concat(name, ";");
   }
 }, {
   key: "onPi",
   value: function onPi(name, value) {}
 }, {
   key: "onComment",
   value: function onComment(text) {}
 }, {
   key: "onCdata",
   value: function onCdata(text) {}
 }, {
   key: "onDoctype",
   value: function onDoctype(doctypeContent) {}
 }, {
   key: "onText",
   value: function onText(text) {}
 }, {
   key: "onBeginElement",
   value: function onBeginElement(name, attributes, isEmpty) {}
 }, {
   key: "onEndElement",
   value: function onEndElement(name) {}
 }, {
   key: "onError",
   value: function onError(code) {}
 }]);

 return XMLParserBase;
}();

var SimpleDOMNode =
/*#__PURE__*/
function () {
 function SimpleDOMNode(nodeName, nodeValue) {
   _classCallCheck(this, SimpleDOMNode);

   this.nodeName = nodeName;
   this.nodeValue = nodeValue;
   Object.defineProperty(this, 'parentNode', {
     value: null,
     writable: true
   });
 }

 _createClass(SimpleDOMNode, [{
   key: "hasChildNodes",
   value: function hasChildNodes() {
     return this.childNodes && this.childNodes.length > 0;
   }
 }, {
   key: "firstChild",
   get: function get() {
     return this.childNodes && this.childNodes[0];
   }
 }, {
   key: "nextSibling",
   get: function get() {
     var childNodes = this.parentNode.childNodes;

     if (!childNodes) {
       return undefined;
     }

     var index = childNodes.indexOf(this);

     if (index === -1) {
       return undefined;
     }

     return childNodes[index + 1];
   }
 }, {
   key: "textContent",
   get: function get() {
     if (!this.childNodes) {
       return this.nodeValue || '';
     }

     return this.childNodes.map(function (child) {
       return child.textContent;
     }).join('');
   }
 }]);

 return SimpleDOMNode;
}();

var SimpleXMLParser =
/*#__PURE__*/
function (_XMLParserBase) {
 _inherits(SimpleXMLParser, _XMLParserBase);

 function SimpleXMLParser() {
   var _this2;

   _classCallCheck(this, SimpleXMLParser);

   _this2 = _possibleConstructorReturn(this, _getPrototypeOf(SimpleXMLParser).call(this));
   _this2._currentFragment = null;
   _this2._stack = null;
   _this2._errorCode = XMLParserErrorCode.NoError;
   return _this2;
 }

 _createClass(SimpleXMLParser, [{
   key: "parseFromString",
   value: function parseFromString(data) {
     this._currentFragment = [];
     this._stack = [];
     this._errorCode = XMLParserErrorCode.NoError;
     this.parseXml(data);

     if (this._errorCode !== XMLParserErrorCode.NoError) {
       return undefined;
     }

     var _this$_currentFragmen = _slicedToArray(this._currentFragment, 1),
         documentElement = _this$_currentFragmen[0];

     if (!documentElement) {
       return undefined;
     }

     return {
       documentElement: documentElement
     };
   }
 }, {
   key: "onResolveEntity",
   value: function onResolveEntity(name) {
     switch (name) {
       case 'apos':
         return '\'';
     }

     return _get(_getPrototypeOf(SimpleXMLParser.prototype), "onResolveEntity", this).call(this, name);
   }
 }, {
   key: "onText",
   value: function onText(text) {
     if (isWhitespaceString(text)) {
       return;
     }

     var node = new SimpleDOMNode('#text', text);

     this._currentFragment.push(node);
   }
 }, {
   key: "onCdata",
   value: function onCdata(text) {
     var node = new SimpleDOMNode('#text', text);

     this._currentFragment.push(node);
   }
 }, {
   key: "onBeginElement",
   value: function onBeginElement(name, attributes, isEmpty) {
     var node = new SimpleDOMNode(name);
     node.childNodes = [];

     this._currentFragment.push(node);

     if (isEmpty) {
       return;
     }

     this._stack.push(this._currentFragment);

     this._currentFragment = node.childNodes;
   }
 }, {
   key: "onEndElement",
   value: function onEndElement(name) {
     this._currentFragment = this._stack.pop() || [];
     var lastElement = this._currentFragment[this._currentFragment.length - 1];

     if (!lastElement) {
       return;
     }

     for (var i = 0, ii = lastElement.childNodes.length; i < ii; i++) {
       lastElement.childNodes[i].parentNode = lastElement;
     }
   }
 }, {
   key: "onError",
   value: function onError(code) {
     this._errorCode = code;
   }
 }]);

 return SimpleXMLParser;
}(XMLParserBase);

exports.SimpleXMLParser = SimpleXMLParser;

/***/ }),
/* 160 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.PDFDataTransportStream = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var PDFDataTransportStream =
/*#__PURE__*/
function () {
 function PDFDataTransportStream(params, pdfDataRangeTransport) {
   var _this = this;

   _classCallCheck(this, PDFDataTransportStream);

   (0, _util.assert)(pdfDataRangeTransport);
   this._queuedChunks = [];
   this._progressiveDone = params.progressiveDone || false;
   var initialData = params.initialData;

   if (initialData && initialData.length > 0) {
     var buffer = new Uint8Array(initialData).buffer;

     this._queuedChunks.push(buffer);
   }

   this._pdfDataRangeTransport = pdfDataRangeTransport;
   this._isStreamingSupported = !params.disableStream;
   this._isRangeSupported = !params.disableRange;
   this._contentLength = params.length;
   this._fullRequestReader = null;
   this._rangeReaders = [];

   this._pdfDataRangeTransport.addRangeListener(function (begin, chunk) {
     _this._onReceiveData({
       begin: begin,
       chunk: chunk
     });
   });

   this._pdfDataRangeTransport.addProgressListener(function (loaded, total) {
     _this._onProgress({
       loaded: loaded,
       total: total
     });
   });

   this._pdfDataRangeTransport.addProgressiveReadListener(function (chunk) {
     _this._onReceiveData({
       chunk: chunk
     });
   });

   this._pdfDataRangeTransport.addProgressiveDoneListener(function () {
     _this._onProgressiveDone();
   });

   this._pdfDataRangeTransport.transportReady();
 }

 _createClass(PDFDataTransportStream, [{
   key: "_onReceiveData",
   value: function _onReceiveData(args) {
     var buffer = new Uint8Array(args.chunk).buffer;

     if (args.begin === undefined) {
       if (this._fullRequestReader) {
         this._fullRequestReader._enqueue(buffer);
       } else {
         this._queuedChunks.push(buffer);
       }
     } else {
       var found = this._rangeReaders.some(function (rangeReader) {
         if (rangeReader._begin !== args.begin) {
           return false;
         }

         rangeReader._enqueue(buffer);

         return true;
       });

       (0, _util.assert)(found);
     }
   }
 }, {
   key: "_onProgress",
   value: function _onProgress(evt) {
     if (evt.total === undefined) {
       var firstReader = this._rangeReaders[0];

       if (firstReader && firstReader.onProgress) {
         firstReader.onProgress({
           loaded: evt.loaded
         });
       }
     } else {
       var fullReader = this._fullRequestReader;

       if (fullReader && fullReader.onProgress) {
         fullReader.onProgress({
           loaded: evt.loaded,
           total: evt.total
         });
       }
     }
   }
 }, {
   key: "_onProgressiveDone",
   value: function _onProgressiveDone() {
     if (this._fullRequestReader) {
       this._fullRequestReader.progressiveDone();
     }

     this._progressiveDone = true;
   }
 }, {
   key: "_removeRangeReader",
   value: function _removeRangeReader(reader) {
     var i = this._rangeReaders.indexOf(reader);

     if (i >= 0) {
       this._rangeReaders.splice(i, 1);
     }
   }
 }, {
   key: "getFullReader",
   value: function getFullReader() {
     (0, _util.assert)(!this._fullRequestReader);
     var queuedChunks = this._queuedChunks;
     this._queuedChunks = null;
     return new PDFDataTransportStreamReader(this, queuedChunks, this._progressiveDone);
   }
 }, {
   key: "getRangeReader",
   value: function getRangeReader(begin, end) {
     if (end <= this._progressiveDataLength) {
       return null;
     }

     var reader = new PDFDataTransportStreamRangeReader(this, begin, end);

     this._pdfDataRangeTransport.requestDataRange(begin, end);

     this._rangeReaders.push(reader);

     return reader;
   }
 }, {
   key: "cancelAllRequests",
   value: function cancelAllRequests(reason) {
     if (this._fullRequestReader) {
       this._fullRequestReader.cancel(reason);
     }

     var readers = this._rangeReaders.slice(0);

     readers.forEach(function (rangeReader) {
       rangeReader.cancel(reason);
     });

     this._pdfDataRangeTransport.abort();
   }
 }, {
   key: "_progressiveDataLength",
   get: function get() {
     return this._fullRequestReader ? this._fullRequestReader._loaded : 0;
   }
 }]);

 return PDFDataTransportStream;
}();

exports.PDFDataTransportStream = PDFDataTransportStream;

var PDFDataTransportStreamReader =
/*#__PURE__*/
function () {
 function PDFDataTransportStreamReader(stream, queuedChunks) {
   var progressiveDone = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

   _classCallCheck(this, PDFDataTransportStreamReader);

   this._stream = stream;
   this._done = progressiveDone || false;
   this._filename = null;
   this._queuedChunks = queuedChunks || [];
   this._loaded = 0;
   var _iteratorNormalCompletion = true;
   var _didIteratorError = false;
   var _iteratorError = undefined;

   try {
     for (var _iterator = this._queuedChunks[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
       var chunk = _step.value;
       this._loaded += chunk.byteLength;
     }
   } catch (err) {
     _didIteratorError = true;
     _iteratorError = err;
   } finally {
     try {
       if (!_iteratorNormalCompletion && _iterator["return"] != null) {
         _iterator["return"]();
       }
     } finally {
       if (_didIteratorError) {
         throw _iteratorError;
       }
     }
   }

   this._requests = [];
   this._headersReady = Promise.resolve();
   stream._fullRequestReader = this;
   this.onProgress = null;
 }

 _createClass(PDFDataTransportStreamReader, [{
   key: "_enqueue",
   value: function _enqueue(chunk) {
     if (this._done) {
       return;
     }

     if (this._requests.length > 0) {
       var requestCapability = this._requests.shift();

       requestCapability.resolve({
         value: chunk,
         done: false
       });
     } else {
       this._queuedChunks.push(chunk);
     }

     this._loaded += chunk.byteLength;
   }
 }, {
   key: "read",
   value: function () {
     var _read = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee() {
       var chunk, requestCapability;
       return _regenerator["default"].wrap(function _callee$(_context) {
         while (1) {
           switch (_context.prev = _context.next) {
             case 0:
               if (!(this._queuedChunks.length > 0)) {
                 _context.next = 3;
                 break;
               }

               chunk = this._queuedChunks.shift();
               return _context.abrupt("return", {
                 value: chunk,
                 done: false
               });

             case 3:
               if (!this._done) {
                 _context.next = 5;
                 break;
               }

               return _context.abrupt("return", {
                 value: undefined,
                 done: true
               });

             case 5:
               requestCapability = (0, _util.createPromiseCapability)();

               this._requests.push(requestCapability);

               return _context.abrupt("return", requestCapability.promise);

             case 8:
             case "end":
               return _context.stop();
           }
         }
       }, _callee, this);
     }));

     function read() {
       return _read.apply(this, arguments);
     }

     return read;
   }()
 }, {
   key: "cancel",
   value: function cancel(reason) {
     this._done = true;

     this._requests.forEach(function (requestCapability) {
       requestCapability.resolve({
         value: undefined,
         done: true
       });
     });

     this._requests = [];
   }
 }, {
   key: "progressiveDone",
   value: function progressiveDone() {
     if (this._done) {
       return;
     }

     this._done = true;
   }
 }, {
   key: "headersReady",
   get: function get() {
     return this._headersReady;
   }
 }, {
   key: "filename",
   get: function get() {
     return this._filename;
   }
 }, {
   key: "isRangeSupported",
   get: function get() {
     return this._stream._isRangeSupported;
   }
 }, {
   key: "isStreamingSupported",
   get: function get() {
     return this._stream._isStreamingSupported;
   }
 }, {
   key: "contentLength",
   get: function get() {
     return this._stream._contentLength;
   }
 }]);

 return PDFDataTransportStreamReader;
}();

var PDFDataTransportStreamRangeReader =
/*#__PURE__*/
function () {
 function PDFDataTransportStreamRangeReader(stream, begin, end) {
   _classCallCheck(this, PDFDataTransportStreamRangeReader);

   this._stream = stream;
   this._begin = begin;
   this._end = end;
   this._queuedChunk = null;
   this._requests = [];
   this._done = false;
   this.onProgress = null;
 }

 _createClass(PDFDataTransportStreamRangeReader, [{
   key: "_enqueue",
   value: function _enqueue(chunk) {
     if (this._done) {
       return;
     }

     if (this._requests.length === 0) {
       this._queuedChunk = chunk;
     } else {
       var requestsCapability = this._requests.shift();

       requestsCapability.resolve({
         value: chunk,
         done: false
       });

       this._requests.forEach(function (requestCapability) {
         requestCapability.resolve({
           value: undefined,
           done: true
         });
       });

       this._requests = [];
     }

     this._done = true;

     this._stream._removeRangeReader(this);
   }
 }, {
   key: "read",
   value: function () {
     var _read2 = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee2() {
       var chunk, requestCapability;
       return _regenerator["default"].wrap(function _callee2$(_context2) {
         while (1) {
           switch (_context2.prev = _context2.next) {
             case 0:
               if (!this._queuedChunk) {
                 _context2.next = 4;
                 break;
               }

               chunk = this._queuedChunk;
               this._queuedChunk = null;
               return _context2.abrupt("return", {
                 value: chunk,
                 done: false
               });

             case 4:
               if (!this._done) {
                 _context2.next = 6;
                 break;
               }

               return _context2.abrupt("return", {
                 value: undefined,
                 done: true
               });

             case 6:
               requestCapability = (0, _util.createPromiseCapability)();

               this._requests.push(requestCapability);

               return _context2.abrupt("return", requestCapability.promise);

             case 9:
             case "end":
               return _context2.stop();
           }
         }
       }, _callee2, this);
     }));

     function read() {
       return _read2.apply(this, arguments);
     }

     return read;
   }()
 }, {
   key: "cancel",
   value: function cancel(reason) {
     this._done = true;

     this._requests.forEach(function (requestCapability) {
       requestCapability.resolve({
         value: undefined,
         done: true
       });
     });

     this._requests = [];

     this._stream._removeRangeReader(this);
   }
 }, {
   key: "isStreamingSupported",
   get: function get() {
     return false;
   }
 }]);

 return PDFDataTransportStreamRangeReader;
}();

/***/ }),
/* 161 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.WebGLContext = void 0;

var _util = __w_pdfjs_require__(1);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var WebGLContext =
/*#__PURE__*/
function () {
 function WebGLContext(_ref) {
   var _ref$enable = _ref.enable,
       enable = _ref$enable === void 0 ? false : _ref$enable;

   _classCallCheck(this, WebGLContext);

   this._enabled = enable === true;
 }

 _createClass(WebGLContext, [{
   key: "composeSMask",
   value: function composeSMask(_ref2) {
     var layer = _ref2.layer,
         mask = _ref2.mask,
         properties = _ref2.properties;
     return WebGLUtils.composeSMask(layer, mask, properties);
   }
 }, {
   key: "drawFigures",
   value: function drawFigures(_ref3) {
     var width = _ref3.width,
         height = _ref3.height,
         backgroundColor = _ref3.backgroundColor,
         figures = _ref3.figures,
         context = _ref3.context;
     return WebGLUtils.drawFigures(width, height, backgroundColor, figures, context);
   }
 }, {
   key: "clear",
   value: function clear() {
     WebGLUtils.cleanup();
   }
 }, {
   key: "isEnabled",
   get: function get() {
     var enabled = this._enabled;

     if (enabled) {
       enabled = WebGLUtils.tryInitGL();
     }

     return (0, _util.shadow)(this, 'isEnabled', enabled);
   }
 }]);

 return WebGLContext;
}();

exports.WebGLContext = WebGLContext;

var WebGLUtils = function WebGLUtilsClosure() {
 function loadShader(gl, code, shaderType) {
   var shader = gl.createShader(shaderType);
   gl.shaderSource(shader, code);
   gl.compileShader(shader);
   var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);

   if (!compiled) {
     var errorMsg = gl.getShaderInfoLog(shader);
     throw new Error('Error during shader compilation: ' + errorMsg);
   }

   return shader;
 }

 function createVertexShader(gl, code) {
   return loadShader(gl, code, gl.VERTEX_SHADER);
 }

 function createFragmentShader(gl, code) {
   return loadShader(gl, code, gl.FRAGMENT_SHADER);
 }

 function createProgram(gl, shaders) {
   var program = gl.createProgram();

   for (var i = 0, ii = shaders.length; i < ii; ++i) {
     gl.attachShader(program, shaders[i]);
   }

   gl.linkProgram(program);
   var linked = gl.getProgramParameter(program, gl.LINK_STATUS);

   if (!linked) {
     var errorMsg = gl.getProgramInfoLog(program);
     throw new Error('Error during program linking: ' + errorMsg);
   }

   return program;
 }

 function createTexture(gl, image, textureId) {
   gl.activeTexture(textureId);
   var texture = gl.createTexture();
   gl.bindTexture(gl.TEXTURE_2D, texture);
   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
   gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image);
   return texture;
 }

 var currentGL, currentCanvas;

 function generateGL() {
   if (currentGL) {
     return;
   }

   currentCanvas = document.createElement('canvas');
   currentGL = currentCanvas.getContext('webgl', {
     premultipliedalpha: false
   });
 }

 var smaskVertexShaderCode = '\
 attribute vec2 a_position;                                    \
 attribute vec2 a_texCoord;                                    \
                                                               \
 uniform vec2 u_resolution;                                    \
                                                               \
 varying vec2 v_texCoord;                                      \
                                                               \
 void main() {                                                 \
   vec2 clipSpace = (a_position / u_resolution) * 2.0 - 1.0;   \
   gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);          \
                                                               \
   v_texCoord = a_texCoord;                                    \
 }                                                             ';
 var smaskFragmentShaderCode = '\
 precision mediump float;                                      \
                                                               \
 uniform vec4 u_backdrop;                                      \
 uniform int u_subtype;                                        \
 uniform sampler2D u_image;                                    \
 uniform sampler2D u_mask;                                     \
                                                               \
 varying vec2 v_texCoord;                                      \
                                                               \
 void main() {                                                 \
   vec4 imageColor = texture2D(u_image, v_texCoord);           \
   vec4 maskColor = texture2D(u_mask, v_texCoord);             \
   if (u_backdrop.a > 0.0) {                                   \
     maskColor.rgb = maskColor.rgb * maskColor.a +             \
                     u_backdrop.rgb * (1.0 - maskColor.a);     \
   }                                                           \
   float lum;                                                  \
   if (u_subtype == 0) {                                       \
     lum = maskColor.a;                                        \
   } else {                                                    \
     lum = maskColor.r * 0.3 + maskColor.g * 0.59 +            \
           maskColor.b * 0.11;                                 \
   }                                                           \
   imageColor.a *= lum;                                        \
   imageColor.rgb *= imageColor.a;                             \
   gl_FragColor = imageColor;                                  \
 }                                                             ';
 var smaskCache = null;

 function initSmaskGL() {
   var canvas, gl;
   generateGL();
   canvas = currentCanvas;
   currentCanvas = null;
   gl = currentGL;
   currentGL = null;
   var vertexShader = createVertexShader(gl, smaskVertexShaderCode);
   var fragmentShader = createFragmentShader(gl, smaskFragmentShaderCode);
   var program = createProgram(gl, [vertexShader, fragmentShader]);
   gl.useProgram(program);
   var cache = {};
   cache.gl = gl;
   cache.canvas = canvas;
   cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
   cache.positionLocation = gl.getAttribLocation(program, 'a_position');
   cache.backdropLocation = gl.getUniformLocation(program, 'u_backdrop');
   cache.subtypeLocation = gl.getUniformLocation(program, 'u_subtype');
   var texCoordLocation = gl.getAttribLocation(program, 'a_texCoord');
   var texLayerLocation = gl.getUniformLocation(program, 'u_image');
   var texMaskLocation = gl.getUniformLocation(program, 'u_mask');
   var texCoordBuffer = gl.createBuffer();
   gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer);
   gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0]), gl.STATIC_DRAW);
   gl.enableVertexAttribArray(texCoordLocation);
   gl.vertexAttribPointer(texCoordLocation, 2, gl.FLOAT, false, 0, 0);
   gl.uniform1i(texLayerLocation, 0);
   gl.uniform1i(texMaskLocation, 1);
   smaskCache = cache;
 }

 function composeSMask(layer, mask, properties) {
   var width = layer.width,
       height = layer.height;

   if (!smaskCache) {
     initSmaskGL();
   }

   var cache = smaskCache,
       canvas = cache.canvas,
       gl = cache.gl;
   canvas.width = width;
   canvas.height = height;
   gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
   gl.uniform2f(cache.resolutionLocation, width, height);

   if (properties.backdrop) {
     gl.uniform4f(cache.resolutionLocation, properties.backdrop[0], properties.backdrop[1], properties.backdrop[2], 1);
   } else {
     gl.uniform4f(cache.resolutionLocation, 0, 0, 0, 0);
   }

   gl.uniform1i(cache.subtypeLocation, properties.subtype === 'Luminosity' ? 1 : 0);
   var texture = createTexture(gl, layer, gl.TEXTURE0);
   var maskTexture = createTexture(gl, mask, gl.TEXTURE1);
   var buffer = gl.createBuffer();
   gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
   gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0, 0, width, 0, 0, height, 0, height, width, 0, width, height]), gl.STATIC_DRAW);
   gl.enableVertexAttribArray(cache.positionLocation);
   gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
   gl.clearColor(0, 0, 0, 0);
   gl.enable(gl.BLEND);
   gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
   gl.clear(gl.COLOR_BUFFER_BIT);
   gl.drawArrays(gl.TRIANGLES, 0, 6);
   gl.flush();
   gl.deleteTexture(texture);
   gl.deleteTexture(maskTexture);
   gl.deleteBuffer(buffer);
   return canvas;
 }

 var figuresVertexShaderCode = '\
 attribute vec2 a_position;                                    \
 attribute vec3 a_color;                                       \
                                                               \
 uniform vec2 u_resolution;                                    \
 uniform vec2 u_scale;                                         \
 uniform vec2 u_offset;                                        \
                                                               \
 varying vec4 v_color;                                         \
                                                               \
 void main() {                                                 \
   vec2 position = (a_position + u_offset) * u_scale;          \
   vec2 clipSpace = (position / u_resolution) * 2.0 - 1.0;     \
   gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);          \
                                                               \
   v_color = vec4(a_color / 255.0, 1.0);                       \
 }                                                             ';
 var figuresFragmentShaderCode = '\
 precision mediump float;                                      \
                                                               \
 varying vec4 v_color;                                         \
                                                               \
 void main() {                                                 \
   gl_FragColor = v_color;                                     \
 }                                                             ';
 var figuresCache = null;

 function initFiguresGL() {
   var canvas, gl;
   generateGL();
   canvas = currentCanvas;
   currentCanvas = null;
   gl = currentGL;
   currentGL = null;
   var vertexShader = createVertexShader(gl, figuresVertexShaderCode);
   var fragmentShader = createFragmentShader(gl, figuresFragmentShaderCode);
   var program = createProgram(gl, [vertexShader, fragmentShader]);
   gl.useProgram(program);
   var cache = {};
   cache.gl = gl;
   cache.canvas = canvas;
   cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
   cache.scaleLocation = gl.getUniformLocation(program, 'u_scale');
   cache.offsetLocation = gl.getUniformLocation(program, 'u_offset');
   cache.positionLocation = gl.getAttribLocation(program, 'a_position');
   cache.colorLocation = gl.getAttribLocation(program, 'a_color');
   figuresCache = cache;
 }

 function drawFigures(width, height, backgroundColor, figures, context) {
   if (!figuresCache) {
     initFiguresGL();
   }

   var cache = figuresCache,
       canvas = cache.canvas,
       gl = cache.gl;
   canvas.width = width;
   canvas.height = height;
   gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
   gl.uniform2f(cache.resolutionLocation, width, height);
   var count = 0;
   var i, ii, rows;

   for (i = 0, ii = figures.length; i < ii; i++) {
     switch (figures[i].type) {
       case 'lattice':
         rows = figures[i].coords.length / figures[i].verticesPerRow | 0;
         count += (rows - 1) * (figures[i].verticesPerRow - 1) * 6;
         break;

       case 'triangles':
         count += figures[i].coords.length;
         break;
     }
   }

   var coords = new Float32Array(count * 2);
   var colors = new Uint8Array(count * 3);
   var coordsMap = context.coords,
       colorsMap = context.colors;
   var pIndex = 0,
       cIndex = 0;

   for (i = 0, ii = figures.length; i < ii; i++) {
     var figure = figures[i],
         ps = figure.coords,
         cs = figure.colors;

     switch (figure.type) {
       case 'lattice':
         var cols = figure.verticesPerRow;
         rows = ps.length / cols | 0;

         for (var row = 1; row < rows; row++) {
           var offset = row * cols + 1;

           for (var col = 1; col < cols; col++, offset++) {
             coords[pIndex] = coordsMap[ps[offset - cols - 1]];
             coords[pIndex + 1] = coordsMap[ps[offset - cols - 1] + 1];
             coords[pIndex + 2] = coordsMap[ps[offset - cols]];
             coords[pIndex + 3] = coordsMap[ps[offset - cols] + 1];
             coords[pIndex + 4] = coordsMap[ps[offset - 1]];
             coords[pIndex + 5] = coordsMap[ps[offset - 1] + 1];
             colors[cIndex] = colorsMap[cs[offset - cols - 1]];
             colors[cIndex + 1] = colorsMap[cs[offset - cols - 1] + 1];
             colors[cIndex + 2] = colorsMap[cs[offset - cols - 1] + 2];
             colors[cIndex + 3] = colorsMap[cs[offset - cols]];
             colors[cIndex + 4] = colorsMap[cs[offset - cols] + 1];
             colors[cIndex + 5] = colorsMap[cs[offset - cols] + 2];
             colors[cIndex + 6] = colorsMap[cs[offset - 1]];
             colors[cIndex + 7] = colorsMap[cs[offset - 1] + 1];
             colors[cIndex + 8] = colorsMap[cs[offset - 1] + 2];
             coords[pIndex + 6] = coords[pIndex + 2];
             coords[pIndex + 7] = coords[pIndex + 3];
             coords[pIndex + 8] = coords[pIndex + 4];
             coords[pIndex + 9] = coords[pIndex + 5];
             coords[pIndex + 10] = coordsMap[ps[offset]];
             coords[pIndex + 11] = coordsMap[ps[offset] + 1];
             colors[cIndex + 9] = colors[cIndex + 3];
             colors[cIndex + 10] = colors[cIndex + 4];
             colors[cIndex + 11] = colors[cIndex + 5];
             colors[cIndex + 12] = colors[cIndex + 6];
             colors[cIndex + 13] = colors[cIndex + 7];
             colors[cIndex + 14] = colors[cIndex + 8];
             colors[cIndex + 15] = colorsMap[cs[offset]];
             colors[cIndex + 16] = colorsMap[cs[offset] + 1];
             colors[cIndex + 17] = colorsMap[cs[offset] + 2];
             pIndex += 12;
             cIndex += 18;
           }
         }

         break;

       case 'triangles':
         for (var j = 0, jj = ps.length; j < jj; j++) {
           coords[pIndex] = coordsMap[ps[j]];
           coords[pIndex + 1] = coordsMap[ps[j] + 1];
           colors[cIndex] = colorsMap[cs[j]];
           colors[cIndex + 1] = colorsMap[cs[j] + 1];
           colors[cIndex + 2] = colorsMap[cs[j] + 2];
           pIndex += 2;
           cIndex += 3;
         }

         break;
     }
   }

   if (backgroundColor) {
     gl.clearColor(backgroundColor[0] / 255, backgroundColor[1] / 255, backgroundColor[2] / 255, 1.0);
   } else {
     gl.clearColor(0, 0, 0, 0);
   }

   gl.clear(gl.COLOR_BUFFER_BIT);
   var coordsBuffer = gl.createBuffer();
   gl.bindBuffer(gl.ARRAY_BUFFER, coordsBuffer);
   gl.bufferData(gl.ARRAY_BUFFER, coords, gl.STATIC_DRAW);
   gl.enableVertexAttribArray(cache.positionLocation);
   gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
   var colorsBuffer = gl.createBuffer();
   gl.bindBuffer(gl.ARRAY_BUFFER, colorsBuffer);
   gl.bufferData(gl.ARRAY_BUFFER, colors, gl.STATIC_DRAW);
   gl.enableVertexAttribArray(cache.colorLocation);
   gl.vertexAttribPointer(cache.colorLocation, 3, gl.UNSIGNED_BYTE, false, 0, 0);
   gl.uniform2f(cache.scaleLocation, context.scaleX, context.scaleY);
   gl.uniform2f(cache.offsetLocation, context.offsetX, context.offsetY);
   gl.drawArrays(gl.TRIANGLES, 0, count);
   gl.flush();
   gl.deleteBuffer(coordsBuffer);
   gl.deleteBuffer(colorsBuffer);
   return canvas;
 }

 return {
   tryInitGL: function tryInitGL() {
     try {
       generateGL();
       return !!currentGL;
     } catch (ex) {}

     return false;
   },
   composeSMask: composeSMask,
   drawFigures: drawFigures,
   cleanup: function cleanup() {
     if (smaskCache && smaskCache.canvas) {
       smaskCache.canvas.width = 0;
       smaskCache.canvas.height = 0;
     }

     if (figuresCache && figuresCache.canvas) {
       figuresCache.canvas.width = 0;
       figuresCache.canvas.height = 0;
     }

     smaskCache = null;
     figuresCache = null;
   }
 };
}();

/***/ }),
/* 162 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.renderTextLayer = void 0;

var _util = __w_pdfjs_require__(1);

var _global_scope = _interopRequireDefault(__w_pdfjs_require__(3));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

var renderTextLayer = function renderTextLayerClosure() {
 var MAX_TEXT_DIVS_TO_RENDER = 100000;
 var NonWhitespaceRegexp = /\S/;

 function isAllWhitespace(str) {
   return !NonWhitespaceRegexp.test(str);
 }

 var styleBuf = ['left: ', 0, 'px; top: ', 0, 'px; font-size: ', 0, 'px; font-family: ', '', ';'];

 function appendText(task, geom, styles) {
   var textDiv = document.createElement('span');
   var textDivProperties = {
     style: null,
     angle: 0,
     canvasWidth: 0,
     isWhitespace: false,
     originalTransform: null,
     paddingBottom: 0,
     paddingLeft: 0,
     paddingRight: 0,
     paddingTop: 0,
     scale: 1
   };

   task._textDivs.push(textDiv);

   if (isAllWhitespace(geom.str)) {
     textDivProperties.isWhitespace = true;

     task._textDivProperties.set(textDiv, textDivProperties);

     return;
   }

   var tx = _util.Util.transform(task._viewport.transform, geom.transform);

   var angle = Math.atan2(tx[1], tx[0]);
   var style = styles[geom.fontName];

   if (style.vertical) {
     angle += Math.PI / 2;
   }

   var fontHeight = Math.sqrt(tx[2] * tx[2] + tx[3] * tx[3]);
   var fontAscent = fontHeight;

   if (style.ascent) {
     fontAscent = style.ascent * fontAscent;
   } else if (style.descent) {
     fontAscent = (1 + style.descent) * fontAscent;
   }

   var left;
   var top;

   if (angle === 0) {
     left = tx[4];
     top = tx[5] - fontAscent;
   } else {
     left = tx[4] + fontAscent * Math.sin(angle);
     top = tx[5] - fontAscent * Math.cos(angle);
   }

   styleBuf[1] = left;
   styleBuf[3] = top;
   styleBuf[5] = fontHeight;
   styleBuf[7] = style.fontFamily;
   textDivProperties.style = styleBuf.join('');
   textDiv.setAttribute('style', textDivProperties.style);
   textDiv.textContent = geom.str;

   if (task._fontInspectorEnabled) {
     textDiv.dataset.fontName = geom.fontName;
   }

   if (angle !== 0) {
     textDivProperties.angle = angle * (180 / Math.PI);
   }

   if (geom.str.length > 1) {
     if (style.vertical) {
       textDivProperties.canvasWidth = geom.height * task._viewport.scale;
     } else {
       textDivProperties.canvasWidth = geom.width * task._viewport.scale;
     }
   }

   task._textDivProperties.set(textDiv, textDivProperties);

   if (task._textContentStream) {
     task._layoutText(textDiv);
   }

   if (task._enhanceTextSelection) {
     var angleCos = 1,
         angleSin = 0;

     if (angle !== 0) {
       angleCos = Math.cos(angle);
       angleSin = Math.sin(angle);
     }

     var divWidth = (style.vertical ? geom.height : geom.width) * task._viewport.scale;
     var divHeight = fontHeight;
     var m, b;

     if (angle !== 0) {
       m = [angleCos, angleSin, -angleSin, angleCos, left, top];
       b = _util.Util.getAxialAlignedBoundingBox([0, 0, divWidth, divHeight], m);
     } else {
       b = [left, top, left + divWidth, top + divHeight];
     }

     task._bounds.push({
       left: b[0],
       top: b[1],
       right: b[2],
       bottom: b[3],
       div: textDiv,
       size: [divWidth, divHeight],
       m: m
     });
   }
 }

 function render(task) {
   if (task._canceled) {
     return;
   }

   var textDivs = task._textDivs;
   var capability = task._capability;
   var textDivsLength = textDivs.length;

   if (textDivsLength > MAX_TEXT_DIVS_TO_RENDER) {
     task._renderingDone = true;
     capability.resolve();
     return;
   }

   if (!task._textContentStream) {
     for (var i = 0; i < textDivsLength; i++) {
       task._layoutText(textDivs[i]);
     }
   }

   task._renderingDone = true;
   capability.resolve();
 }

 function expand(task) {
   var bounds = task._bounds;
   var viewport = task._viewport;
   var expanded = expandBounds(viewport.width, viewport.height, bounds);

   for (var i = 0; i < expanded.length; i++) {
     var div = bounds[i].div;

     var divProperties = task._textDivProperties.get(div);

     if (divProperties.angle === 0) {
       divProperties.paddingLeft = bounds[i].left - expanded[i].left;
       divProperties.paddingTop = bounds[i].top - expanded[i].top;
       divProperties.paddingRight = expanded[i].right - bounds[i].right;
       divProperties.paddingBottom = expanded[i].bottom - bounds[i].bottom;

       task._textDivProperties.set(div, divProperties);

       continue;
     }

     var e = expanded[i],
         b = bounds[i];
     var m = b.m,
         c = m[0],
         s = m[1];
     var points = [[0, 0], [0, b.size[1]], [b.size[0], 0], b.size];
     var ts = new Float64Array(64);
     points.forEach(function (p, i) {
       var t = _util.Util.applyTransform(p, m);

       ts[i + 0] = c && (e.left - t[0]) / c;
       ts[i + 4] = s && (e.top - t[1]) / s;
       ts[i + 8] = c && (e.right - t[0]) / c;
       ts[i + 12] = s && (e.bottom - t[1]) / s;
       ts[i + 16] = s && (e.left - t[0]) / -s;
       ts[i + 20] = c && (e.top - t[1]) / c;
       ts[i + 24] = s && (e.right - t[0]) / -s;
       ts[i + 28] = c && (e.bottom - t[1]) / c;
       ts[i + 32] = c && (e.left - t[0]) / -c;
       ts[i + 36] = s && (e.top - t[1]) / -s;
       ts[i + 40] = c && (e.right - t[0]) / -c;
       ts[i + 44] = s && (e.bottom - t[1]) / -s;
       ts[i + 48] = s && (e.left - t[0]) / s;
       ts[i + 52] = c && (e.top - t[1]) / -c;
       ts[i + 56] = s && (e.right - t[0]) / s;
       ts[i + 60] = c && (e.bottom - t[1]) / -c;
     });

     var findPositiveMin = function findPositiveMin(ts, offset, count) {
       var result = 0;

       for (var i = 0; i < count; i++) {
         var t = ts[offset++];

         if (t > 0) {
           result = result ? Math.min(t, result) : t;
         }
       }

       return result;
     };

     var boxScale = 1 + Math.min(Math.abs(c), Math.abs(s));
     divProperties.paddingLeft = findPositiveMin(ts, 32, 16) / boxScale;
     divProperties.paddingTop = findPositiveMin(ts, 48, 16) / boxScale;
     divProperties.paddingRight = findPositiveMin(ts, 0, 16) / boxScale;
     divProperties.paddingBottom = findPositiveMin(ts, 16, 16) / boxScale;

     task._textDivProperties.set(div, divProperties);
   }
 }

 function expandBounds(width, height, boxes) {
   var bounds = boxes.map(function (box, i) {
     return {
       x1: box.left,
       y1: box.top,
       x2: box.right,
       y2: box.bottom,
       index: i,
       x1New: undefined,
       x2New: undefined
     };
   });
   expandBoundsLTR(width, bounds);
   var expanded = new Array(boxes.length);
   bounds.forEach(function (b) {
     var i = b.index;
     expanded[i] = {
       left: b.x1New,
       top: 0,
       right: b.x2New,
       bottom: 0
     };
   });
   boxes.map(function (box, i) {
     var e = expanded[i],
         b = bounds[i];
     b.x1 = box.top;
     b.y1 = width - e.right;
     b.x2 = box.bottom;
     b.y2 = width - e.left;
     b.index = i;
     b.x1New = undefined;
     b.x2New = undefined;
   });
   expandBoundsLTR(height, bounds);
   bounds.forEach(function (b) {
     var i = b.index;
     expanded[i].top = b.x1New;
     expanded[i].bottom = b.x2New;
   });
   return expanded;
 }

 function expandBoundsLTR(width, bounds) {
   bounds.sort(function (a, b) {
     return a.x1 - b.x1 || a.index - b.index;
   });
   var fakeBoundary = {
     x1: -Infinity,
     y1: -Infinity,
     x2: 0,
     y2: Infinity,
     index: -1,
     x1New: 0,
     x2New: 0
   };
   var horizon = [{
     start: -Infinity,
     end: Infinity,
     boundary: fakeBoundary
   }];
   bounds.forEach(function (boundary) {
     var i = 0;

     while (i < horizon.length && horizon[i].end <= boundary.y1) {
       i++;
     }

     var j = horizon.length - 1;

     while (j >= 0 && horizon[j].start >= boundary.y2) {
       j--;
     }

     var horizonPart, affectedBoundary;
     var q,
         k,
         maxXNew = -Infinity;

     for (q = i; q <= j; q++) {
       horizonPart = horizon[q];
       affectedBoundary = horizonPart.boundary;
       var xNew;

       if (affectedBoundary.x2 > boundary.x1) {
         xNew = affectedBoundary.index > boundary.index ? affectedBoundary.x1New : boundary.x1;
       } else if (affectedBoundary.x2New === undefined) {
         xNew = (affectedBoundary.x2 + boundary.x1) / 2;
       } else {
         xNew = affectedBoundary.x2New;
       }

       if (xNew > maxXNew) {
         maxXNew = xNew;
       }
     }

     boundary.x1New = maxXNew;

     for (q = i; q <= j; q++) {
       horizonPart = horizon[q];
       affectedBoundary = horizonPart.boundary;

       if (affectedBoundary.x2New === undefined) {
         if (affectedBoundary.x2 > boundary.x1) {
           if (affectedBoundary.index > boundary.index) {
             affectedBoundary.x2New = affectedBoundary.x2;
           }
         } else {
           affectedBoundary.x2New = maxXNew;
         }
       } else if (affectedBoundary.x2New > maxXNew) {
         affectedBoundary.x2New = Math.max(maxXNew, affectedBoundary.x2);
       }
     }

     var changedHorizon = [],
         lastBoundary = null;

     for (q = i; q <= j; q++) {
       horizonPart = horizon[q];
       affectedBoundary = horizonPart.boundary;
       var useBoundary = affectedBoundary.x2 > boundary.x2 ? affectedBoundary : boundary;

       if (lastBoundary === useBoundary) {
         changedHorizon[changedHorizon.length - 1].end = horizonPart.end;
       } else {
         changedHorizon.push({
           start: horizonPart.start,
           end: horizonPart.end,
           boundary: useBoundary
         });
         lastBoundary = useBoundary;
       }
     }

     if (horizon[i].start < boundary.y1) {
       changedHorizon[0].start = boundary.y1;
       changedHorizon.unshift({
         start: horizon[i].start,
         end: boundary.y1,
         boundary: horizon[i].boundary
       });
     }

     if (boundary.y2 < horizon[j].end) {
       changedHorizon[changedHorizon.length - 1].end = boundary.y2;
       changedHorizon.push({
         start: boundary.y2,
         end: horizon[j].end,
         boundary: horizon[j].boundary
       });
     }

     for (q = i; q <= j; q++) {
       horizonPart = horizon[q];
       affectedBoundary = horizonPart.boundary;

       if (affectedBoundary.x2New !== undefined) {
         continue;
       }

       var used = false;

       for (k = i - 1; !used && k >= 0 && horizon[k].start >= affectedBoundary.y1; k--) {
         used = horizon[k].boundary === affectedBoundary;
       }

       for (k = j + 1; !used && k < horizon.length && horizon[k].end <= affectedBoundary.y2; k++) {
         used = horizon[k].boundary === affectedBoundary;
       }

       for (k = 0; !used && k < changedHorizon.length; k++) {
         used = changedHorizon[k].boundary === affectedBoundary;
       }

       if (!used) {
         affectedBoundary.x2New = maxXNew;
       }
     }

     Array.prototype.splice.apply(horizon, [i, j - i + 1].concat(changedHorizon));
   });
   horizon.forEach(function (horizonPart) {
     var affectedBoundary = horizonPart.boundary;

     if (affectedBoundary.x2New === undefined) {
       affectedBoundary.x2New = Math.max(width, affectedBoundary.x2);
     }
   });
 }

 function TextLayerRenderTask(_ref) {
   var _this = this;

   var textContent = _ref.textContent,
       textContentStream = _ref.textContentStream,
       container = _ref.container,
       viewport = _ref.viewport,
       textDivs = _ref.textDivs,
       textContentItemsStr = _ref.textContentItemsStr,
       enhanceTextSelection = _ref.enhanceTextSelection;
   this._textContent = textContent;
   this._textContentStream = textContentStream;
   this._container = container;
   this._viewport = viewport;
   this._textDivs = textDivs || [];
   this._textContentItemsStr = textContentItemsStr || [];
   this._enhanceTextSelection = !!enhanceTextSelection;
   this._fontInspectorEnabled = !!(_global_scope["default"].FontInspector && _global_scope["default"].FontInspector.enabled);
   this._reader = null;
   this._layoutTextLastFontSize = null;
   this._layoutTextLastFontFamily = null;
   this._layoutTextCtx = null;
   this._textDivProperties = new WeakMap();
   this._renderingDone = false;
   this._canceled = false;
   this._capability = (0, _util.createPromiseCapability)();
   this._renderTimer = null;
   this._bounds = [];

   this._capability.promise["finally"](function () {
     if (_this._layoutTextCtx) {
       _this._layoutTextCtx.canvas.width = 0;
       _this._layoutTextCtx.canvas.height = 0;
       _this._layoutTextCtx = null;
     }
   });
 }

 TextLayerRenderTask.prototype = {
   get promise() {
     return this._capability.promise;
   },

   cancel: function TextLayer_cancel() {
     this._canceled = true;

     if (this._reader) {
       this._reader.cancel(new _util.AbortException('TextLayer task cancelled.'));

       this._reader = null;
     }

     if (this._renderTimer !== null) {
       clearTimeout(this._renderTimer);
       this._renderTimer = null;
     }

     this._capability.reject(new Error('TextLayer task cancelled.'));
   },
   _processItems: function _processItems(items, styleCache) {
     for (var i = 0, len = items.length; i < len; i++) {
       this._textContentItemsStr.push(items[i].str);

       appendText(this, items[i], styleCache);
     }
   },
   _layoutText: function _layoutText(textDiv) {
     var textLayerFrag = this._container;

     var textDivProperties = this._textDivProperties.get(textDiv);

     if (textDivProperties.isWhitespace) {
       return;
     }

     var fontSize = textDiv.style.fontSize;
     var fontFamily = textDiv.style.fontFamily;

     if (fontSize !== this._layoutTextLastFontSize || fontFamily !== this._layoutTextLastFontFamily) {
       this._layoutTextCtx.font = fontSize + ' ' + fontFamily;
       this._layoutTextLastFontSize = fontSize;
       this._layoutTextLastFontFamily = fontFamily;
     }

     var width = this._layoutTextCtx.measureText(textDiv.textContent).width;

     var transform = '';

     if (textDivProperties.canvasWidth !== 0 && width > 0) {
       textDivProperties.scale = textDivProperties.canvasWidth / width;
       transform = "scaleX(".concat(textDivProperties.scale, ")");
     }

     if (textDivProperties.angle !== 0) {
       transform = "rotate(".concat(textDivProperties.angle, "deg) ").concat(transform);
     }

     if (transform.length > 0) {
       textDivProperties.originalTransform = transform;
       textDiv.style.transform = transform;
     }

     this._textDivProperties.set(textDiv, textDivProperties);

     textLayerFrag.appendChild(textDiv);
   },
   _render: function TextLayer_render(timeout) {
     var _this2 = this;

     var capability = (0, _util.createPromiseCapability)();
     var styleCache = Object.create(null);
     var canvas = document.createElement('canvas');
     canvas.mozOpaque = true;
     this._layoutTextCtx = canvas.getContext('2d', {
       alpha: false
     });

     if (this._textContent) {
       var textItems = this._textContent.items;
       var textStyles = this._textContent.styles;

       this._processItems(textItems, textStyles);

       capability.resolve();
     } else if (this._textContentStream) {
       var pump = function pump() {
         _this2._reader.read().then(function (_ref2) {
           var value = _ref2.value,
               done = _ref2.done;

           if (done) {
             capability.resolve();
             return;
           }

           Object.assign(styleCache, value.styles);

           _this2._processItems(value.items, styleCache);

           pump();
         }, capability.reject);
       };

       this._reader = this._textContentStream.getReader();
       pump();
     } else {
       throw new Error('Neither "textContent" nor "textContentStream"' + ' parameters specified.');
     }

     capability.promise.then(function () {
       styleCache = null;

       if (!timeout) {
         render(_this2);
       } else {
         _this2._renderTimer = setTimeout(function () {
           render(_this2);
           _this2._renderTimer = null;
         }, timeout);
       }
     }, this._capability.reject);
   },
   expandTextDivs: function TextLayer_expandTextDivs(expandDivs) {
     if (!this._enhanceTextSelection || !this._renderingDone) {
       return;
     }

     if (this._bounds !== null) {
       expand(this);
       this._bounds = null;
     }

     for (var i = 0, ii = this._textDivs.length; i < ii; i++) {
       var div = this._textDivs[i];

       var divProperties = this._textDivProperties.get(div);

       if (divProperties.isWhitespace) {
         continue;
       }

       if (expandDivs) {
         var transform = '',
             padding = '';

         if (divProperties.scale !== 1) {
           transform = 'scaleX(' + divProperties.scale + ')';
         }

         if (divProperties.angle !== 0) {
           transform = 'rotate(' + divProperties.angle + 'deg) ' + transform;
         }

         if (divProperties.paddingLeft !== 0) {
           padding += ' padding-left: ' + divProperties.paddingLeft / divProperties.scale + 'px;';
           transform += ' translateX(' + -divProperties.paddingLeft / divProperties.scale + 'px)';
         }

         if (divProperties.paddingTop !== 0) {
           padding += ' padding-top: ' + divProperties.paddingTop + 'px;';
           transform += ' translateY(' + -divProperties.paddingTop + 'px)';
         }

         if (divProperties.paddingRight !== 0) {
           padding += ' padding-right: ' + divProperties.paddingRight / divProperties.scale + 'px;';
         }

         if (divProperties.paddingBottom !== 0) {
           padding += ' padding-bottom: ' + divProperties.paddingBottom + 'px;';
         }

         if (padding !== '') {
           div.setAttribute('style', divProperties.style + padding);
         }

         if (transform !== '') {
           div.style.transform = transform;
         }
       } else {
         div.style.padding = 0;
         div.style.transform = divProperties.originalTransform || '';
       }
     }
   }
 };

 function renderTextLayer(renderParameters) {
   var task = new TextLayerRenderTask({
     textContent: renderParameters.textContent,
     textContentStream: renderParameters.textContentStream,
     container: renderParameters.container,
     viewport: renderParameters.viewport,
     textDivs: renderParameters.textDivs,
     textContentItemsStr: renderParameters.textContentItemsStr,
     enhanceTextSelection: renderParameters.enhanceTextSelection
   });

   task._render(renderParameters.timeout);

   return task;
 }

 return renderTextLayer;
}();

exports.renderTextLayer = renderTextLayer;

/***/ }),
/* 163 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.AnnotationLayer = void 0;

var _display_utils = __w_pdfjs_require__(151);

var _util = __w_pdfjs_require__(1);

function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }

function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var AnnotationElementFactory =
/*#__PURE__*/
function () {
 function AnnotationElementFactory() {
   _classCallCheck(this, AnnotationElementFactory);
 }

 _createClass(AnnotationElementFactory, null, [{
   key: "create",
   value: function create(parameters) {
     var subtype = parameters.data.annotationType;

     switch (subtype) {
       case _util.AnnotationType.LINK:
         return new LinkAnnotationElement(parameters);

       case _util.AnnotationType.TEXT:
         return new TextAnnotationElement(parameters);

       case _util.AnnotationType.WIDGET:
         var fieldType = parameters.data.fieldType;

         switch (fieldType) {
           case 'Tx':
             return new TextWidgetAnnotationElement(parameters);

           case 'Btn':
             if (parameters.data.radioButton) {
               return new RadioButtonWidgetAnnotationElement(parameters);
             } else if (parameters.data.checkBox) {
               return new CheckboxWidgetAnnotationElement(parameters);
             }

             return new PushButtonWidgetAnnotationElement(parameters);

           case 'Ch':
             return new ChoiceWidgetAnnotationElement(parameters);
         }

         return new WidgetAnnotationElement(parameters);

       case _util.AnnotationType.POPUP:
         return new PopupAnnotationElement(parameters);

       case _util.AnnotationType.FREETEXT:
         return new FreeTextAnnotationElement(parameters);

       case _util.AnnotationType.LINE:
         return new LineAnnotationElement(parameters);

       case _util.AnnotationType.SQUARE:
         return new SquareAnnotationElement(parameters);

       case _util.AnnotationType.CIRCLE:
         return new CircleAnnotationElement(parameters);

       case _util.AnnotationType.POLYLINE:
         return new PolylineAnnotationElement(parameters);

       case _util.AnnotationType.CARET:
         return new CaretAnnotationElement(parameters);

       case _util.AnnotationType.INK:
         return new InkAnnotationElement(parameters);

       case _util.AnnotationType.POLYGON:
         return new PolygonAnnotationElement(parameters);

       case _util.AnnotationType.HIGHLIGHT:
         return new HighlightAnnotationElement(parameters);

       case _util.AnnotationType.UNDERLINE:
         return new UnderlineAnnotationElement(parameters);

       case _util.AnnotationType.SQUIGGLY:
         return new SquigglyAnnotationElement(parameters);

       case _util.AnnotationType.STRIKEOUT:
         return new StrikeOutAnnotationElement(parameters);

       case _util.AnnotationType.STAMP:
         return new StampAnnotationElement(parameters);

       case _util.AnnotationType.FILEATTACHMENT:
         return new FileAttachmentAnnotationElement(parameters);

       default:
         return new AnnotationElement(parameters);
     }
   }
 }]);

 return AnnotationElementFactory;
}();

var AnnotationElement =
/*#__PURE__*/
function () {
 function AnnotationElement(parameters) {
   var isRenderable = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
   var ignoreBorder = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

   _classCallCheck(this, AnnotationElement);

   this.isRenderable = isRenderable;
   this.data = parameters.data;
   this.layer = parameters.layer;
   this.page = parameters.page;
   this.viewport = parameters.viewport;
   this.linkService = parameters.linkService;
   this.downloadManager = parameters.downloadManager;
   this.imageResourcesPath = parameters.imageResourcesPath;
   this.renderInteractiveForms = parameters.renderInteractiveForms;
   this.svgFactory = parameters.svgFactory;

   if (isRenderable) {
     this.container = this._createContainer(ignoreBorder);
   }
 }

 _createClass(AnnotationElement, [{
   key: "_createContainer",
   value: function _createContainer() {
     var ignoreBorder = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
     var data = this.data,
         page = this.page,
         viewport = this.viewport;
     var container = document.createElement('section');
     var width = data.rect[2] - data.rect[0];
     var height = data.rect[3] - data.rect[1];
     container.setAttribute('data-annotation-id', data.id);

     var rect = _util.Util.normalizeRect([data.rect[0], page.view[3] - data.rect[1] + page.view[1], data.rect[2], page.view[3] - data.rect[3] + page.view[1]]);

     container.style.transform = 'matrix(' + viewport.transform.join(',') + ')';
     container.style.transformOrigin = -rect[0] + 'px ' + -rect[1] + 'px';

     if (!ignoreBorder && data.borderStyle.width > 0) {
       container.style.borderWidth = data.borderStyle.width + 'px';

       if (data.borderStyle.style !== _util.AnnotationBorderStyleType.UNDERLINE) {
         width = width - 2 * data.borderStyle.width;
         height = height - 2 * data.borderStyle.width;
       }

       var horizontalRadius = data.borderStyle.horizontalCornerRadius;
       var verticalRadius = data.borderStyle.verticalCornerRadius;

       if (horizontalRadius > 0 || verticalRadius > 0) {
         var radius = horizontalRadius + 'px / ' + verticalRadius + 'px';
         container.style.borderRadius = radius;
       }

       switch (data.borderStyle.style) {
         case _util.AnnotationBorderStyleType.SOLID:
           container.style.borderStyle = 'solid';
           break;

         case _util.AnnotationBorderStyleType.DASHED:
           container.style.borderStyle = 'dashed';
           break;

         case _util.AnnotationBorderStyleType.BEVELED:
           (0, _util.warn)('Unimplemented border style: beveled');
           break;

         case _util.AnnotationBorderStyleType.INSET:
           (0, _util.warn)('Unimplemented border style: inset');
           break;

         case _util.AnnotationBorderStyleType.UNDERLINE:
           container.style.borderBottomStyle = 'solid';
           break;

         default:
           break;
       }

       if (data.color) {
         container.style.borderColor = _util.Util.makeCssRgb(data.color[0] | 0, data.color[1] | 0, data.color[2] | 0);
       } else {
         container.style.borderWidth = 0;
       }
     }

     container.style.left = rect[0] + 'px';
     container.style.top = rect[1] + 'px';
     container.style.width = width + 'px';
     container.style.height = height + 'px';
     return container;
   }
 }, {
   key: "_createPopup",
   value: function _createPopup(container, trigger, data) {
     if (!trigger) {
       trigger = document.createElement('div');
       trigger.style.height = container.style.height;
       trigger.style.width = container.style.width;
       container.appendChild(trigger);
     }

     var popupElement = new PopupElement({
       container: container,
       trigger: trigger,
       color: data.color,
       title: data.title,
       modificationDate: data.modificationDate,
       contents: data.contents,
       hideWrapper: true
     });
     var popup = popupElement.render();
     popup.style.left = container.style.width;
     container.appendChild(popup);
   }
 }, {
   key: "render",
   value: function render() {
     (0, _util.unreachable)('Abstract method `AnnotationElement.render` called');
   }
 }]);

 return AnnotationElement;
}();

var LinkAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement) {
 _inherits(LinkAnnotationElement, _AnnotationElement);

 function LinkAnnotationElement(parameters) {
   _classCallCheck(this, LinkAnnotationElement);

   var isRenderable = !!(parameters.data.url || parameters.data.dest || parameters.data.action);
   return _possibleConstructorReturn(this, _getPrototypeOf(LinkAnnotationElement).call(this, parameters, isRenderable));
 }

 _createClass(LinkAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'linkAnnotation';
     var data = this.data,
         linkService = this.linkService;
     var link = document.createElement('a');
     (0, _display_utils.addLinkAttributes)(link, {
       url: data.url,
       target: data.newWindow ? _display_utils.LinkTarget.BLANK : linkService.externalLinkTarget,
       rel: linkService.externalLinkRel
     });

     if (!data.url) {
       if (data.action) {
         this._bindNamedAction(link, data.action);
       } else {
         this._bindLink(link, data.dest);
       }
     }

     this.container.appendChild(link);
     return this.container;
   }
 }, {
   key: "_bindLink",
   value: function _bindLink(link, destination) {
     var _this = this;

     link.href = this.linkService.getDestinationHash(destination);

     link.onclick = function () {
       if (destination) {
         _this.linkService.navigateTo(destination);
       }

       return false;
     };

     if (destination) {
       link.className = 'internalLink';
     }
   }
 }, {
   key: "_bindNamedAction",
   value: function _bindNamedAction(link, action) {
     var _this2 = this;

     link.href = this.linkService.getAnchorUrl('');

     link.onclick = function () {
       _this2.linkService.executeNamedAction(action);

       return false;
     };

     link.className = 'internalLink';
   }
 }]);

 return LinkAnnotationElement;
}(AnnotationElement);

var TextAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement2) {
 _inherits(TextAnnotationElement, _AnnotationElement2);

 function TextAnnotationElement(parameters) {
   _classCallCheck(this, TextAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(TextAnnotationElement).call(this, parameters, isRenderable));
 }

 _createClass(TextAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'textAnnotation';
     var image = document.createElement('img');
     image.style.height = this.container.style.height;
     image.style.width = this.container.style.width;
     image.src = this.imageResourcesPath + 'annotation-' + this.data.name.toLowerCase() + '.svg';
     image.alt = '[{{type}} Annotation]';
     image.dataset.l10nId = 'text_annotation_type';
     image.dataset.l10nArgs = JSON.stringify({
       type: this.data.name
     });

     if (!this.data.hasPopup) {
       this._createPopup(this.container, image, this.data);
     }

     this.container.appendChild(image);
     return this.container;
   }
 }]);

 return TextAnnotationElement;
}(AnnotationElement);

var WidgetAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement3) {
 _inherits(WidgetAnnotationElement, _AnnotationElement3);

 function WidgetAnnotationElement() {
   _classCallCheck(this, WidgetAnnotationElement);

   return _possibleConstructorReturn(this, _getPrototypeOf(WidgetAnnotationElement).apply(this, arguments));
 }

 _createClass(WidgetAnnotationElement, [{
   key: "render",
   value: function render() {
     return this.container;
   }
 }]);

 return WidgetAnnotationElement;
}(AnnotationElement);

var TextWidgetAnnotationElement =
/*#__PURE__*/
function (_WidgetAnnotationElem) {
 _inherits(TextWidgetAnnotationElement, _WidgetAnnotationElem);

 function TextWidgetAnnotationElement(parameters) {
   _classCallCheck(this, TextWidgetAnnotationElement);

   var isRenderable = parameters.renderInteractiveForms || !parameters.data.hasAppearance && !!parameters.data.fieldValue;
   return _possibleConstructorReturn(this, _getPrototypeOf(TextWidgetAnnotationElement).call(this, parameters, isRenderable));
 }

 _createClass(TextWidgetAnnotationElement, [{
   key: "render",
   value: function render() {
     var TEXT_ALIGNMENT = ['left', 'center', 'right'];
     this.container.className = 'textWidgetAnnotation';
     var element = null;

     if (this.renderInteractiveForms) {
       if (this.data.multiLine) {
         element = document.createElement('textarea');
         element.textContent = this.data.fieldValue;
       } else {
         element = document.createElement('input');
         element.type = 'text';
         element.setAttribute('value', this.data.fieldValue);
       }

       element.disabled = this.data.readOnly;

       if (this.data.maxLen !== null) {
         element.maxLength = this.data.maxLen;
       }

       if (this.data.comb) {
         var fieldWidth = this.data.rect[2] - this.data.rect[0];
         var combWidth = fieldWidth / this.data.maxLen;
         element.classList.add('comb');
         element.style.letterSpacing = 'calc(' + combWidth + 'px - 1ch)';
       }
     } else {
       element = document.createElement('div');
       element.textContent = this.data.fieldValue;
       element.style.verticalAlign = 'middle';
       element.style.display = 'table-cell';
       var font = null;

       if (this.data.fontRefName && this.page.commonObjs.has(this.data.fontRefName)) {
         font = this.page.commonObjs.get(this.data.fontRefName);
       }

       this._setTextStyle(element, font);
     }

     if (this.data.textAlignment !== null) {
       element.style.textAlign = TEXT_ALIGNMENT[this.data.textAlignment];
     }

     this.container.appendChild(element);
     return this.container;
   }
 }, {
   key: "_setTextStyle",
   value: function _setTextStyle(element, font) {
     var style = element.style;
     style.fontSize = this.data.fontSize + 'px';
     style.direction = this.data.fontDirection < 0 ? 'rtl' : 'ltr';

     if (!font) {
       return;
     }

     style.fontWeight = font.black ? font.bold ? '900' : 'bold' : font.bold ? 'bold' : 'normal';
     style.fontStyle = font.italic ? 'italic' : 'normal';
     var fontFamily = font.loadedName ? '"' + font.loadedName + '", ' : '';
     var fallbackName = font.fallbackName || 'Helvetica, sans-serif';
     style.fontFamily = fontFamily + fallbackName;
   }
 }]);

 return TextWidgetAnnotationElement;
}(WidgetAnnotationElement);

var CheckboxWidgetAnnotationElement =
/*#__PURE__*/
function (_WidgetAnnotationElem2) {
 _inherits(CheckboxWidgetAnnotationElement, _WidgetAnnotationElem2);

 function CheckboxWidgetAnnotationElement(parameters) {
   _classCallCheck(this, CheckboxWidgetAnnotationElement);

   return _possibleConstructorReturn(this, _getPrototypeOf(CheckboxWidgetAnnotationElement).call(this, parameters, parameters.renderInteractiveForms));
 }

 _createClass(CheckboxWidgetAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'buttonWidgetAnnotation checkBox';
     var element = document.createElement('input');
     element.disabled = this.data.readOnly;
     element.type = 'checkbox';

     if (this.data.fieldValue && this.data.fieldValue !== 'Off') {
       element.setAttribute('checked', true);
     }

     this.container.appendChild(element);
     return this.container;
   }
 }]);

 return CheckboxWidgetAnnotationElement;
}(WidgetAnnotationElement);

var RadioButtonWidgetAnnotationElement =
/*#__PURE__*/
function (_WidgetAnnotationElem3) {
 _inherits(RadioButtonWidgetAnnotationElement, _WidgetAnnotationElem3);

 function RadioButtonWidgetAnnotationElement(parameters) {
   _classCallCheck(this, RadioButtonWidgetAnnotationElement);

   return _possibleConstructorReturn(this, _getPrototypeOf(RadioButtonWidgetAnnotationElement).call(this, parameters, parameters.renderInteractiveForms));
 }

 _createClass(RadioButtonWidgetAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'buttonWidgetAnnotation radioButton';
     var element = document.createElement('input');
     element.disabled = this.data.readOnly;
     element.type = 'radio';
     element.name = this.data.fieldName;

     if (this.data.fieldValue === this.data.buttonValue) {
       element.setAttribute('checked', true);
     }

     this.container.appendChild(element);
     return this.container;
   }
 }]);

 return RadioButtonWidgetAnnotationElement;
}(WidgetAnnotationElement);

var PushButtonWidgetAnnotationElement =
/*#__PURE__*/
function (_LinkAnnotationElemen) {
 _inherits(PushButtonWidgetAnnotationElement, _LinkAnnotationElemen);

 function PushButtonWidgetAnnotationElement() {
   _classCallCheck(this, PushButtonWidgetAnnotationElement);

   return _possibleConstructorReturn(this, _getPrototypeOf(PushButtonWidgetAnnotationElement).apply(this, arguments));
 }

 _createClass(PushButtonWidgetAnnotationElement, [{
   key: "render",
   value: function render() {
     var container = _get(_getPrototypeOf(PushButtonWidgetAnnotationElement.prototype), "render", this).call(this);

     container.className = 'buttonWidgetAnnotation pushButton';
     return container;
   }
 }]);

 return PushButtonWidgetAnnotationElement;
}(LinkAnnotationElement);

var ChoiceWidgetAnnotationElement =
/*#__PURE__*/
function (_WidgetAnnotationElem4) {
 _inherits(ChoiceWidgetAnnotationElement, _WidgetAnnotationElem4);

 function ChoiceWidgetAnnotationElement(parameters) {
   _classCallCheck(this, ChoiceWidgetAnnotationElement);

   return _possibleConstructorReturn(this, _getPrototypeOf(ChoiceWidgetAnnotationElement).call(this, parameters, parameters.renderInteractiveForms));
 }

 _createClass(ChoiceWidgetAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'choiceWidgetAnnotation';
     var selectElement = document.createElement('select');
     selectElement.disabled = this.data.readOnly;

     if (!this.data.combo) {
       selectElement.size = this.data.options.length;

       if (this.data.multiSelect) {
         selectElement.multiple = true;
       }
     }

     for (var i = 0, ii = this.data.options.length; i < ii; i++) {
       var option = this.data.options[i];
       var optionElement = document.createElement('option');
       optionElement.textContent = option.displayValue;
       optionElement.value = option.exportValue;

       if (this.data.fieldValue.includes(option.displayValue)) {
         optionElement.setAttribute('selected', true);
       }

       selectElement.appendChild(optionElement);
     }

     this.container.appendChild(selectElement);
     return this.container;
   }
 }]);

 return ChoiceWidgetAnnotationElement;
}(WidgetAnnotationElement);

var PopupAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement4) {
 _inherits(PopupAnnotationElement, _AnnotationElement4);

 function PopupAnnotationElement(parameters) {
   _classCallCheck(this, PopupAnnotationElement);

   var isRenderable = !!(parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(PopupAnnotationElement).call(this, parameters, isRenderable));
 }

 _createClass(PopupAnnotationElement, [{
   key: "render",
   value: function render() {
     var IGNORE_TYPES = ['Line', 'Square', 'Circle', 'PolyLine', 'Polygon', 'Ink'];
     this.container.className = 'popupAnnotation';

     if (IGNORE_TYPES.includes(this.data.parentType)) {
       return this.container;
     }

     var selector = '[data-annotation-id="' + this.data.parentId + '"]';
     var parentElement = this.layer.querySelector(selector);

     if (!parentElement) {
       return this.container;
     }

     var popup = new PopupElement({
       container: this.container,
       trigger: parentElement,
       color: this.data.color,
       title: this.data.title,
       modificationDate: this.data.modificationDate,
       contents: this.data.contents
     });
     var parentLeft = parseFloat(parentElement.style.left);
     var parentWidth = parseFloat(parentElement.style.width);
     this.container.style.transformOrigin = -(parentLeft + parentWidth) + 'px -' + parentElement.style.top;
     this.container.style.left = parentLeft + parentWidth + 'px';
     this.container.appendChild(popup.render());
     return this.container;
   }
 }]);

 return PopupAnnotationElement;
}(AnnotationElement);

var PopupElement =
/*#__PURE__*/
function () {
 function PopupElement(parameters) {
   _classCallCheck(this, PopupElement);

   this.container = parameters.container;
   this.trigger = parameters.trigger;
   this.color = parameters.color;
   this.title = parameters.title;
   this.modificationDate = parameters.modificationDate;
   this.contents = parameters.contents;
   this.hideWrapper = parameters.hideWrapper || false;
   this.pinned = false;
 }

 _createClass(PopupElement, [{
   key: "render",
   value: function render() {
     var BACKGROUND_ENLIGHT = 0.7;
     var wrapper = document.createElement('div');
     wrapper.className = 'popupWrapper';
     this.hideElement = this.hideWrapper ? wrapper : this.container;
     this.hideElement.setAttribute('hidden', true);
     var popup = document.createElement('div');
     popup.className = 'popup';
     var color = this.color;

     if (color) {
       var r = BACKGROUND_ENLIGHT * (255 - color[0]) + color[0];
       var g = BACKGROUND_ENLIGHT * (255 - color[1]) + color[1];
       var b = BACKGROUND_ENLIGHT * (255 - color[2]) + color[2];
       popup.style.backgroundColor = _util.Util.makeCssRgb(r | 0, g | 0, b | 0);
     }

     var title = document.createElement('h1');
     title.textContent = this.title;
     popup.appendChild(title);

     var dateObject = _display_utils.PDFDateString.toDateObject(this.modificationDate);

     if (dateObject) {
       var modificationDate = document.createElement('span');
       modificationDate.textContent = '{{date}}, {{time}}';
       modificationDate.dataset.l10nId = 'annotation_date_string';
       modificationDate.dataset.l10nArgs = JSON.stringify({
         date: dateObject.toLocaleDateString(),
         time: dateObject.toLocaleTimeString()
       });
       popup.appendChild(modificationDate);
     }

     var contents = this._formatContents(this.contents);

     popup.appendChild(contents);
     this.trigger.addEventListener('click', this._toggle.bind(this));
     this.trigger.addEventListener('mouseover', this._show.bind(this, false));
     this.trigger.addEventListener('mouseout', this._hide.bind(this, false));
     popup.addEventListener('click', this._hide.bind(this, true));
     wrapper.appendChild(popup);
     return wrapper;
   }
 }, {
   key: "_formatContents",
   value: function _formatContents(contents) {
     var p = document.createElement('p');
     var lines = contents.split(/(?:\r\n?|\n)/);

     for (var i = 0, ii = lines.length; i < ii; ++i) {
       var line = lines[i];
       p.appendChild(document.createTextNode(line));

       if (i < ii - 1) {
         p.appendChild(document.createElement('br'));
       }
     }

     return p;
   }
 }, {
   key: "_toggle",
   value: function _toggle() {
     if (this.pinned) {
       this._hide(true);
     } else {
       this._show(true);
     }
   }
 }, {
   key: "_show",
   value: function _show() {
     var pin = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

     if (pin) {
       this.pinned = true;
     }

     if (this.hideElement.hasAttribute('hidden')) {
       this.hideElement.removeAttribute('hidden');
       this.container.style.zIndex += 1;
     }
   }
 }, {
   key: "_hide",
   value: function _hide() {
     var unpin = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

     if (unpin) {
       this.pinned = false;
     }

     if (!this.hideElement.hasAttribute('hidden') && !this.pinned) {
       this.hideElement.setAttribute('hidden', true);
       this.container.style.zIndex -= 1;
     }
   }
 }]);

 return PopupElement;
}();

var FreeTextAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement5) {
 _inherits(FreeTextAnnotationElement, _AnnotationElement5);

 function FreeTextAnnotationElement(parameters) {
   _classCallCheck(this, FreeTextAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(FreeTextAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(FreeTextAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'freeTextAnnotation';

     if (!this.data.hasPopup) {
       this._createPopup(this.container, null, this.data);
     }

     return this.container;
   }
 }]);

 return FreeTextAnnotationElement;
}(AnnotationElement);

var LineAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement6) {
 _inherits(LineAnnotationElement, _AnnotationElement6);

 function LineAnnotationElement(parameters) {
   _classCallCheck(this, LineAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(LineAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(LineAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'lineAnnotation';
     var data = this.data;
     var width = data.rect[2] - data.rect[0];
     var height = data.rect[3] - data.rect[1];
     var svg = this.svgFactory.create(width, height);
     var line = this.svgFactory.createElement('svg:line');
     line.setAttribute('x1', data.rect[2] - data.lineCoordinates[0]);
     line.setAttribute('y1', data.rect[3] - data.lineCoordinates[1]);
     line.setAttribute('x2', data.rect[2] - data.lineCoordinates[2]);
     line.setAttribute('y2', data.rect[3] - data.lineCoordinates[3]);
     line.setAttribute('stroke-width', data.borderStyle.width);
     line.setAttribute('stroke', 'transparent');
     svg.appendChild(line);
     this.container.append(svg);

     this._createPopup(this.container, line, data);

     return this.container;
   }
 }]);

 return LineAnnotationElement;
}(AnnotationElement);

var SquareAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement7) {
 _inherits(SquareAnnotationElement, _AnnotationElement7);

 function SquareAnnotationElement(parameters) {
   _classCallCheck(this, SquareAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(SquareAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(SquareAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'squareAnnotation';
     var data = this.data;
     var width = data.rect[2] - data.rect[0];
     var height = data.rect[3] - data.rect[1];
     var svg = this.svgFactory.create(width, height);
     var borderWidth = data.borderStyle.width;
     var square = this.svgFactory.createElement('svg:rect');
     square.setAttribute('x', borderWidth / 2);
     square.setAttribute('y', borderWidth / 2);
     square.setAttribute('width', width - borderWidth);
     square.setAttribute('height', height - borderWidth);
     square.setAttribute('stroke-width', borderWidth);
     square.setAttribute('stroke', 'transparent');
     square.setAttribute('fill', 'none');
     svg.appendChild(square);
     this.container.append(svg);

     this._createPopup(this.container, square, data);

     return this.container;
   }
 }]);

 return SquareAnnotationElement;
}(AnnotationElement);

var CircleAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement8) {
 _inherits(CircleAnnotationElement, _AnnotationElement8);

 function CircleAnnotationElement(parameters) {
   _classCallCheck(this, CircleAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(CircleAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(CircleAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'circleAnnotation';
     var data = this.data;
     var width = data.rect[2] - data.rect[0];
     var height = data.rect[3] - data.rect[1];
     var svg = this.svgFactory.create(width, height);
     var borderWidth = data.borderStyle.width;
     var circle = this.svgFactory.createElement('svg:ellipse');
     circle.setAttribute('cx', width / 2);
     circle.setAttribute('cy', height / 2);
     circle.setAttribute('rx', width / 2 - borderWidth / 2);
     circle.setAttribute('ry', height / 2 - borderWidth / 2);
     circle.setAttribute('stroke-width', borderWidth);
     circle.setAttribute('stroke', 'transparent');
     circle.setAttribute('fill', 'none');
     svg.appendChild(circle);
     this.container.append(svg);

     this._createPopup(this.container, circle, data);

     return this.container;
   }
 }]);

 return CircleAnnotationElement;
}(AnnotationElement);

var PolylineAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement9) {
 _inherits(PolylineAnnotationElement, _AnnotationElement9);

 function PolylineAnnotationElement(parameters) {
   var _this3;

   _classCallCheck(this, PolylineAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   _this3 = _possibleConstructorReturn(this, _getPrototypeOf(PolylineAnnotationElement).call(this, parameters, isRenderable, true));
   _this3.containerClassName = 'polylineAnnotation';
   _this3.svgElementName = 'svg:polyline';
   return _this3;
 }

 _createClass(PolylineAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = this.containerClassName;
     var data = this.data;
     var width = data.rect[2] - data.rect[0];
     var height = data.rect[3] - data.rect[1];
     var svg = this.svgFactory.create(width, height);
     var vertices = data.vertices;
     var points = [];

     for (var i = 0, ii = vertices.length; i < ii; i++) {
       var x = vertices[i].x - data.rect[0];
       var y = data.rect[3] - vertices[i].y;
       points.push(x + ',' + y);
     }

     points = points.join(' ');
     var borderWidth = data.borderStyle.width;
     var polyline = this.svgFactory.createElement(this.svgElementName);
     polyline.setAttribute('points', points);
     polyline.setAttribute('stroke-width', borderWidth);
     polyline.setAttribute('stroke', 'transparent');
     polyline.setAttribute('fill', 'none');
     svg.appendChild(polyline);
     this.container.append(svg);

     this._createPopup(this.container, polyline, data);

     return this.container;
   }
 }]);

 return PolylineAnnotationElement;
}(AnnotationElement);

var PolygonAnnotationElement =
/*#__PURE__*/
function (_PolylineAnnotationEl) {
 _inherits(PolygonAnnotationElement, _PolylineAnnotationEl);

 function PolygonAnnotationElement(parameters) {
   var _this4;

   _classCallCheck(this, PolygonAnnotationElement);

   _this4 = _possibleConstructorReturn(this, _getPrototypeOf(PolygonAnnotationElement).call(this, parameters));
   _this4.containerClassName = 'polygonAnnotation';
   _this4.svgElementName = 'svg:polygon';
   return _this4;
 }

 return PolygonAnnotationElement;
}(PolylineAnnotationElement);

var CaretAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement10) {
 _inherits(CaretAnnotationElement, _AnnotationElement10);

 function CaretAnnotationElement(parameters) {
   _classCallCheck(this, CaretAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(CaretAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(CaretAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'caretAnnotation';

     if (!this.data.hasPopup) {
       this._createPopup(this.container, null, this.data);
     }

     return this.container;
   }
 }]);

 return CaretAnnotationElement;
}(AnnotationElement);

var InkAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement11) {
 _inherits(InkAnnotationElement, _AnnotationElement11);

 function InkAnnotationElement(parameters) {
   var _this5;

   _classCallCheck(this, InkAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   _this5 = _possibleConstructorReturn(this, _getPrototypeOf(InkAnnotationElement).call(this, parameters, isRenderable, true));
   _this5.containerClassName = 'inkAnnotation';
   _this5.svgElementName = 'svg:polyline';
   return _this5;
 }

 _createClass(InkAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = this.containerClassName;
     var data = this.data;
     var width = data.rect[2] - data.rect[0];
     var height = data.rect[3] - data.rect[1];
     var svg = this.svgFactory.create(width, height);
     var inkLists = data.inkLists;

     for (var i = 0, ii = inkLists.length; i < ii; i++) {
       var inkList = inkLists[i];
       var points = [];

       for (var j = 0, jj = inkList.length; j < jj; j++) {
         var x = inkList[j].x - data.rect[0];
         var y = data.rect[3] - inkList[j].y;
         points.push(x + ',' + y);
       }

       points = points.join(' ');
       var borderWidth = data.borderStyle.width;
       var polyline = this.svgFactory.createElement(this.svgElementName);
       polyline.setAttribute('points', points);
       polyline.setAttribute('stroke-width', borderWidth);
       polyline.setAttribute('stroke', 'transparent');
       polyline.setAttribute('fill', 'none');

       this._createPopup(this.container, polyline, data);

       svg.appendChild(polyline);
     }

     this.container.append(svg);
     return this.container;
   }
 }]);

 return InkAnnotationElement;
}(AnnotationElement);

var HighlightAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement12) {
 _inherits(HighlightAnnotationElement, _AnnotationElement12);

 function HighlightAnnotationElement(parameters) {
   _classCallCheck(this, HighlightAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(HighlightAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(HighlightAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'highlightAnnotation';

     if (!this.data.hasPopup) {
       this._createPopup(this.container, null, this.data);
     }

     return this.container;
   }
 }]);

 return HighlightAnnotationElement;
}(AnnotationElement);

var UnderlineAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement13) {
 _inherits(UnderlineAnnotationElement, _AnnotationElement13);

 function UnderlineAnnotationElement(parameters) {
   _classCallCheck(this, UnderlineAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(UnderlineAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(UnderlineAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'underlineAnnotation';

     if (!this.data.hasPopup) {
       this._createPopup(this.container, null, this.data);
     }

     return this.container;
   }
 }]);

 return UnderlineAnnotationElement;
}(AnnotationElement);

var SquigglyAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement14) {
 _inherits(SquigglyAnnotationElement, _AnnotationElement14);

 function SquigglyAnnotationElement(parameters) {
   _classCallCheck(this, SquigglyAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(SquigglyAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(SquigglyAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'squigglyAnnotation';

     if (!this.data.hasPopup) {
       this._createPopup(this.container, null, this.data);
     }

     return this.container;
   }
 }]);

 return SquigglyAnnotationElement;
}(AnnotationElement);

var StrikeOutAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement15) {
 _inherits(StrikeOutAnnotationElement, _AnnotationElement15);

 function StrikeOutAnnotationElement(parameters) {
   _classCallCheck(this, StrikeOutAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(StrikeOutAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(StrikeOutAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'strikeoutAnnotation';

     if (!this.data.hasPopup) {
       this._createPopup(this.container, null, this.data);
     }

     return this.container;
   }
 }]);

 return StrikeOutAnnotationElement;
}(AnnotationElement);

var StampAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement16) {
 _inherits(StampAnnotationElement, _AnnotationElement16);

 function StampAnnotationElement(parameters) {
   _classCallCheck(this, StampAnnotationElement);

   var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
   return _possibleConstructorReturn(this, _getPrototypeOf(StampAnnotationElement).call(this, parameters, isRenderable, true));
 }

 _createClass(StampAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'stampAnnotation';

     if (!this.data.hasPopup) {
       this._createPopup(this.container, null, this.data);
     }

     return this.container;
   }
 }]);

 return StampAnnotationElement;
}(AnnotationElement);

var FileAttachmentAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement17) {
 _inherits(FileAttachmentAnnotationElement, _AnnotationElement17);

 function FileAttachmentAnnotationElement(parameters) {
   var _this6;

   _classCallCheck(this, FileAttachmentAnnotationElement);

   _this6 = _possibleConstructorReturn(this, _getPrototypeOf(FileAttachmentAnnotationElement).call(this, parameters, true));
   var _this6$data$file = _this6.data.file,
       filename = _this6$data$file.filename,
       content = _this6$data$file.content;
   _this6.filename = (0, _display_utils.getFilenameFromUrl)(filename);
   _this6.content = content;

   if (_this6.linkService.eventBus) {
     _this6.linkService.eventBus.dispatch('fileattachmentannotation', {
       source: _assertThisInitialized(_this6),
       id: (0, _util.stringToPDFString)(filename),
       filename: filename,
       content: content
     });
   }

   return _this6;
 }

 _createClass(FileAttachmentAnnotationElement, [{
   key: "render",
   value: function render() {
     this.container.className = 'fileAttachmentAnnotation';
     var trigger = document.createElement('div');
     trigger.style.height = this.container.style.height;
     trigger.style.width = this.container.style.width;
     trigger.addEventListener('dblclick', this._download.bind(this));

     if (!this.data.hasPopup && (this.data.title || this.data.contents)) {
       this._createPopup(this.container, trigger, this.data);
     }

     this.container.appendChild(trigger);
     return this.container;
   }
 }, {
   key: "_download",
   value: function _download() {
     if (!this.downloadManager) {
       (0, _util.warn)('Download cannot be started due to unavailable download manager');
       return;
     }

     this.downloadManager.downloadData(this.content, this.filename, '');
   }
 }]);

 return FileAttachmentAnnotationElement;
}(AnnotationElement);

var AnnotationLayer =
/*#__PURE__*/
function () {
 function AnnotationLayer() {
   _classCallCheck(this, AnnotationLayer);
 }

 _createClass(AnnotationLayer, null, [{
   key: "render",
   value: function render(parameters) {
     for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {
       var data = parameters.annotations[i];

       if (!data) {
         continue;
       }

       var element = AnnotationElementFactory.create({
         data: data,
         layer: parameters.div,
         page: parameters.page,
         viewport: parameters.viewport,
         linkService: parameters.linkService,
         downloadManager: parameters.downloadManager,
         imageResourcesPath: parameters.imageResourcesPath || '',
         renderInteractiveForms: parameters.renderInteractiveForms || false,
         svgFactory: new _display_utils.DOMSVGFactory()
       });

       if (element.isRenderable) {
         parameters.div.appendChild(element.render());
       }
     }
   }
 }, {
   key: "update",
   value: function update(parameters) {
     for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {
       var data = parameters.annotations[i];
       var element = parameters.div.querySelector('[data-annotation-id="' + data.id + '"]');

       if (element) {
         element.style.transform = 'matrix(' + parameters.viewport.transform.join(',') + ')';
       }
     }

     parameters.div.removeAttribute('hidden');
   }
 }]);

 return AnnotationLayer;
}();

exports.AnnotationLayer = AnnotationLayer;

/***/ }),
/* 164 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.SVGGraphics = void 0;

var _util = __w_pdfjs_require__(1);

var _display_utils = __w_pdfjs_require__(151);

var _is_node = _interopRequireDefault(__w_pdfjs_require__(4));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var SVGGraphics = function SVGGraphics() {
 throw new Error('Not implemented: SVGGraphics');
};

exports.SVGGraphics = SVGGraphics;
{
 var opListToTree = function opListToTree(opList) {
   var opTree = [];
   var tmp = [];
   var _iteratorNormalCompletion = true;
   var _didIteratorError = false;
   var _iteratorError = undefined;

   try {
     for (var _iterator = opList[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
       var opListElement = _step.value;

       if (opListElement.fn === 'save') {
         opTree.push({
           'fnId': 92,
           'fn': 'group',
           'items': []
         });
         tmp.push(opTree);
         opTree = opTree[opTree.length - 1].items;
         continue;
       }

       if (opListElement.fn === 'restore') {
         opTree = tmp.pop();
       } else {
         opTree.push(opListElement);
       }
     }
   } catch (err) {
     _didIteratorError = true;
     _iteratorError = err;
   } finally {
     try {
       if (!_iteratorNormalCompletion && _iterator["return"] != null) {
         _iterator["return"]();
       }
     } finally {
       if (_didIteratorError) {
         throw _iteratorError;
       }
     }
   }

   return opTree;
 };

 var pf = function pf(value) {
   if (Number.isInteger(value)) {
     return value.toString();
   }

   var s = value.toFixed(10);
   var i = s.length - 1;

   if (s[i] !== '0') {
     return s;
   }

   do {
     i--;
   } while (s[i] === '0');

   return s.substring(0, s[i] === '.' ? i : i + 1);
 };

 var pm = function pm(m) {
   if (m[4] === 0 && m[5] === 0) {
     if (m[1] === 0 && m[2] === 0) {
       if (m[0] === 1 && m[3] === 1) {
         return '';
       }

       return "scale(".concat(pf(m[0]), " ").concat(pf(m[3]), ")");
     }

     if (m[0] === m[3] && m[1] === -m[2]) {
       var a = Math.acos(m[0]) * 180 / Math.PI;
       return "rotate(".concat(pf(a), ")");
     }
   } else {
     if (m[0] === 1 && m[1] === 0 && m[2] === 0 && m[3] === 1) {
       return "translate(".concat(pf(m[4]), " ").concat(pf(m[5]), ")");
     }
   }

   return "matrix(".concat(pf(m[0]), " ").concat(pf(m[1]), " ").concat(pf(m[2]), " ").concat(pf(m[3]), " ").concat(pf(m[4]), " ") + "".concat(pf(m[5]), ")");
 };

 var SVG_DEFAULTS = {
   fontStyle: 'normal',
   fontWeight: 'normal',
   fillColor: '#000000'
 };
 var XML_NS = 'http://www.w3.org/XML/1998/namespace';
 var XLINK_NS = 'http://www.w3.org/1999/xlink';
 var LINE_CAP_STYLES = ['butt', 'round', 'square'];
 var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];

 var convertImgDataToPng = function () {
   var PNG_HEADER = new Uint8Array([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]);
   var CHUNK_WRAPPER_SIZE = 12;
   var crcTable = new Int32Array(256);

   for (var i = 0; i < 256; i++) {
     var c = i;

     for (var h = 0; h < 8; h++) {
       if (c & 1) {
         c = 0xedB88320 ^ c >> 1 & 0x7fffffff;
       } else {
         c = c >> 1 & 0x7fffffff;
       }
     }

     crcTable[i] = c;
   }

   function crc32(data, start, end) {
     var crc = -1;

     for (var _i = start; _i < end; _i++) {
       var a = (crc ^ data[_i]) & 0xff;
       var b = crcTable[a];
       crc = crc >>> 8 ^ b;
     }

     return crc ^ -1;
   }

   function writePngChunk(type, body, data, offset) {
     var p = offset;
     var len = body.length;
     data[p] = len >> 24 & 0xff;
     data[p + 1] = len >> 16 & 0xff;
     data[p + 2] = len >> 8 & 0xff;
     data[p + 3] = len & 0xff;
     p += 4;
     data[p] = type.charCodeAt(0) & 0xff;
     data[p + 1] = type.charCodeAt(1) & 0xff;
     data[p + 2] = type.charCodeAt(2) & 0xff;
     data[p + 3] = type.charCodeAt(3) & 0xff;
     p += 4;
     data.set(body, p);
     p += body.length;
     var crc = crc32(data, offset + 4, p);
     data[p] = crc >> 24 & 0xff;
     data[p + 1] = crc >> 16 & 0xff;
     data[p + 2] = crc >> 8 & 0xff;
     data[p + 3] = crc & 0xff;
   }

   function adler32(data, start, end) {
     var a = 1;
     var b = 0;

     for (var _i2 = start; _i2 < end; ++_i2) {
       a = (a + (data[_i2] & 0xff)) % 65521;
       b = (b + a) % 65521;
     }

     return b << 16 | a;
   }

   function deflateSync(literals) {
     if (!(0, _is_node["default"])()) {
       return deflateSyncUncompressed(literals);
     }

     try {
       var input;

       if (parseInt(process.versions.node) >= 8) {
         input = literals;
       } else {
         input = new Buffer(literals);
       }

       var output = require('zlib').deflateSync(input, {
         level: 9
       });

       return output instanceof Uint8Array ? output : new Uint8Array(output);
     } catch (e) {
       (0, _util.warn)('Not compressing PNG because zlib.deflateSync is unavailable: ' + e);
     }

     return deflateSyncUncompressed(literals);
   }

   function deflateSyncUncompressed(literals) {
     var len = literals.length;
     var maxBlockLength = 0xFFFF;
     var deflateBlocks = Math.ceil(len / maxBlockLength);
     var idat = new Uint8Array(2 + len + deflateBlocks * 5 + 4);
     var pi = 0;
     idat[pi++] = 0x78;
     idat[pi++] = 0x9c;
     var pos = 0;

     while (len > maxBlockLength) {
       idat[pi++] = 0x00;
       idat[pi++] = 0xff;
       idat[pi++] = 0xff;
       idat[pi++] = 0x00;
       idat[pi++] = 0x00;
       idat.set(literals.subarray(pos, pos + maxBlockLength), pi);
       pi += maxBlockLength;
       pos += maxBlockLength;
       len -= maxBlockLength;
     }

     idat[pi++] = 0x01;
     idat[pi++] = len & 0xff;
     idat[pi++] = len >> 8 & 0xff;
     idat[pi++] = ~len & 0xffff & 0xff;
     idat[pi++] = (~len & 0xffff) >> 8 & 0xff;
     idat.set(literals.subarray(pos), pi);
     pi += literals.length - pos;
     var adler = adler32(literals, 0, literals.length);
     idat[pi++] = adler >> 24 & 0xff;
     idat[pi++] = adler >> 16 & 0xff;
     idat[pi++] = adler >> 8 & 0xff;
     idat[pi++] = adler & 0xff;
     return idat;
   }

   function encode(imgData, kind, forceDataSchema, isMask) {
     var width = imgData.width;
     var height = imgData.height;
     var bitDepth, colorType, lineSize;
     var bytes = imgData.data;

     switch (kind) {
       case _util.ImageKind.GRAYSCALE_1BPP:
         colorType = 0;
         bitDepth = 1;
         lineSize = width + 7 >> 3;
         break;

       case _util.ImageKind.RGB_24BPP:
         colorType = 2;
         bitDepth = 8;
         lineSize = width * 3;
         break;

       case _util.ImageKind.RGBA_32BPP:
         colorType = 6;
         bitDepth = 8;
         lineSize = width * 4;
         break;

       default:
         throw new Error('invalid format');
     }

     var literals = new Uint8Array((1 + lineSize) * height);
     var offsetLiterals = 0,
         offsetBytes = 0;

     for (var y = 0; y < height; ++y) {
       literals[offsetLiterals++] = 0;
       literals.set(bytes.subarray(offsetBytes, offsetBytes + lineSize), offsetLiterals);
       offsetBytes += lineSize;
       offsetLiterals += lineSize;
     }

     if (kind === _util.ImageKind.GRAYSCALE_1BPP && isMask) {
       offsetLiterals = 0;

       for (var _y = 0; _y < height; _y++) {
         offsetLiterals++;

         for (var _i3 = 0; _i3 < lineSize; _i3++) {
           literals[offsetLiterals++] ^= 0xFF;
         }
       }
     }

     var ihdr = new Uint8Array([width >> 24 & 0xff, width >> 16 & 0xff, width >> 8 & 0xff, width & 0xff, height >> 24 & 0xff, height >> 16 & 0xff, height >> 8 & 0xff, height & 0xff, bitDepth, colorType, 0x00, 0x00, 0x00]);
     var idat = deflateSync(literals);
     var pngLength = PNG_HEADER.length + CHUNK_WRAPPER_SIZE * 3 + ihdr.length + idat.length;
     var data = new Uint8Array(pngLength);
     var offset = 0;
     data.set(PNG_HEADER, offset);
     offset += PNG_HEADER.length;
     writePngChunk('IHDR', ihdr, data, offset);
     offset += CHUNK_WRAPPER_SIZE + ihdr.length;
     writePngChunk('IDATA', idat, data, offset);
     offset += CHUNK_WRAPPER_SIZE + idat.length;
     writePngChunk('IEND', new Uint8Array(0), data, offset);
     return (0, _util.createObjectURL)(data, 'image/png', forceDataSchema);
   }

   return function convertImgDataToPng(imgData, forceDataSchema, isMask) {
     var kind = imgData.kind === undefined ? _util.ImageKind.GRAYSCALE_1BPP : imgData.kind;
     return encode(imgData, kind, forceDataSchema, isMask);
   };
 }();

 var SVGExtraState =
 /*#__PURE__*/
 function () {
   function SVGExtraState() {
     _classCallCheck(this, SVGExtraState);

     this.fontSizeScale = 1;
     this.fontWeight = SVG_DEFAULTS.fontWeight;
     this.fontSize = 0;
     this.textMatrix = _util.IDENTITY_MATRIX;
     this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
     this.leading = 0;
     this.textRenderingMode = _util.TextRenderingMode.FILL;
     this.textMatrixScale = 1;
     this.x = 0;
     this.y = 0;
     this.lineX = 0;
     this.lineY = 0;
     this.charSpacing = 0;
     this.wordSpacing = 0;
     this.textHScale = 1;
     this.textRise = 0;
     this.fillColor = SVG_DEFAULTS.fillColor;
     this.strokeColor = '#000000';
     this.fillAlpha = 1;
     this.strokeAlpha = 1;
     this.lineWidth = 1;
     this.lineJoin = '';
     this.lineCap = '';
     this.miterLimit = 0;
     this.dashArray = [];
     this.dashPhase = 0;
     this.dependencies = [];
     this.activeClipUrl = null;
     this.clipGroup = null;
     this.maskId = '';
   }

   _createClass(SVGExtraState, [{
     key: "clone",
     value: function clone() {
       return Object.create(this);
     }
   }, {
     key: "setCurrentPoint",
     value: function setCurrentPoint(x, y) {
       this.x = x;
       this.y = y;
     }
   }]);

   return SVGExtraState;
 }();

 var clipCount = 0;
 var maskCount = 0;
 var shadingCount = 0;

 exports.SVGGraphics = SVGGraphics =
 /*#__PURE__*/
 function () {
   function SVGGraphics(commonObjs, objs, forceDataSchema) {
     _classCallCheck(this, SVGGraphics);

     this.svgFactory = new _display_utils.DOMSVGFactory();
     this.current = new SVGExtraState();
     this.transformMatrix = _util.IDENTITY_MATRIX;
     this.transformStack = [];
     this.extraStack = [];
     this.commonObjs = commonObjs;
     this.objs = objs;
     this.pendingClip = null;
     this.pendingEOFill = false;
     this.embedFonts = false;
     this.embeddedFonts = Object.create(null);
     this.cssStyle = null;
     this.forceDataSchema = !!forceDataSchema;
     this._operatorIdMapping = [];

     for (var op in _util.OPS) {
       this._operatorIdMapping[_util.OPS[op]] = op;
     }
   }

   _createClass(SVGGraphics, [{
     key: "save",
     value: function save() {
       this.transformStack.push(this.transformMatrix);
       var old = this.current;
       this.extraStack.push(old);
       this.current = old.clone();
     }
   }, {
     key: "restore",
     value: function restore() {
       this.transformMatrix = this.transformStack.pop();
       this.current = this.extraStack.pop();
       this.pendingClip = null;
       this.tgrp = null;
     }
   }, {
     key: "group",
     value: function group(items) {
       this.save();
       this.executeOpTree(items);
       this.restore();
     }
   }, {
     key: "loadDependencies",
     value: function loadDependencies(operatorList) {
       var _this = this;

       var fnArray = operatorList.fnArray;
       var argsArray = operatorList.argsArray;

       for (var i = 0, ii = fnArray.length; i < ii; i++) {
         if (fnArray[i] !== _util.OPS.dependency) {
           continue;
         }

         var _iteratorNormalCompletion2 = true;
         var _didIteratorError2 = false;
         var _iteratorError2 = undefined;

         try {
           var _loop = function _loop() {
             var obj = _step2.value;
             var objsPool = obj.startsWith('g_') ? _this.commonObjs : _this.objs;
             var promise = new Promise(function (resolve) {
               objsPool.get(obj, resolve);
             });

             _this.current.dependencies.push(promise);
           };

           for (var _iterator2 = argsArray[i][Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
             _loop();
           }
         } catch (err) {
           _didIteratorError2 = true;
           _iteratorError2 = err;
         } finally {
           try {
             if (!_iteratorNormalCompletion2 && _iterator2["return"] != null) {
               _iterator2["return"]();
             }
           } finally {
             if (_didIteratorError2) {
               throw _iteratorError2;
             }
           }
         }
       }

       return Promise.all(this.current.dependencies);
     }
   }, {
     key: "transform",
     value: function transform(a, b, c, d, e, f) {
       var transformMatrix = [a, b, c, d, e, f];
       this.transformMatrix = _util.Util.transform(this.transformMatrix, transformMatrix);
       this.tgrp = null;
     }
   }, {
     key: "getSVG",
     value: function getSVG(operatorList, viewport) {
       var _this2 = this;

       this.viewport = viewport;

       var svgElement = this._initialize(viewport);

       return this.loadDependencies(operatorList).then(function () {
         _this2.transformMatrix = _util.IDENTITY_MATRIX;

         _this2.executeOpTree(_this2.convertOpList(operatorList));

         return svgElement;
       });
     }
   }, {
     key: "convertOpList",
     value: function convertOpList(operatorList) {
       var operatorIdMapping = this._operatorIdMapping;
       var argsArray = operatorList.argsArray;
       var fnArray = operatorList.fnArray;
       var opList = [];

       for (var i = 0, ii = fnArray.length; i < ii; i++) {
         var fnId = fnArray[i];
         opList.push({
           'fnId': fnId,
           'fn': operatorIdMapping[fnId],
           'args': argsArray[i]
         });
       }

       return opListToTree(opList);
     }
   }, {
     key: "executeOpTree",
     value: function executeOpTree(opTree) {
       var _iteratorNormalCompletion3 = true;
       var _didIteratorError3 = false;
       var _iteratorError3 = undefined;

       try {
         for (var _iterator3 = opTree[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
           var opTreeElement = _step3.value;
           var fn = opTreeElement.fn;
           var fnId = opTreeElement.fnId;
           var args = opTreeElement.args;

           switch (fnId | 0) {
             case _util.OPS.beginText:
               this.beginText();
               break;

             case _util.OPS.dependency:
               break;

             case _util.OPS.setLeading:
               this.setLeading(args);
               break;

             case _util.OPS.setLeadingMoveText:
               this.setLeadingMoveText(args[0], args[1]);
               break;

             case _util.OPS.setFont:
               this.setFont(args);
               break;

             case _util.OPS.showText:
               this.showText(args[0]);
               break;

             case _util.OPS.showSpacedText:
               this.showText(args[0]);
               break;

             case _util.OPS.endText:
               this.endText();
               break;

             case _util.OPS.moveText:
               this.moveText(args[0], args[1]);
               break;

             case _util.OPS.setCharSpacing:
               this.setCharSpacing(args[0]);
               break;

             case _util.OPS.setWordSpacing:
               this.setWordSpacing(args[0]);
               break;

             case _util.OPS.setHScale:
               this.setHScale(args[0]);
               break;

             case _util.OPS.setTextMatrix:
               this.setTextMatrix(args[0], args[1], args[2], args[3], args[4], args[5]);
               break;

             case _util.OPS.setTextRise:
               this.setTextRise(args[0]);
               break;

             case _util.OPS.setTextRenderingMode:
               this.setTextRenderingMode(args[0]);
               break;

             case _util.OPS.setLineWidth:
               this.setLineWidth(args[0]);
               break;

             case _util.OPS.setLineJoin:
               this.setLineJoin(args[0]);
               break;

             case _util.OPS.setLineCap:
               this.setLineCap(args[0]);
               break;

             case _util.OPS.setMiterLimit:
               this.setMiterLimit(args[0]);
               break;

             case _util.OPS.setFillRGBColor:
               this.setFillRGBColor(args[0], args[1], args[2]);
               break;

             case _util.OPS.setStrokeRGBColor:
               this.setStrokeRGBColor(args[0], args[1], args[2]);
               break;

             case _util.OPS.setStrokeColorN:
               this.setStrokeColorN(args);
               break;

             case _util.OPS.setFillColorN:
               this.setFillColorN(args);
               break;

             case _util.OPS.shadingFill:
               this.shadingFill(args[0]);
               break;

             case _util.OPS.setDash:
               this.setDash(args[0], args[1]);
               break;

             case _util.OPS.setRenderingIntent:
               this.setRenderingIntent(args[0]);
               break;

             case _util.OPS.setFlatness:
               this.setFlatness(args[0]);
               break;

             case _util.OPS.setGState:
               this.setGState(args[0]);
               break;

             case _util.OPS.fill:
               this.fill();
               break;

             case _util.OPS.eoFill:
               this.eoFill();
               break;

             case _util.OPS.stroke:
               this.stroke();
               break;

             case _util.OPS.fillStroke:
               this.fillStroke();
               break;

             case _util.OPS.eoFillStroke:
               this.eoFillStroke();
               break;

             case _util.OPS.clip:
               this.clip('nonzero');
               break;

             case _util.OPS.eoClip:
               this.clip('evenodd');
               break;

             case _util.OPS.paintSolidColorImageMask:
               this.paintSolidColorImageMask();
               break;

             case _util.OPS.paintJpegXObject:
               this.paintJpegXObject(args[0], args[1], args[2]);
               break;

             case _util.OPS.paintImageXObject:
               this.paintImageXObject(args[0]);
               break;

             case _util.OPS.paintInlineImageXObject:
               this.paintInlineImageXObject(args[0]);
               break;

             case _util.OPS.paintImageMaskXObject:
               this.paintImageMaskXObject(args[0]);
               break;

             case _util.OPS.paintFormXObjectBegin:
               this.paintFormXObjectBegin(args[0], args[1]);
               break;

             case _util.OPS.paintFormXObjectEnd:
               this.paintFormXObjectEnd();
               break;

             case _util.OPS.closePath:
               this.closePath();
               break;

             case _util.OPS.closeStroke:
               this.closeStroke();
               break;

             case _util.OPS.closeFillStroke:
               this.closeFillStroke();
               break;

             case _util.OPS.closeEOFillStroke:
               this.closeEOFillStroke();
               break;

             case _util.OPS.nextLine:
               this.nextLine();
               break;

             case _util.OPS.transform:
               this.transform(args[0], args[1], args[2], args[3], args[4], args[5]);
               break;

             case _util.OPS.constructPath:
               this.constructPath(args[0], args[1]);
               break;

             case _util.OPS.endPath:
               this.endPath();
               break;

             case 92:
               this.group(opTreeElement.items);
               break;

             default:
               (0, _util.warn)("Unimplemented operator ".concat(fn));
               break;
           }
         }
       } catch (err) {
         _didIteratorError3 = true;
         _iteratorError3 = err;
       } finally {
         try {
           if (!_iteratorNormalCompletion3 && _iterator3["return"] != null) {
             _iterator3["return"]();
           }
         } finally {
           if (_didIteratorError3) {
             throw _iteratorError3;
           }
         }
       }
     }
   }, {
     key: "setWordSpacing",
     value: function setWordSpacing(wordSpacing) {
       this.current.wordSpacing = wordSpacing;
     }
   }, {
     key: "setCharSpacing",
     value: function setCharSpacing(charSpacing) {
       this.current.charSpacing = charSpacing;
     }
   }, {
     key: "nextLine",
     value: function nextLine() {
       this.moveText(0, this.current.leading);
     }
   }, {
     key: "setTextMatrix",
     value: function setTextMatrix(a, b, c, d, e, f) {
       var current = this.current;
       current.textMatrix = current.lineMatrix = [a, b, c, d, e, f];
       current.textMatrixScale = Math.sqrt(a * a + b * b);
       current.x = current.lineX = 0;
       current.y = current.lineY = 0;
       current.xcoords = [];
       current.tspan = this.svgFactory.createElement('svg:tspan');
       current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
       current.tspan.setAttributeNS(null, 'font-size', "".concat(pf(current.fontSize), "px"));
       current.tspan.setAttributeNS(null, 'y', pf(-current.y));
       current.txtElement = this.svgFactory.createElement('svg:text');
       current.txtElement.appendChild(current.tspan);
     }
   }, {
     key: "beginText",
     value: function beginText() {
       var current = this.current;
       current.x = current.lineX = 0;
       current.y = current.lineY = 0;
       current.textMatrix = _util.IDENTITY_MATRIX;
       current.lineMatrix = _util.IDENTITY_MATRIX;
       current.textMatrixScale = 1;
       current.tspan = this.svgFactory.createElement('svg:tspan');
       current.txtElement = this.svgFactory.createElement('svg:text');
       current.txtgrp = this.svgFactory.createElement('svg:g');
       current.xcoords = [];
     }
   }, {
     key: "moveText",
     value: function moveText(x, y) {
       var current = this.current;
       current.x = current.lineX += x;
       current.y = current.lineY += y;
       current.xcoords = [];
       current.tspan = this.svgFactory.createElement('svg:tspan');
       current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
       current.tspan.setAttributeNS(null, 'font-size', "".concat(pf(current.fontSize), "px"));
       current.tspan.setAttributeNS(null, 'y', pf(-current.y));
     }
   }, {
     key: "showText",
     value: function showText(glyphs) {
       var current = this.current;
       var font = current.font;
       var fontSize = current.fontSize;

       if (fontSize === 0) {
         return;
       }

       var charSpacing = current.charSpacing;
       var wordSpacing = current.wordSpacing;
       var fontDirection = current.fontDirection;
       var textHScale = current.textHScale * fontDirection;
       var vertical = font.vertical;
       var widthAdvanceScale = fontSize * current.fontMatrix[0];
       var x = 0;
       var _iteratorNormalCompletion4 = true;
       var _didIteratorError4 = false;
       var _iteratorError4 = undefined;

       try {
         for (var _iterator4 = glyphs[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
           var glyph = _step4.value;

           if (glyph === null) {
             x += fontDirection * wordSpacing;
             continue;
           } else if ((0, _util.isNum)(glyph)) {
             x += -glyph * fontSize * 0.001;
             continue;
           }

           var width = glyph.width;
           var character = glyph.fontChar;
           var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
           var charWidth = width * widthAdvanceScale + spacing * fontDirection;

           if (!glyph.isInFont && !font.missingFile) {
             x += charWidth;
             continue;
           }

           current.xcoords.push(current.x + x * textHScale);
           current.tspan.textContent += character;
           x += charWidth;
         }
       } catch (err) {
         _didIteratorError4 = true;
         _iteratorError4 = err;
       } finally {
         try {
           if (!_iteratorNormalCompletion4 && _iterator4["return"] != null) {
             _iterator4["return"]();
           }
         } finally {
           if (_didIteratorError4) {
             throw _iteratorError4;
           }
         }
       }

       if (vertical) {
         current.y -= x * textHScale;
       } else {
         current.x += x * textHScale;
       }

       current.tspan.setAttributeNS(null, 'x', current.xcoords.map(pf).join(' '));
       current.tspan.setAttributeNS(null, 'y', pf(-current.y));
       current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
       current.tspan.setAttributeNS(null, 'font-size', "".concat(pf(current.fontSize), "px"));

       if (current.fontStyle !== SVG_DEFAULTS.fontStyle) {
         current.tspan.setAttributeNS(null, 'font-style', current.fontStyle);
       }

       if (current.fontWeight !== SVG_DEFAULTS.fontWeight) {
         current.tspan.setAttributeNS(null, 'font-weight', current.fontWeight);
       }

       var fillStrokeMode = current.textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;

       if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
         if (current.fillColor !== SVG_DEFAULTS.fillColor) {
           current.tspan.setAttributeNS(null, 'fill', current.fillColor);
         }

         if (current.fillAlpha < 1) {
           current.tspan.setAttributeNS(null, 'fill-opacity', current.fillAlpha);
         }
       } else if (current.textRenderingMode === _util.TextRenderingMode.ADD_TO_PATH) {
         current.tspan.setAttributeNS(null, 'fill', 'transparent');
       } else {
         current.tspan.setAttributeNS(null, 'fill', 'none');
       }

       if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
         var lineWidthScale = 1 / (current.textMatrixScale || 1);

         this._setStrokeAttributes(current.tspan, lineWidthScale);
       }

       var textMatrix = current.textMatrix;

       if (current.textRise !== 0) {
         textMatrix = textMatrix.slice();
         textMatrix[5] += current.textRise;
       }

       current.txtElement.setAttributeNS(null, 'transform', "".concat(pm(textMatrix), " scale(1, -1)"));
       current.txtElement.setAttributeNS(XML_NS, 'xml:space', 'preserve');
       current.txtElement.appendChild(current.tspan);
       current.txtgrp.appendChild(current.txtElement);

       this._ensureTransformGroup().appendChild(current.txtElement);
     }
   }, {
     key: "setLeadingMoveText",
     value: function setLeadingMoveText(x, y) {
       this.setLeading(-y);
       this.moveText(x, y);
     }
   }, {
     key: "addFontStyle",
     value: function addFontStyle(fontObj) {
       if (!this.cssStyle) {
         this.cssStyle = this.svgFactory.createElement('svg:style');
         this.cssStyle.setAttributeNS(null, 'type', 'text/css');
         this.defs.appendChild(this.cssStyle);
       }

       var url = (0, _util.createObjectURL)(fontObj.data, fontObj.mimetype, this.forceDataSchema);
       this.cssStyle.textContent += "@font-face { font-family: \"".concat(fontObj.loadedName, "\";") + " src: url(".concat(url, "); }\n");
     }
   }, {
     key: "setFont",
     value: function setFont(details) {
       var current = this.current;
       var fontObj = this.commonObjs.get(details[0]);
       var size = details[1];
       current.font = fontObj;

       if (this.embedFonts && fontObj.data && !this.embeddedFonts[fontObj.loadedName]) {
         this.addFontStyle(fontObj);
         this.embeddedFonts[fontObj.loadedName] = fontObj;
       }

       current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;
       var bold = fontObj.black ? fontObj.bold ? 'bolder' : 'bold' : fontObj.bold ? 'bold' : 'normal';
       var italic = fontObj.italic ? 'italic' : 'normal';

       if (size < 0) {
         size = -size;
         current.fontDirection = -1;
       } else {
         current.fontDirection = 1;
       }

       current.fontSize = size;
       current.fontFamily = fontObj.loadedName;
       current.fontWeight = bold;
       current.fontStyle = italic;
       current.tspan = this.svgFactory.createElement('svg:tspan');
       current.tspan.setAttributeNS(null, 'y', pf(-current.y));
       current.xcoords = [];
     }
   }, {
     key: "endText",
     value: function endText() {
       var current = this.current;

       if (current.textRenderingMode & _util.TextRenderingMode.ADD_TO_PATH_FLAG && current.txtElement && current.txtElement.hasChildNodes()) {
         current.element = current.txtElement;
         this.clip('nonzero');
         this.endPath();
       }
     }
   }, {
     key: "setLineWidth",
     value: function setLineWidth(width) {
       if (width > 0) {
         this.current.lineWidth = width;
       }
     }
   }, {
     key: "setLineCap",
     value: function setLineCap(style) {
       this.current.lineCap = LINE_CAP_STYLES[style];
     }
   }, {
     key: "setLineJoin",
     value: function setLineJoin(style) {
       this.current.lineJoin = LINE_JOIN_STYLES[style];
     }
   }, {
     key: "setMiterLimit",
     value: function setMiterLimit(limit) {
       this.current.miterLimit = limit;
     }
   }, {
     key: "setStrokeAlpha",
     value: function setStrokeAlpha(strokeAlpha) {
       this.current.strokeAlpha = strokeAlpha;
     }
   }, {
     key: "setStrokeRGBColor",
     value: function setStrokeRGBColor(r, g, b) {
       this.current.strokeColor = _util.Util.makeCssRgb(r, g, b);
     }
   }, {
     key: "setFillAlpha",
     value: function setFillAlpha(fillAlpha) {
       this.current.fillAlpha = fillAlpha;
     }
   }, {
     key: "setFillRGBColor",
     value: function setFillRGBColor(r, g, b) {
       this.current.fillColor = _util.Util.makeCssRgb(r, g, b);
       this.current.tspan = this.svgFactory.createElement('svg:tspan');
       this.current.xcoords = [];
     }
   }, {
     key: "setStrokeColorN",
     value: function setStrokeColorN(args) {
       this.current.strokeColor = this._makeColorN_Pattern(args);
     }
   }, {
     key: "setFillColorN",
     value: function setFillColorN(args) {
       this.current.fillColor = this._makeColorN_Pattern(args);
     }
   }, {
     key: "shadingFill",
     value: function shadingFill(args) {
       var width = this.viewport.width;
       var height = this.viewport.height;

       var inv = _util.Util.inverseTransform(this.transformMatrix);

       var bl = _util.Util.applyTransform([0, 0], inv);

       var br = _util.Util.applyTransform([0, height], inv);

       var ul = _util.Util.applyTransform([width, 0], inv);

       var ur = _util.Util.applyTransform([width, height], inv);

       var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
       var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
       var x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
       var y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
       var rect = this.svgFactory.createElement('svg:rect');
       rect.setAttributeNS(null, 'x', x0);
       rect.setAttributeNS(null, 'y', y0);
       rect.setAttributeNS(null, 'width', x1 - x0);
       rect.setAttributeNS(null, 'height', y1 - y0);
       rect.setAttributeNS(null, 'fill', this._makeShadingPattern(args));

       this._ensureTransformGroup().appendChild(rect);
     }
   }, {
     key: "_makeColorN_Pattern",
     value: function _makeColorN_Pattern(args) {
       if (args[0] === 'TilingPattern') {
         return this._makeTilingPattern(args);
       }

       return this._makeShadingPattern(args);
     }
   }, {
     key: "_makeTilingPattern",
     value: function _makeTilingPattern(args) {
       var color = args[1];
       var operatorList = args[2];
       var matrix = args[3] || _util.IDENTITY_MATRIX;

       var _args$ = _slicedToArray(args[4], 4),
           x0 = _args$[0],
           y0 = _args$[1],
           x1 = _args$[2],
           y1 = _args$[3];

       var xstep = args[5];
       var ystep = args[6];
       var paintType = args[7];
       var tilingId = "shading".concat(shadingCount++);

       var _Util$applyTransform = _util.Util.applyTransform([x0, y0], matrix),
           _Util$applyTransform2 = _slicedToArray(_Util$applyTransform, 2),
           tx0 = _Util$applyTransform2[0],
           ty0 = _Util$applyTransform2[1];

       var _Util$applyTransform3 = _util.Util.applyTransform([x1, y1], matrix),
           _Util$applyTransform4 = _slicedToArray(_Util$applyTransform3, 2),
           tx1 = _Util$applyTransform4[0],
           ty1 = _Util$applyTransform4[1];

       var _Util$singularValueDe = _util.Util.singularValueDecompose2dScale(matrix),
           _Util$singularValueDe2 = _slicedToArray(_Util$singularValueDe, 2),
           xscale = _Util$singularValueDe2[0],
           yscale = _Util$singularValueDe2[1];

       var txstep = xstep * xscale;
       var tystep = ystep * yscale;
       var tiling = this.svgFactory.createElement('svg:pattern');
       tiling.setAttributeNS(null, 'id', tilingId);
       tiling.setAttributeNS(null, 'patternUnits', 'userSpaceOnUse');
       tiling.setAttributeNS(null, 'width', txstep);
       tiling.setAttributeNS(null, 'height', tystep);
       tiling.setAttributeNS(null, 'x', "".concat(tx0));
       tiling.setAttributeNS(null, 'y', "".concat(ty0));
       var svg = this.svg;
       var transformMatrix = this.transformMatrix;
       var fillColor = this.current.fillColor;
       var strokeColor = this.current.strokeColor;
       var bbox = this.svgFactory.create(tx1 - tx0, ty1 - ty0);
       this.svg = bbox;
       this.transformMatrix = matrix;

       if (paintType === 2) {
         var cssColor = _util.Util.makeCssRgb.apply(_util.Util, _toConsumableArray(color));

         this.current.fillColor = cssColor;
         this.current.strokeColor = cssColor;
       }

       this.executeOpTree(this.convertOpList(operatorList));
       this.svg = svg;
       this.transformMatrix = transformMatrix;
       this.current.fillColor = fillColor;
       this.current.strokeColor = strokeColor;
       tiling.appendChild(bbox.childNodes[0]);
       this.defs.appendChild(tiling);
       return "url(#".concat(tilingId, ")");
     }
   }, {
     key: "_makeShadingPattern",
     value: function _makeShadingPattern(args) {
       switch (args[0]) {
         case 'RadialAxial':
           var shadingId = "shading".concat(shadingCount++);
           var colorStops = args[2];
           var gradient;

           switch (args[1]) {
             case 'axial':
               var point0 = args[3];
               var point1 = args[4];
               gradient = this.svgFactory.createElement('svg:linearGradient');
               gradient.setAttributeNS(null, 'id', shadingId);
               gradient.setAttributeNS(null, 'gradientUnits', 'userSpaceOnUse');
               gradient.setAttributeNS(null, 'x1', point0[0]);
               gradient.setAttributeNS(null, 'y1', point0[1]);
               gradient.setAttributeNS(null, 'x2', point1[0]);
               gradient.setAttributeNS(null, 'y2', point1[1]);
               break;

             case 'radial':
               var focalPoint = args[3];
               var circlePoint = args[4];
               var focalRadius = args[5];
               var circleRadius = args[6];
               gradient = this.svgFactory.createElement('svg:radialGradient');
               gradient.setAttributeNS(null, 'id', shadingId);
               gradient.setAttributeNS(null, 'gradientUnits', 'userSpaceOnUse');
               gradient.setAttributeNS(null, 'cx', circlePoint[0]);
               gradient.setAttributeNS(null, 'cy', circlePoint[1]);
               gradient.setAttributeNS(null, 'r', circleRadius);
               gradient.setAttributeNS(null, 'fx', focalPoint[0]);
               gradient.setAttributeNS(null, 'fy', focalPoint[1]);
               gradient.setAttributeNS(null, 'fr', focalRadius);
               break;

             default:
               throw new Error("Unknown RadialAxial type: ".concat(args[1]));
           }

           var _iteratorNormalCompletion5 = true;
           var _didIteratorError5 = false;
           var _iteratorError5 = undefined;

           try {
             for (var _iterator5 = colorStops[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
               var colorStop = _step5.value;
               var stop = this.svgFactory.createElement('svg:stop');
               stop.setAttributeNS(null, 'offset', colorStop[0]);
               stop.setAttributeNS(null, 'stop-color', colorStop[1]);
               gradient.appendChild(stop);
             }
           } catch (err) {
             _didIteratorError5 = true;
             _iteratorError5 = err;
           } finally {
             try {
               if (!_iteratorNormalCompletion5 && _iterator5["return"] != null) {
                 _iterator5["return"]();
               }
             } finally {
               if (_didIteratorError5) {
                 throw _iteratorError5;
               }
             }
           }

           this.defs.appendChild(gradient);
           return "url(#".concat(shadingId, ")");

         case 'Mesh':
           (0, _util.warn)('Unimplemented pattern Mesh');
           return null;

         case 'Dummy':
           return 'hotpink';

         default:
           throw new Error("Unknown IR type: ".concat(args[0]));
       }
     }
   }, {
     key: "setDash",
     value: function setDash(dashArray, dashPhase) {
       this.current.dashArray = dashArray;
       this.current.dashPhase = dashPhase;
     }
   }, {
     key: "constructPath",
     value: function constructPath(ops, args) {
       var current = this.current;
       var x = current.x,
           y = current.y;
       var d = [];
       var j = 0;
       var _iteratorNormalCompletion6 = true;
       var _didIteratorError6 = false;
       var _iteratorError6 = undefined;

       try {
         for (var _iterator6 = ops[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
           var op = _step6.value;

           switch (op | 0) {
             case _util.OPS.rectangle:
               x = args[j++];
               y = args[j++];
               var width = args[j++];
               var height = args[j++];
               var xw = x + width;
               var yh = y + height;
               d.push('M', pf(x), pf(y), 'L', pf(xw), pf(y), 'L', pf(xw), pf(yh), 'L', pf(x), pf(yh), 'Z');
               break;

             case _util.OPS.moveTo:
               x = args[j++];
               y = args[j++];
               d.push('M', pf(x), pf(y));
               break;

             case _util.OPS.lineTo:
               x = args[j++];
               y = args[j++];
               d.push('L', pf(x), pf(y));
               break;

             case _util.OPS.curveTo:
               x = args[j + 4];
               y = args[j + 5];
               d.push('C', pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]), pf(x), pf(y));
               j += 6;
               break;

             case _util.OPS.curveTo2:
               x = args[j + 2];
               y = args[j + 3];
               d.push('C', pf(x), pf(y), pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]));
               j += 4;
               break;

             case _util.OPS.curveTo3:
               x = args[j + 2];
               y = args[j + 3];
               d.push('C', pf(args[j]), pf(args[j + 1]), pf(x), pf(y), pf(x), pf(y));
               j += 4;
               break;

             case _util.OPS.closePath:
               d.push('Z');
               break;
           }
         }
       } catch (err) {
         _didIteratorError6 = true;
         _iteratorError6 = err;
       } finally {
         try {
           if (!_iteratorNormalCompletion6 && _iterator6["return"] != null) {
             _iterator6["return"]();
           }
         } finally {
           if (_didIteratorError6) {
             throw _iteratorError6;
           }
         }
       }

       d = d.join(' ');

       if (current.path && ops.length > 0 && ops[0] !== _util.OPS.rectangle && ops[0] !== _util.OPS.moveTo) {
         d = current.path.getAttributeNS(null, 'd') + d;
       } else {
         current.path = this.svgFactory.createElement('svg:path');

         this._ensureTransformGroup().appendChild(current.path);
       }

       current.path.setAttributeNS(null, 'd', d);
       current.path.setAttributeNS(null, 'fill', 'none');
       current.element = current.path;
       current.setCurrentPoint(x, y);
     }
   }, {
     key: "endPath",
     value: function endPath() {
       var current = this.current;
       current.path = null;

       if (!this.pendingClip) {
         return;
       }

       if (!current.element) {
         this.pendingClip = null;
         return;
       }

       var clipId = "clippath".concat(clipCount++);
       var clipPath = this.svgFactory.createElement('svg:clipPath');
       clipPath.setAttributeNS(null, 'id', clipId);
       clipPath.setAttributeNS(null, 'transform', pm(this.transformMatrix));
       var clipElement = current.element.cloneNode(true);

       if (this.pendingClip === 'evenodd') {
         clipElement.setAttributeNS(null, 'clip-rule', 'evenodd');
       } else {
         clipElement.setAttributeNS(null, 'clip-rule', 'nonzero');
       }

       this.pendingClip = null;
       clipPath.appendChild(clipElement);
       this.defs.appendChild(clipPath);

       if (current.activeClipUrl) {
         current.clipGroup = null;
         this.extraStack.forEach(function (prev) {
           prev.clipGroup = null;
         });
         clipPath.setAttributeNS(null, 'clip-path', current.activeClipUrl);
       }

       current.activeClipUrl = "url(#".concat(clipId, ")");
       this.tgrp = null;
     }
   }, {
     key: "clip",
     value: function clip(type) {
       this.pendingClip = type;
     }
   }, {
     key: "closePath",
     value: function closePath() {
       var current = this.current;

       if (current.path) {
         var d = "".concat(current.path.getAttributeNS(null, 'd'), "Z");
         current.path.setAttributeNS(null, 'd', d);
       }
     }
   }, {
     key: "setLeading",
     value: function setLeading(leading) {
       this.current.leading = -leading;
     }
   }, {
     key: "setTextRise",
     value: function setTextRise(textRise) {
       this.current.textRise = textRise;
     }
   }, {
     key: "setTextRenderingMode",
     value: function setTextRenderingMode(textRenderingMode) {
       this.current.textRenderingMode = textRenderingMode;
     }
   }, {
     key: "setHScale",
     value: function setHScale(scale) {
       this.current.textHScale = scale / 100;
     }
   }, {
     key: "setRenderingIntent",
     value: function setRenderingIntent(intent) {}
   }, {
     key: "setFlatness",
     value: function setFlatness(flatness) {}
   }, {
     key: "setGState",
     value: function setGState(states) {
       var _iteratorNormalCompletion7 = true;
       var _didIteratorError7 = false;
       var _iteratorError7 = undefined;

       try {
         for (var _iterator7 = states[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
           var _step7$value = _slicedToArray(_step7.value, 2),
               key = _step7$value[0],
               value = _step7$value[1];

           switch (key) {
             case 'LW':
               this.setLineWidth(value);
               break;

             case 'LC':
               this.setLineCap(value);
               break;

             case 'LJ':
               this.setLineJoin(value);
               break;

             case 'ML':
               this.setMiterLimit(value);
               break;

             case 'D':
               this.setDash(value[0], value[1]);
               break;

             case 'RI':
               this.setRenderingIntent(value);
               break;

             case 'FL':
               this.setFlatness(value);
               break;

             case 'Font':
               this.setFont(value);
               break;

             case 'CA':
               this.setStrokeAlpha(value);
               break;

             case 'ca':
               this.setFillAlpha(value);
               break;

             default:
               (0, _util.warn)("Unimplemented graphic state operator ".concat(key));
               break;
           }
         }
       } catch (err) {
         _didIteratorError7 = true;
         _iteratorError7 = err;
       } finally {
         try {
           if (!_iteratorNormalCompletion7 && _iterator7["return"] != null) {
             _iterator7["return"]();
           }
         } finally {
           if (_didIteratorError7) {
             throw _iteratorError7;
           }
         }
       }
     }
   }, {
     key: "fill",
     value: function fill() {
       var current = this.current;

       if (current.element) {
         current.element.setAttributeNS(null, 'fill', current.fillColor);
         current.element.setAttributeNS(null, 'fill-opacity', current.fillAlpha);
         this.endPath();
       }
     }
   }, {
     key: "stroke",
     value: function stroke() {
       var current = this.current;

       if (current.element) {
         this._setStrokeAttributes(current.element);

         current.element.setAttributeNS(null, 'fill', 'none');
         this.endPath();
       }
     }
   }, {
     key: "_setStrokeAttributes",
     value: function _setStrokeAttributes(element) {
       var lineWidthScale = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
       var current = this.current;
       var dashArray = current.dashArray;

       if (lineWidthScale !== 1 && dashArray.length > 0) {
         dashArray = dashArray.map(function (value) {
           return lineWidthScale * value;
         });
       }

       element.setAttributeNS(null, 'stroke', current.strokeColor);
       element.setAttributeNS(null, 'stroke-opacity', current.strokeAlpha);
       element.setAttributeNS(null, 'stroke-miterlimit', pf(current.miterLimit));
       element.setAttributeNS(null, 'stroke-linecap', current.lineCap);
       element.setAttributeNS(null, 'stroke-linejoin', current.lineJoin);
       element.setAttributeNS(null, 'stroke-width', pf(lineWidthScale * current.lineWidth) + 'px');
       element.setAttributeNS(null, 'stroke-dasharray', dashArray.map(pf).join(' '));
       element.setAttributeNS(null, 'stroke-dashoffset', pf(lineWidthScale * current.dashPhase) + 'px');
     }
   }, {
     key: "eoFill",
     value: function eoFill() {
       if (this.current.element) {
         this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
       }

       this.fill();
     }
   }, {
     key: "fillStroke",
     value: function fillStroke() {
       this.stroke();
       this.fill();
     }
   }, {
     key: "eoFillStroke",
     value: function eoFillStroke() {
       if (this.current.element) {
         this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
       }

       this.fillStroke();
     }
   }, {
     key: "closeStroke",
     value: function closeStroke() {
       this.closePath();
       this.stroke();
     }
   }, {
     key: "closeFillStroke",
     value: function closeFillStroke() {
       this.closePath();
       this.fillStroke();
     }
   }, {
     key: "closeEOFillStroke",
     value: function closeEOFillStroke() {
       this.closePath();
       this.eoFillStroke();
     }
   }, {
     key: "paintSolidColorImageMask",
     value: function paintSolidColorImageMask() {
       var rect = this.svgFactory.createElement('svg:rect');
       rect.setAttributeNS(null, 'x', '0');
       rect.setAttributeNS(null, 'y', '0');
       rect.setAttributeNS(null, 'width', '1px');
       rect.setAttributeNS(null, 'height', '1px');
       rect.setAttributeNS(null, 'fill', this.current.fillColor);

       this._ensureTransformGroup().appendChild(rect);
     }
   }, {
     key: "paintJpegXObject",
     value: function paintJpegXObject(objId, w, h) {
       var imgObj = this.objs.get(objId);
       var imgEl = this.svgFactory.createElement('svg:image');
       imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgObj.src);
       imgEl.setAttributeNS(null, 'width', pf(w));
       imgEl.setAttributeNS(null, 'height', pf(h));
       imgEl.setAttributeNS(null, 'x', '0');
       imgEl.setAttributeNS(null, 'y', pf(-h));
       imgEl.setAttributeNS(null, 'transform', "scale(".concat(pf(1 / w), " ").concat(pf(-1 / h), ")"));

       this._ensureTransformGroup().appendChild(imgEl);
     }
   }, {
     key: "paintImageXObject",
     value: function paintImageXObject(objId) {
       var imgData = this.objs.get(objId);

       if (!imgData) {
         (0, _util.warn)("Dependent image with object ID ".concat(objId, " is not ready yet"));
         return;
       }

       this.paintInlineImageXObject(imgData);
     }
   }, {
     key: "paintInlineImageXObject",
     value: function paintInlineImageXObject(imgData, mask) {
       var width = imgData.width;
       var height = imgData.height;
       var imgSrc = convertImgDataToPng(imgData, this.forceDataSchema, !!mask);
       var cliprect = this.svgFactory.createElement('svg:rect');
       cliprect.setAttributeNS(null, 'x', '0');
       cliprect.setAttributeNS(null, 'y', '0');
       cliprect.setAttributeNS(null, 'width', pf(width));
       cliprect.setAttributeNS(null, 'height', pf(height));
       this.current.element = cliprect;
       this.clip('nonzero');
       var imgEl = this.svgFactory.createElement('svg:image');
       imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgSrc);
       imgEl.setAttributeNS(null, 'x', '0');
       imgEl.setAttributeNS(null, 'y', pf(-height));
       imgEl.setAttributeNS(null, 'width', pf(width) + 'px');
       imgEl.setAttributeNS(null, 'height', pf(height) + 'px');
       imgEl.setAttributeNS(null, 'transform', "scale(".concat(pf(1 / width), " ").concat(pf(-1 / height), ")"));

       if (mask) {
         mask.appendChild(imgEl);
       } else {
         this._ensureTransformGroup().appendChild(imgEl);
       }
     }
   }, {
     key: "paintImageMaskXObject",
     value: function paintImageMaskXObject(imgData) {
       var current = this.current;
       var width = imgData.width;
       var height = imgData.height;
       var fillColor = current.fillColor;
       current.maskId = "mask".concat(maskCount++);
       var mask = this.svgFactory.createElement('svg:mask');
       mask.setAttributeNS(null, 'id', current.maskId);
       var rect = this.svgFactory.createElement('svg:rect');
       rect.setAttributeNS(null, 'x', '0');
       rect.setAttributeNS(null, 'y', '0');
       rect.setAttributeNS(null, 'width', pf(width));
       rect.setAttributeNS(null, 'height', pf(height));
       rect.setAttributeNS(null, 'fill', fillColor);
       rect.setAttributeNS(null, 'mask', "url(#".concat(current.maskId, ")"));
       this.defs.appendChild(mask);

       this._ensureTransformGroup().appendChild(rect);

       this.paintInlineImageXObject(imgData, mask);
     }
   }, {
     key: "paintFormXObjectBegin",
     value: function paintFormXObjectBegin(matrix, bbox) {
       if (Array.isArray(matrix) && matrix.length === 6) {
         this.transform(matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
       }

       if (bbox) {
         var width = bbox[2] - bbox[0];
         var height = bbox[3] - bbox[1];
         var cliprect = this.svgFactory.createElement('svg:rect');
         cliprect.setAttributeNS(null, 'x', bbox[0]);
         cliprect.setAttributeNS(null, 'y', bbox[1]);
         cliprect.setAttributeNS(null, 'width', pf(width));
         cliprect.setAttributeNS(null, 'height', pf(height));
         this.current.element = cliprect;
         this.clip('nonzero');
         this.endPath();
       }
     }
   }, {
     key: "paintFormXObjectEnd",
     value: function paintFormXObjectEnd() {}
   }, {
     key: "_initialize",
     value: function _initialize(viewport) {
       var svg = this.svgFactory.create(viewport.width, viewport.height);
       var definitions = this.svgFactory.createElement('svg:defs');
       svg.appendChild(definitions);
       this.defs = definitions;
       var rootGroup = this.svgFactory.createElement('svg:g');
       rootGroup.setAttributeNS(null, 'transform', pm(viewport.transform));
       svg.appendChild(rootGroup);
       this.svg = rootGroup;
       return svg;
     }
   }, {
     key: "_ensureClipGroup",
     value: function _ensureClipGroup() {
       if (!this.current.clipGroup) {
         var clipGroup = this.svgFactory.createElement('svg:g');
         clipGroup.setAttributeNS(null, 'clip-path', this.current.activeClipUrl);
         this.svg.appendChild(clipGroup);
         this.current.clipGroup = clipGroup;
       }

       return this.current.clipGroup;
     }
   }, {
     key: "_ensureTransformGroup",
     value: function _ensureTransformGroup() {
       if (!this.tgrp) {
         this.tgrp = this.svgFactory.createElement('svg:g');
         this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));

         if (this.current.activeClipUrl) {
           this._ensureClipGroup().appendChild(this.tgrp);
         } else {
           this.svg.appendChild(this.tgrp);
         }
       }

       return this.tgrp;
     }
   }]);

   return SVGGraphics;
 }();
}

/***/ }),
/* 165 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.PDFNodeStream = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

var _network_utils = __w_pdfjs_require__(166);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var fs = require('fs');

var http = require('http');

var https = require('https');

var url = require('url');

var fileUriRegex = /^file:\/\/\/[a-zA-Z]:\//;

function parseUrl(sourceUrl) {
 var parsedUrl = url.parse(sourceUrl);

 if (parsedUrl.protocol === 'file:' || parsedUrl.host) {
   return parsedUrl;
 }

 if (/^[a-z]:[/\\]/i.test(sourceUrl)) {
   return url.parse("file:///".concat(sourceUrl));
 }

 if (!parsedUrl.host) {
   parsedUrl.protocol = 'file:';
 }

 return parsedUrl;
}

var PDFNodeStream =
/*#__PURE__*/
function () {
 function PDFNodeStream(source) {
   _classCallCheck(this, PDFNodeStream);

   this.source = source;
   this.url = parseUrl(source.url);
   this.isHttp = this.url.protocol === 'http:' || this.url.protocol === 'https:';
   this.isFsUrl = this.url.protocol === 'file:';
   this.httpHeaders = this.isHttp && source.httpHeaders || {};
   this._fullRequestReader = null;
   this._rangeRequestReaders = [];
 }

 _createClass(PDFNodeStream, [{
   key: "getFullReader",
   value: function getFullReader() {
     (0, _util.assert)(!this._fullRequestReader);
     this._fullRequestReader = this.isFsUrl ? new PDFNodeStreamFsFullReader(this) : new PDFNodeStreamFullReader(this);
     return this._fullRequestReader;
   }
 }, {
   key: "getRangeReader",
   value: function getRangeReader(start, end) {
     if (end <= this._progressiveDataLength) {
       return null;
     }

     var rangeReader = this.isFsUrl ? new PDFNodeStreamFsRangeReader(this, start, end) : new PDFNodeStreamRangeReader(this, start, end);

     this._rangeRequestReaders.push(rangeReader);

     return rangeReader;
   }
 }, {
   key: "cancelAllRequests",
   value: function cancelAllRequests(reason) {
     if (this._fullRequestReader) {
       this._fullRequestReader.cancel(reason);
     }

     var readers = this._rangeRequestReaders.slice(0);

     readers.forEach(function (reader) {
       reader.cancel(reason);
     });
   }
 }, {
   key: "_progressiveDataLength",
   get: function get() {
     return this._fullRequestReader ? this._fullRequestReader._loaded : 0;
   }
 }]);

 return PDFNodeStream;
}();

exports.PDFNodeStream = PDFNodeStream;

var BaseFullReader =
/*#__PURE__*/
function () {
 function BaseFullReader(stream) {
   _classCallCheck(this, BaseFullReader);

   this._url = stream.url;
   this._done = false;
   this._storedError = null;
   this.onProgress = null;
   var source = stream.source;
   this._contentLength = source.length;
   this._loaded = 0;
   this._filename = null;
   this._disableRange = source.disableRange || false;
   this._rangeChunkSize = source.rangeChunkSize;

   if (!this._rangeChunkSize && !this._disableRange) {
     this._disableRange = true;
   }

   this._isStreamingSupported = !source.disableStream;
   this._isRangeSupported = !source.disableRange;
   this._readableStream = null;
   this._readCapability = (0, _util.createPromiseCapability)();
   this._headersCapability = (0, _util.createPromiseCapability)();
 }

 _createClass(BaseFullReader, [{
   key: "read",
   value: function () {
     var _read = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee() {
       var chunk, buffer;
       return _regenerator["default"].wrap(function _callee$(_context) {
         while (1) {
           switch (_context.prev = _context.next) {
             case 0:
               _context.next = 2;
               return this._readCapability.promise;

             case 2:
               if (!this._done) {
                 _context.next = 4;
                 break;
               }

               return _context.abrupt("return", {
                 value: undefined,
                 done: true
               });

             case 4:
               if (!this._storedError) {
                 _context.next = 6;
                 break;
               }

               throw this._storedError;

             case 6:
               chunk = this._readableStream.read();

               if (!(chunk === null)) {
                 _context.next = 10;
                 break;
               }

               this._readCapability = (0, _util.createPromiseCapability)();
               return _context.abrupt("return", this.read());

             case 10:
               this._loaded += chunk.length;

               if (this.onProgress) {
                 this.onProgress({
                   loaded: this._loaded,
                   total: this._contentLength
                 });
               }

               buffer = new Uint8Array(chunk).buffer;
               return _context.abrupt("return", {
                 value: buffer,
                 done: false
               });

             case 14:
             case "end":
               return _context.stop();
           }
         }
       }, _callee, this);
     }));

     function read() {
       return _read.apply(this, arguments);
     }

     return read;
   }()
 }, {
   key: "cancel",
   value: function cancel(reason) {
     if (!this._readableStream) {
       this._error(reason);

       return;
     }

     this._readableStream.destroy(reason);
   }
 }, {
   key: "_error",
   value: function _error(reason) {
     this._storedError = reason;

     this._readCapability.resolve();
   }
 }, {
   key: "_setReadableStream",
   value: function _setReadableStream(readableStream) {
     var _this = this;

     this._readableStream = readableStream;
     readableStream.on('readable', function () {
       _this._readCapability.resolve();
     });
     readableStream.on('end', function () {
       readableStream.destroy();
       _this._done = true;

       _this._readCapability.resolve();
     });
     readableStream.on('error', function (reason) {
       _this._error(reason);
     });

     if (!this._isStreamingSupported && this._isRangeSupported) {
       this._error(new _util.AbortException('streaming is disabled'));
     }

     if (this._storedError) {
       this._readableStream.destroy(this._storedError);
     }
   }
 }, {
   key: "headersReady",
   get: function get() {
     return this._headersCapability.promise;
   }
 }, {
   key: "filename",
   get: function get() {
     return this._filename;
   }
 }, {
   key: "contentLength",
   get: function get() {
     return this._contentLength;
   }
 }, {
   key: "isRangeSupported",
   get: function get() {
     return this._isRangeSupported;
   }
 }, {
   key: "isStreamingSupported",
   get: function get() {
     return this._isStreamingSupported;
   }
 }]);

 return BaseFullReader;
}();

var BaseRangeReader =
/*#__PURE__*/
function () {
 function BaseRangeReader(stream) {
   _classCallCheck(this, BaseRangeReader);

   this._url = stream.url;
   this._done = false;
   this._storedError = null;
   this.onProgress = null;
   this._loaded = 0;
   this._readableStream = null;
   this._readCapability = (0, _util.createPromiseCapability)();
   var source = stream.source;
   this._isStreamingSupported = !source.disableStream;
 }

 _createClass(BaseRangeReader, [{
   key: "read",
   value: function () {
     var _read2 = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee2() {
       var chunk, buffer;
       return _regenerator["default"].wrap(function _callee2$(_context2) {
         while (1) {
           switch (_context2.prev = _context2.next) {
             case 0:
               _context2.next = 2;
               return this._readCapability.promise;

             case 2:
               if (!this._done) {
                 _context2.next = 4;
                 break;
               }

               return _context2.abrupt("return", {
                 value: undefined,
                 done: true
               });

             case 4:
               if (!this._storedError) {
                 _context2.next = 6;
                 break;
               }

               throw this._storedError;

             case 6:
               chunk = this._readableStream.read();

               if (!(chunk === null)) {
                 _context2.next = 10;
                 break;
               }

               this._readCapability = (0, _util.createPromiseCapability)();
               return _context2.abrupt("return", this.read());

             case 10:
               this._loaded += chunk.length;

               if (this.onProgress) {
                 this.onProgress({
                   loaded: this._loaded
                 });
               }

               buffer = new Uint8Array(chunk).buffer;
               return _context2.abrupt("return", {
                 value: buffer,
                 done: false
               });

             case 14:
             case "end":
               return _context2.stop();
           }
         }
       }, _callee2, this);
     }));

     function read() {
       return _read2.apply(this, arguments);
     }

     return read;
   }()
 }, {
   key: "cancel",
   value: function cancel(reason) {
     if (!this._readableStream) {
       this._error(reason);

       return;
     }

     this._readableStream.destroy(reason);
   }
 }, {
   key: "_error",
   value: function _error(reason) {
     this._storedError = reason;

     this._readCapability.resolve();
   }
 }, {
   key: "_setReadableStream",
   value: function _setReadableStream(readableStream) {
     var _this2 = this;

     this._readableStream = readableStream;
     readableStream.on('readable', function () {
       _this2._readCapability.resolve();
     });
     readableStream.on('end', function () {
       readableStream.destroy();
       _this2._done = true;

       _this2._readCapability.resolve();
     });
     readableStream.on('error', function (reason) {
       _this2._error(reason);
     });

     if (this._storedError) {
       this._readableStream.destroy(this._storedError);
     }
   }
 }, {
   key: "isStreamingSupported",
   get: function get() {
     return this._isStreamingSupported;
   }
 }]);

 return BaseRangeReader;
}();

function createRequestOptions(url, headers) {
 return {
   protocol: url.protocol,
   auth: url.auth,
   host: url.hostname,
   port: url.port,
   path: url.path,
   method: 'GET',
   headers: headers
 };
}

var PDFNodeStreamFullReader =
/*#__PURE__*/
function (_BaseFullReader) {
 _inherits(PDFNodeStreamFullReader, _BaseFullReader);

 function PDFNodeStreamFullReader(stream) {
   var _this3;

   _classCallCheck(this, PDFNodeStreamFullReader);

   _this3 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamFullReader).call(this, stream));

   var handleResponse = function handleResponse(response) {
     if (response.statusCode === 404) {
       var error = new _util.MissingPDFException("Missing PDF \"".concat(_this3._url, "\"."));
       _this3._storedError = error;

       _this3._headersCapability.reject(error);

       return;
     }

     _this3._headersCapability.resolve();

     _this3._setReadableStream(response);

     var getResponseHeader = function getResponseHeader(name) {
       return _this3._readableStream.headers[name.toLowerCase()];
     };

     var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({
       getResponseHeader: getResponseHeader,
       isHttp: stream.isHttp,
       rangeChunkSize: _this3._rangeChunkSize,
       disableRange: _this3._disableRange
     }),
         allowRangeRequests = _validateRangeRequest.allowRangeRequests,
         suggestedLength = _validateRangeRequest.suggestedLength;

     _this3._isRangeSupported = allowRangeRequests;
     _this3._contentLength = suggestedLength || _this3._contentLength;
     _this3._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);
   };

   _this3._request = null;

   if (_this3._url.protocol === 'http:') {
     _this3._request = http.request(createRequestOptions(_this3._url, stream.httpHeaders), handleResponse);
   } else {
     _this3._request = https.request(createRequestOptions(_this3._url, stream.httpHeaders), handleResponse);
   }

   _this3._request.on('error', function (reason) {
     _this3._storedError = reason;

     _this3._headersCapability.reject(reason);
   });

   _this3._request.end();

   return _this3;
 }

 return PDFNodeStreamFullReader;
}(BaseFullReader);

var PDFNodeStreamRangeReader =
/*#__PURE__*/
function (_BaseRangeReader) {
 _inherits(PDFNodeStreamRangeReader, _BaseRangeReader);

 function PDFNodeStreamRangeReader(stream, start, end) {
   var _this4;

   _classCallCheck(this, PDFNodeStreamRangeReader);

   _this4 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamRangeReader).call(this, stream));
   _this4._httpHeaders = {};

   for (var property in stream.httpHeaders) {
     var value = stream.httpHeaders[property];

     if (typeof value === 'undefined') {
       continue;
     }

     _this4._httpHeaders[property] = value;
   }

   _this4._httpHeaders['Range'] = "bytes=".concat(start, "-").concat(end - 1);

   var handleResponse = function handleResponse(response) {
     if (response.statusCode === 404) {
       var error = new _util.MissingPDFException("Missing PDF \"".concat(_this4._url, "\"."));
       _this4._storedError = error;
       return;
     }

     _this4._setReadableStream(response);
   };

   _this4._request = null;

   if (_this4._url.protocol === 'http:') {
     _this4._request = http.request(createRequestOptions(_this4._url, _this4._httpHeaders), handleResponse);
   } else {
     _this4._request = https.request(createRequestOptions(_this4._url, _this4._httpHeaders), handleResponse);
   }

   _this4._request.on('error', function (reason) {
     _this4._storedError = reason;
   });

   _this4._request.end();

   return _this4;
 }

 return PDFNodeStreamRangeReader;
}(BaseRangeReader);

var PDFNodeStreamFsFullReader =
/*#__PURE__*/
function (_BaseFullReader2) {
 _inherits(PDFNodeStreamFsFullReader, _BaseFullReader2);

 function PDFNodeStreamFsFullReader(stream) {
   var _this5;

   _classCallCheck(this, PDFNodeStreamFsFullReader);

   _this5 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamFsFullReader).call(this, stream));
   var path = decodeURIComponent(_this5._url.path);

   if (fileUriRegex.test(_this5._url.href)) {
     path = path.replace(/^\//, '');
   }

   fs.lstat(path, function (error, stat) {
     if (error) {
       if (error.code === 'ENOENT') {
         error = new _util.MissingPDFException("Missing PDF \"".concat(path, "\"."));
       }

       _this5._storedError = error;

       _this5._headersCapability.reject(error);

       return;
     }

     _this5._contentLength = stat.size;

     _this5._setReadableStream(fs.createReadStream(path));

     _this5._headersCapability.resolve();
   });
   return _this5;
 }

 return PDFNodeStreamFsFullReader;
}(BaseFullReader);

var PDFNodeStreamFsRangeReader =
/*#__PURE__*/
function (_BaseRangeReader2) {
 _inherits(PDFNodeStreamFsRangeReader, _BaseRangeReader2);

 function PDFNodeStreamFsRangeReader(stream, start, end) {
   var _this6;

   _classCallCheck(this, PDFNodeStreamFsRangeReader);

   _this6 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamFsRangeReader).call(this, stream));
   var path = decodeURIComponent(_this6._url.path);

   if (fileUriRegex.test(_this6._url.href)) {
     path = path.replace(/^\//, '');
   }

   _this6._setReadableStream(fs.createReadStream(path, {
     start: start,
     end: end - 1
   }));

   return _this6;
 }

 return PDFNodeStreamFsRangeReader;
}(BaseRangeReader);

/***/ }),
/* 166 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.createResponseStatusError = createResponseStatusError;
exports.extractFilenameFromHeader = extractFilenameFromHeader;
exports.validateRangeRequestCapabilities = validateRangeRequestCapabilities;
exports.validateResponseStatus = validateResponseStatus;

var _util = __w_pdfjs_require__(1);

var _content_disposition = __w_pdfjs_require__(167);

function validateRangeRequestCapabilities(_ref) {
 var getResponseHeader = _ref.getResponseHeader,
     isHttp = _ref.isHttp,
     rangeChunkSize = _ref.rangeChunkSize,
     disableRange = _ref.disableRange;
 (0, _util.assert)(rangeChunkSize > 0, 'Range chunk size must be larger than zero');
 var returnValues = {
   allowRangeRequests: false,
   suggestedLength: undefined
 };
 var length = parseInt(getResponseHeader('Content-Length'), 10);

 if (!Number.isInteger(length)) {
   return returnValues;
 }

 returnValues.suggestedLength = length;

 if (length <= 2 * rangeChunkSize) {
   return returnValues;
 }

 if (disableRange || !isHttp) {
   return returnValues;
 }

 if (getResponseHeader('Accept-Ranges') !== 'bytes') {
   return returnValues;
 }

 var contentEncoding = getResponseHeader('Content-Encoding') || 'identity';

 if (contentEncoding !== 'identity') {
   return returnValues;
 }

 returnValues.allowRangeRequests = true;
 return returnValues;
}

function extractFilenameFromHeader(getResponseHeader) {
 var contentDisposition = getResponseHeader('Content-Disposition');

 if (contentDisposition) {
   var filename = (0, _content_disposition.getFilenameFromContentDispositionHeader)(contentDisposition);

   if (/\.pdf$/i.test(filename)) {
     return filename;
   }
 }

 return null;
}

function createResponseStatusError(status, url) {
 if (status === 404 || status === 0 && /^file:/.test(url)) {
   return new _util.MissingPDFException('Missing PDF "' + url + '".');
 }

 return new _util.UnexpectedResponseException('Unexpected server response (' + status + ') while retrieving PDF "' + url + '".', status);
}

function validateResponseStatus(status) {
 return status === 200 || status === 206;
}

/***/ }),
/* 167 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.getFilenameFromContentDispositionHeader = getFilenameFromContentDispositionHeader;

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function getFilenameFromContentDispositionHeader(contentDisposition) {
 var needsEncodingFixup = true;
 var tmp = toParamRegExp('filename\\*', 'i').exec(contentDisposition);

 if (tmp) {
   tmp = tmp[1];
   var filename = rfc2616unquote(tmp);
   filename = unescape(filename);
   filename = rfc5987decode(filename);
   filename = rfc2047decode(filename);
   return fixupEncoding(filename);
 }

 tmp = rfc2231getparam(contentDisposition);

 if (tmp) {
   var _filename = rfc2047decode(tmp);

   return fixupEncoding(_filename);
 }

 tmp = toParamRegExp('filename', 'i').exec(contentDisposition);

 if (tmp) {
   tmp = tmp[1];

   var _filename2 = rfc2616unquote(tmp);

   _filename2 = rfc2047decode(_filename2);
   return fixupEncoding(_filename2);
 }

 function toParamRegExp(attributePattern, flags) {
   return new RegExp('(?:^|;)\\s*' + attributePattern + '\\s*=\\s*' + '(' + '[^";\\s][^;\\s]*' + '|' + '"(?:[^"\\\\]|\\\\"?)+"?' + ')', flags);
 }

 function textdecode(encoding, value) {
   if (encoding) {
     if (!/^[\x00-\xFF]+$/.test(value)) {
       return value;
     }

     try {
       var decoder = new TextDecoder(encoding, {
         fatal: true
       });
       var bytes = Array.from(value, function (ch) {
         return ch.charCodeAt(0) & 0xFF;
       });
       value = decoder.decode(new Uint8Array(bytes));
       needsEncodingFixup = false;
     } catch (e) {
       if (/^utf-?8$/i.test(encoding)) {
         try {
           value = decodeURIComponent(escape(value));
           needsEncodingFixup = false;
         } catch (err) {}
       }
     }
   }

   return value;
 }

 function fixupEncoding(value) {
   if (needsEncodingFixup && /[\x80-\xff]/.test(value)) {
     value = textdecode('utf-8', value);

     if (needsEncodingFixup) {
       value = textdecode('iso-8859-1', value);
     }
   }

   return value;
 }

 function rfc2231getparam(contentDisposition) {
   var matches = [],
       match;
   var iter = toParamRegExp('filename\\*((?!0\\d)\\d+)(\\*?)', 'ig');

   while ((match = iter.exec(contentDisposition)) !== null) {
     var _match = match,
         _match2 = _slicedToArray(_match, 4),
         n = _match2[1],
         quot = _match2[2],
         part = _match2[3];

     n = parseInt(n, 10);

     if (n in matches) {
       if (n === 0) {
         break;
       }

       continue;
     }

     matches[n] = [quot, part];
   }

   var parts = [];

   for (var n = 0; n < matches.length; ++n) {
     if (!(n in matches)) {
       break;
     }

     var _matches$n = _slicedToArray(matches[n], 2),
         quot = _matches$n[0],
         part = _matches$n[1];

     part = rfc2616unquote(part);

     if (quot) {
       part = unescape(part);

       if (n === 0) {
         part = rfc5987decode(part);
       }
     }

     parts.push(part);
   }

   return parts.join('');
 }

 function rfc2616unquote(value) {
   if (value.startsWith('"')) {
     var parts = value.slice(1).split('\\"');

     for (var i = 0; i < parts.length; ++i) {
       var quotindex = parts[i].indexOf('"');

       if (quotindex !== -1) {
         parts[i] = parts[i].slice(0, quotindex);
         parts.length = i + 1;
       }

       parts[i] = parts[i].replace(/\\(.)/g, '$1');
     }

     value = parts.join('"');
   }

   return value;
 }

 function rfc5987decode(extvalue) {
   var encodingend = extvalue.indexOf('\'');

   if (encodingend === -1) {
     return extvalue;
   }

   var encoding = extvalue.slice(0, encodingend);
   var langvalue = extvalue.slice(encodingend + 1);
   var value = langvalue.replace(/^[^']*'/, '');
   return textdecode(encoding, value);
 }

 function rfc2047decode(value) {
   if (!value.startsWith('=?') || /[\x00-\x19\x80-\xff]/.test(value)) {
     return value;
   }

   return value.replace(/=\?([\w-]*)\?([QqBb])\?((?:[^?]|\?(?!=))*)\?=/g, function (_, charset, encoding, text) {
     if (encoding === 'q' || encoding === 'Q') {
       text = text.replace(/_/g, ' ');
       text = text.replace(/=([0-9a-fA-F]{2})/g, function (_, hex) {
         return String.fromCharCode(parseInt(hex, 16));
       });
       return textdecode(charset, text);
     }

     try {
       text = atob(text);
     } catch (e) {}

     return textdecode(charset, text);
   });
 }

 return '';
}

/***/ }),
/* 168 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.PDFNetworkStream = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

var _network_utils = __w_pdfjs_require__(166);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

;
var OK_RESPONSE = 200;
var PARTIAL_CONTENT_RESPONSE = 206;

function getArrayBuffer(xhr) {
 var data = xhr.response;

 if (typeof data !== 'string') {
   return data;
 }

 var array = (0, _util.stringToBytes)(data);
 return array.buffer;
}

var NetworkManager =
/*#__PURE__*/
function () {
 function NetworkManager(url, args) {
   _classCallCheck(this, NetworkManager);

   this.url = url;
   args = args || {};
   this.isHttp = /^https?:/i.test(url);
   this.httpHeaders = this.isHttp && args.httpHeaders || {};
   this.withCredentials = args.withCredentials || false;

   this.getXhr = args.getXhr || function NetworkManager_getXhr() {
     return new XMLHttpRequest();
   };

   this.currXhrId = 0;
   this.pendingRequests = Object.create(null);
 }

 _createClass(NetworkManager, [{
   key: "requestRange",
   value: function requestRange(begin, end, listeners) {
     var args = {
       begin: begin,
       end: end
     };

     for (var prop in listeners) {
       args[prop] = listeners[prop];
     }

     return this.request(args);
   }
 }, {
   key: "requestFull",
   value: function requestFull(listeners) {
     return this.request(listeners);
   }
 }, {
   key: "request",
   value: function request(args) {
     var xhr = this.getXhr();
     var xhrId = this.currXhrId++;
     var pendingRequest = this.pendingRequests[xhrId] = {
       xhr: xhr
     };
     xhr.open('GET', this.url);
     xhr.withCredentials = this.withCredentials;

     for (var property in this.httpHeaders) {
       var value = this.httpHeaders[property];

       if (typeof value === 'undefined') {
         continue;
       }

       xhr.setRequestHeader(property, value);
     }

     if (this.isHttp && 'begin' in args && 'end' in args) {
       xhr.setRequestHeader('Range', "bytes=".concat(args.begin, "-").concat(args.end - 1));
       pendingRequest.expectedStatus = PARTIAL_CONTENT_RESPONSE;
     } else {
       pendingRequest.expectedStatus = OK_RESPONSE;
     }

     xhr.responseType = 'arraybuffer';

     if (args.onError) {
       xhr.onerror = function (evt) {
         args.onError(xhr.status);
       };
     }

     xhr.onreadystatechange = this.onStateChange.bind(this, xhrId);
     xhr.onprogress = this.onProgress.bind(this, xhrId);
     pendingRequest.onHeadersReceived = args.onHeadersReceived;
     pendingRequest.onDone = args.onDone;
     pendingRequest.onError = args.onError;
     pendingRequest.onProgress = args.onProgress;
     xhr.send(null);
     return xhrId;
   }
 }, {
   key: "onProgress",
   value: function onProgress(xhrId, evt) {
     var pendingRequest = this.pendingRequests[xhrId];

     if (!pendingRequest) {
       return;
     }

     if (pendingRequest.onProgress) {
       pendingRequest.onProgress(evt);
     }
   }
 }, {
   key: "onStateChange",
   value: function onStateChange(xhrId, evt) {
     var pendingRequest = this.pendingRequests[xhrId];

     if (!pendingRequest) {
       return;
     }

     var xhr = pendingRequest.xhr;

     if (xhr.readyState >= 2 && pendingRequest.onHeadersReceived) {
       pendingRequest.onHeadersReceived();
       delete pendingRequest.onHeadersReceived;
     }

     if (xhr.readyState !== 4) {
       return;
     }

     if (!(xhrId in this.pendingRequests)) {
       return;
     }

     delete this.pendingRequests[xhrId];

     if (xhr.status === 0 && this.isHttp) {
       if (pendingRequest.onError) {
         pendingRequest.onError(xhr.status);
       }

       return;
     }

     var xhrStatus = xhr.status || OK_RESPONSE;
     var ok_response_on_range_request = xhrStatus === OK_RESPONSE && pendingRequest.expectedStatus === PARTIAL_CONTENT_RESPONSE;

     if (!ok_response_on_range_request && xhrStatus !== pendingRequest.expectedStatus) {
       if (pendingRequest.onError) {
         pendingRequest.onError(xhr.status);
       }

       return;
     }

     var chunk = getArrayBuffer(xhr);

     if (xhrStatus === PARTIAL_CONTENT_RESPONSE) {
       var rangeHeader = xhr.getResponseHeader('Content-Range');
       var matches = /bytes (\d+)-(\d+)\/(\d+)/.exec(rangeHeader);
       pendingRequest.onDone({
         begin: parseInt(matches[1], 10),
         chunk: chunk
       });
     } else if (chunk) {
       pendingRequest.onDone({
         begin: 0,
         chunk: chunk
       });
     } else if (pendingRequest.onError) {
       pendingRequest.onError(xhr.status);
     }
   }
 }, {
   key: "hasPendingRequests",
   value: function hasPendingRequests() {
     for (var xhrId in this.pendingRequests) {
       return true;
     }

     return false;
   }
 }, {
   key: "getRequestXhr",
   value: function getRequestXhr(xhrId) {
     return this.pendingRequests[xhrId].xhr;
   }
 }, {
   key: "isPendingRequest",
   value: function isPendingRequest(xhrId) {
     return xhrId in this.pendingRequests;
   }
 }, {
   key: "abortAllRequests",
   value: function abortAllRequests() {
     for (var xhrId in this.pendingRequests) {
       this.abortRequest(xhrId | 0);
     }
   }
 }, {
   key: "abortRequest",
   value: function abortRequest(xhrId) {
     var xhr = this.pendingRequests[xhrId].xhr;
     delete this.pendingRequests[xhrId];
     xhr.abort();
   }
 }]);

 return NetworkManager;
}();

var PDFNetworkStream =
/*#__PURE__*/
function () {
 function PDFNetworkStream(source) {
   _classCallCheck(this, PDFNetworkStream);

   this._source = source;
   this._manager = new NetworkManager(source.url, {
     httpHeaders: source.httpHeaders,
     withCredentials: source.withCredentials
   });
   this._rangeChunkSize = source.rangeChunkSize;
   this._fullRequestReader = null;
   this._rangeRequestReaders = [];
 }

 _createClass(PDFNetworkStream, [{
   key: "_onRangeRequestReaderClosed",
   value: function _onRangeRequestReaderClosed(reader) {
     var i = this._rangeRequestReaders.indexOf(reader);

     if (i >= 0) {
       this._rangeRequestReaders.splice(i, 1);
     }
   }
 }, {
   key: "getFullReader",
   value: function getFullReader() {
     (0, _util.assert)(!this._fullRequestReader);
     this._fullRequestReader = new PDFNetworkStreamFullRequestReader(this._manager, this._source);
     return this._fullRequestReader;
   }
 }, {
   key: "getRangeReader",
   value: function getRangeReader(begin, end) {
     var reader = new PDFNetworkStreamRangeRequestReader(this._manager, begin, end);
     reader.onClosed = this._onRangeRequestReaderClosed.bind(this);

     this._rangeRequestReaders.push(reader);

     return reader;
   }
 }, {
   key: "cancelAllRequests",
   value: function cancelAllRequests(reason) {
     if (this._fullRequestReader) {
       this._fullRequestReader.cancel(reason);
     }

     var readers = this._rangeRequestReaders.slice(0);

     readers.forEach(function (reader) {
       reader.cancel(reason);
     });
   }
 }]);

 return PDFNetworkStream;
}();

exports.PDFNetworkStream = PDFNetworkStream;

var PDFNetworkStreamFullRequestReader =
/*#__PURE__*/
function () {
 function PDFNetworkStreamFullRequestReader(manager, source) {
   _classCallCheck(this, PDFNetworkStreamFullRequestReader);

   this._manager = manager;
   var args = {
     onHeadersReceived: this._onHeadersReceived.bind(this),
     onDone: this._onDone.bind(this),
     onError: this._onError.bind(this),
     onProgress: this._onProgress.bind(this)
   };
   this._url = source.url;
   this._fullRequestId = manager.requestFull(args);
   this._headersReceivedCapability = (0, _util.createPromiseCapability)();
   this._disableRange = source.disableRange || false;
   this._contentLength = source.length;
   this._rangeChunkSize = source.rangeChunkSize;

   if (!this._rangeChunkSize && !this._disableRange) {
     this._disableRange = true;
   }

   this._isStreamingSupported = false;
   this._isRangeSupported = false;
   this._cachedChunks = [];
   this._requests = [];
   this._done = false;
   this._storedError = undefined;
   this._filename = null;
   this.onProgress = null;
 }

 _createClass(PDFNetworkStreamFullRequestReader, [{
   key: "_onHeadersReceived",
   value: function _onHeadersReceived() {
     var fullRequestXhrId = this._fullRequestId;

     var fullRequestXhr = this._manager.getRequestXhr(fullRequestXhrId);

     var getResponseHeader = function getResponseHeader(name) {
       return fullRequestXhr.getResponseHeader(name);
     };

     var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({
       getResponseHeader: getResponseHeader,
       isHttp: this._manager.isHttp,
       rangeChunkSize: this._rangeChunkSize,
       disableRange: this._disableRange
     }),
         allowRangeRequests = _validateRangeRequest.allowRangeRequests,
         suggestedLength = _validateRangeRequest.suggestedLength;

     if (allowRangeRequests) {
       this._isRangeSupported = true;
     }

     this._contentLength = suggestedLength || this._contentLength;
     this._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);

     if (this._isRangeSupported) {
       this._manager.abortRequest(fullRequestXhrId);
     }

     this._headersReceivedCapability.resolve();
   }
 }, {
   key: "_onDone",
   value: function _onDone(args) {
     if (args) {
       if (this._requests.length > 0) {
         var requestCapability = this._requests.shift();

         requestCapability.resolve({
           value: args.chunk,
           done: false
         });
       } else {
         this._cachedChunks.push(args.chunk);
       }
     }

     this._done = true;

     if (this._cachedChunks.length > 0) {
       return;
     }

     this._requests.forEach(function (requestCapability) {
       requestCapability.resolve({
         value: undefined,
         done: true
       });
     });

     this._requests = [];
   }
 }, {
   key: "_onError",
   value: function _onError(status) {
     var url = this._url;
     var exception = (0, _network_utils.createResponseStatusError)(status, url);
     this._storedError = exception;

     this._headersReceivedCapability.reject(exception);

     this._requests.forEach(function (requestCapability) {
       requestCapability.reject(exception);
     });

     this._requests = [];
     this._cachedChunks = [];
   }
 }, {
   key: "_onProgress",
   value: function _onProgress(data) {
     if (this.onProgress) {
       this.onProgress({
         loaded: data.loaded,
         total: data.lengthComputable ? data.total : this._contentLength
       });
     }
   }
 }, {
   key: "read",
   value: function () {
     var _read = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee() {
       var chunk, requestCapability;
       return _regenerator["default"].wrap(function _callee$(_context) {
         while (1) {
           switch (_context.prev = _context.next) {
             case 0:
               if (!this._storedError) {
                 _context.next = 2;
                 break;
               }

               throw this._storedError;

             case 2:
               if (!(this._cachedChunks.length > 0)) {
                 _context.next = 5;
                 break;
               }

               chunk = this._cachedChunks.shift();
               return _context.abrupt("return", {
                 value: chunk,
                 done: false
               });

             case 5:
               if (!this._done) {
                 _context.next = 7;
                 break;
               }

               return _context.abrupt("return", {
                 value: undefined,
                 done: true
               });

             case 7:
               requestCapability = (0, _util.createPromiseCapability)();

               this._requests.push(requestCapability);

               return _context.abrupt("return", requestCapability.promise);

             case 10:
             case "end":
               return _context.stop();
           }
         }
       }, _callee, this);
     }));

     function read() {
       return _read.apply(this, arguments);
     }

     return read;
   }()
 }, {
   key: "cancel",
   value: function cancel(reason) {
     this._done = true;

     this._headersReceivedCapability.reject(reason);

     this._requests.forEach(function (requestCapability) {
       requestCapability.resolve({
         value: undefined,
         done: true
       });
     });

     this._requests = [];

     if (this._manager.isPendingRequest(this._fullRequestId)) {
       this._manager.abortRequest(this._fullRequestId);
     }

     this._fullRequestReader = null;
   }
 }, {
   key: "filename",
   get: function get() {
     return this._filename;
   }
 }, {
   key: "isRangeSupported",
   get: function get() {
     return this._isRangeSupported;
   }
 }, {
   key: "isStreamingSupported",
   get: function get() {
     return this._isStreamingSupported;
   }
 }, {
   key: "contentLength",
   get: function get() {
     return this._contentLength;
   }
 }, {
   key: "headersReady",
   get: function get() {
     return this._headersReceivedCapability.promise;
   }
 }]);

 return PDFNetworkStreamFullRequestReader;
}();

var PDFNetworkStreamRangeRequestReader =
/*#__PURE__*/
function () {
 function PDFNetworkStreamRangeRequestReader(manager, begin, end) {
   _classCallCheck(this, PDFNetworkStreamRangeRequestReader);

   this._manager = manager;
   var args = {
     onDone: this._onDone.bind(this),
     onProgress: this._onProgress.bind(this)
   };
   this._requestId = manager.requestRange(begin, end, args);
   this._requests = [];
   this._queuedChunk = null;
   this._done = false;
   this.onProgress = null;
   this.onClosed = null;
 }

 _createClass(PDFNetworkStreamRangeRequestReader, [{
   key: "_close",
   value: function _close() {
     if (this.onClosed) {
       this.onClosed(this);
     }
   }
 }, {
   key: "_onDone",
   value: function _onDone(data) {
     var chunk = data.chunk;

     if (this._requests.length > 0) {
       var requestCapability = this._requests.shift();

       requestCapability.resolve({
         value: chunk,
         done: false
       });
     } else {
       this._queuedChunk = chunk;
     }

     this._done = true;

     this._requests.forEach(function (requestCapability) {
       requestCapability.resolve({
         value: undefined,
         done: true
       });
     });

     this._requests = [];

     this._close();
   }
 }, {
   key: "_onProgress",
   value: function _onProgress(evt) {
     if (!this.isStreamingSupported && this.onProgress) {
       this.onProgress({
         loaded: evt.loaded
       });
     }
   }
 }, {
   key: "read",
   value: function () {
     var _read2 = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee2() {
       var chunk, requestCapability;
       return _regenerator["default"].wrap(function _callee2$(_context2) {
         while (1) {
           switch (_context2.prev = _context2.next) {
             case 0:
               if (!(this._queuedChunk !== null)) {
                 _context2.next = 4;
                 break;
               }

               chunk = this._queuedChunk;
               this._queuedChunk = null;
               return _context2.abrupt("return", {
                 value: chunk,
                 done: false
               });

             case 4:
               if (!this._done) {
                 _context2.next = 6;
                 break;
               }

               return _context2.abrupt("return", {
                 value: undefined,
                 done: true
               });

             case 6:
               requestCapability = (0, _util.createPromiseCapability)();

               this._requests.push(requestCapability);

               return _context2.abrupt("return", requestCapability.promise);

             case 9:
             case "end":
               return _context2.stop();
           }
         }
       }, _callee2, this);
     }));

     function read() {
       return _read2.apply(this, arguments);
     }

     return read;
   }()
 }, {
   key: "cancel",
   value: function cancel(reason) {
     this._done = true;

     this._requests.forEach(function (requestCapability) {
       requestCapability.resolve({
         value: undefined,
         done: true
       });
     });

     this._requests = [];

     if (this._manager.isPendingRequest(this._requestId)) {
       this._manager.abortRequest(this._requestId);
     }

     this._close();
   }
 }, {
   key: "isStreamingSupported",
   get: function get() {
     return false;
   }
 }]);

 return PDFNetworkStreamRangeRequestReader;
}();

/***/ }),
/* 169 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
 value: true
});
exports.PDFFetchStream = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

var _network_utils = __w_pdfjs_require__(166);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function createFetchOptions(headers, withCredentials, abortController) {
 return {
   method: 'GET',
   headers: headers,
   signal: abortController && abortController.signal,
   mode: 'cors',
   credentials: withCredentials ? 'include' : 'same-origin',
   redirect: 'follow'
 };
}

var PDFFetchStream =
/*#__PURE__*/
function () {
 function PDFFetchStream(source) {
   _classCallCheck(this, PDFFetchStream);

   this.source = source;
   this.isHttp = /^https?:/i.test(source.url);
   this.httpHeaders = this.isHttp && source.httpHeaders || {};
   this._fullRequestReader = null;
   this._rangeRequestReaders = [];
 }

 _createClass(PDFFetchStream, [{
   key: "getFullReader",
   value: function getFullReader() {
     (0, _util.assert)(!this._fullRequestReader);
     this._fullRequestReader = new PDFFetchStreamReader(this);
     return this._fullRequestReader;
   }
 }, {
   key: "getRangeReader",
   value: function getRangeReader(begin, end) {
     if (end <= this._progressiveDataLength) {
       return null;
     }

     var reader = new PDFFetchStreamRangeReader(this, begin, end);

     this._rangeRequestReaders.push(reader);

     return reader;
   }
 }, {
   key: "cancelAllRequests",
   value: function cancelAllRequests(reason) {
     if (this._fullRequestReader) {
       this._fullRequestReader.cancel(reason);
     }

     var readers = this._rangeRequestReaders.slice(0);

     readers.forEach(function (reader) {
       reader.cancel(reason);
     });
   }
 }, {
   key: "_progressiveDataLength",
   get: function get() {
     return this._fullRequestReader ? this._fullRequestReader._loaded : 0;
   }
 }]);

 return PDFFetchStream;
}();

exports.PDFFetchStream = PDFFetchStream;

var PDFFetchStreamReader =
/*#__PURE__*/
function () {
 function PDFFetchStreamReader(stream) {
   var _this = this;

   _classCallCheck(this, PDFFetchStreamReader);

   this._stream = stream;
   this._reader = null;
   this._loaded = 0;
   this._filename = null;
   var source = stream.source;
   this._withCredentials = source.withCredentials || false;
   this._contentLength = source.length;
   this._headersCapability = (0, _util.createPromiseCapability)();
   this._disableRange = source.disableRange || false;
   this._rangeChunkSize = source.rangeChunkSize;

   if (!this._rangeChunkSize && !this._disableRange) {
     this._disableRange = true;
   }

   if (typeof AbortController !== 'undefined') {
     this._abortController = new AbortController();
   }

   this._isStreamingSupported = !source.disableStream;
   this._isRangeSupported = !source.disableRange;
   this._headers = new Headers();

   for (var property in this._stream.httpHeaders) {
     var value = this._stream.httpHeaders[property];

     if (typeof value === 'undefined') {
       continue;
     }

     this._headers.append(property, value);
   }

   var url = source.url;
   fetch(url, createFetchOptions(this._headers, this._withCredentials, this._abortController)).then(function (response) {
     if (!(0, _network_utils.validateResponseStatus)(response.status)) {
       throw (0, _network_utils.createResponseStatusError)(response.status, url);
     }

     _this._reader = response.body.getReader();

     _this._headersCapability.resolve();

     var getResponseHeader = function getResponseHeader(name) {
       return response.headers.get(name);
     };

     var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({
       getResponseHeader: getResponseHeader,
       isHttp: _this._stream.isHttp,
       rangeChunkSize: _this._rangeChunkSize,
       disableRange: _this._disableRange
     }),
         allowRangeRequests = _validateRangeRequest.allowRangeRequests,
         suggestedLength = _validateRangeRequest.suggestedLength;

     _this._isRangeSupported = allowRangeRequests;
     _this._contentLength = suggestedLength || _this._contentLength;
     _this._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);

     if (!_this._isStreamingSupported && _this._isRangeSupported) {
       _this.cancel(new _util.AbortException('Streaming is disabled.'));
     }
   })["catch"](this._headersCapability.reject);
   this.onProgress = null;
 }

 _createClass(PDFFetchStreamReader, [{
   key: "read",
   value: function () {
     var _read = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee() {
       var _ref, value, done, buffer;

       return _regenerator["default"].wrap(function _callee$(_context) {
         while (1) {
           switch (_context.prev = _context.next) {
             case 0:
               _context.next = 2;
               return this._headersCapability.promise;

             case 2:
               _context.next = 4;
               return this._reader.read();

             case 4:
               _ref = _context.sent;
               value = _ref.value;
               done = _ref.done;

               if (!done) {
                 _context.next = 9;
                 break;
               }

               return _context.abrupt("return", {
                 value: value,
                 done: done
               });

             case 9:
               this._loaded += value.byteLength;

               if (this.onProgress) {
                 this.onProgress({
                   loaded: this._loaded,
                   total: this._contentLength
                 });
               }

               buffer = new Uint8Array(value).buffer;
               return _context.abrupt("return", {
                 value: buffer,
                 done: false
               });

             case 13:
             case "end":
               return _context.stop();
           }
         }
       }, _callee, this);
     }));

     function read() {
       return _read.apply(this, arguments);
     }

     return read;
   }()
 }, {
   key: "cancel",
   value: function cancel(reason) {
     if (this._reader) {
       this._reader.cancel(reason);
     }

     if (this._abortController) {
       this._abortController.abort();
     }
   }
 }, {
   key: "headersReady",
   get: function get() {
     return this._headersCapability.promise;
   }
 }, {
   key: "filename",
   get: function get() {
     return this._filename;
   }
 }, {
   key: "contentLength",
   get: function get() {
     return this._contentLength;
   }
 }, {
   key: "isRangeSupported",
   get: function get() {
     return this._isRangeSupported;
   }
 }, {
   key: "isStreamingSupported",
   get: function get() {
     return this._isStreamingSupported;
   }
 }]);

 return PDFFetchStreamReader;
}();

var PDFFetchStreamRangeReader =
/*#__PURE__*/
function () {
 function PDFFetchStreamRangeReader(stream, begin, end) {
   var _this2 = this;

   _classCallCheck(this, PDFFetchStreamRangeReader);

   this._stream = stream;
   this._reader = null;
   this._loaded = 0;
   var source = stream.source;
   this._withCredentials = source.withCredentials || false;
   this._readCapability = (0, _util.createPromiseCapability)();
   this._isStreamingSupported = !source.disableStream;

   if (typeof AbortController !== 'undefined') {
     this._abortController = new AbortController();
   }

   this._headers = new Headers();

   for (var property in this._stream.httpHeaders) {
     var value = this._stream.httpHeaders[property];

     if (typeof value === 'undefined') {
       continue;
     }

     this._headers.append(property, value);
   }

   this._headers.append('Range', "bytes=".concat(begin, "-").concat(end - 1));

   var url = source.url;
   fetch(url, createFetchOptions(this._headers, this._withCredentials, this._abortController)).then(function (response) {
     if (!(0, _network_utils.validateResponseStatus)(response.status)) {
       throw (0, _network_utils.createResponseStatusError)(response.status, url);
     }

     _this2._readCapability.resolve();

     _this2._reader = response.body.getReader();
   });
   this.onProgress = null;
 }

 _createClass(PDFFetchStreamRangeReader, [{
   key: "read",
   value: function () {
     var _read2 = _asyncToGenerator(
     /*#__PURE__*/
     _regenerator["default"].mark(function _callee2() {
       var _ref2, value, done, buffer;

       return _regenerator["default"].wrap(function _callee2$(_context2) {
         while (1) {
           switch (_context2.prev = _context2.next) {
             case 0:
               _context2.next = 2;
               return this._readCapability.promise;

             case 2:
               _context2.next = 4;
               return this._reader.read();

             case 4:
               _ref2 = _context2.sent;
               value = _ref2.value;
               done = _ref2.done;

               if (!done) {
                 _context2.next = 9;
                 break;
               }

               return _context2.abrupt("return", {
                 value: value,
                 done: done
               });

             case 9:
               this._loaded += value.byteLength;

               if (this.onProgress) {
                 this.onProgress({
                   loaded: this._loaded
                 });
               }

               buffer = new Uint8Array(value).buffer;
               return _context2.abrupt("return", {
                 value: buffer,
                 done: false
               });

             case 13:
             case "end":
               return _context2.stop();
           }
         }
       }, _callee2, this);
     }));

     function read() {
       return _read2.apply(this, arguments);
     }

     return read;
   }()
 }, {
   key: "cancel",
   value: function cancel(reason) {
     if (this._reader) {
       this._reader.cancel(reason);
     }

     if (this._abortController) {
       this._abortController.abort();
     }
   }
 }, {
   key: "isStreamingSupported",
   get: function get() {
     return this._isStreamingSupported;
   }
 }]);

 return PDFFetchStreamRangeReader;
}();

/***/ })
/******/ ]);
});
//# sourceMappingURL=pdf.js.map