pdfjs-dist/build/pdf.min.js

Generic build of Mozilla's PDF.js library.

/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2020 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
 */
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n=s.WARNINGS;function i(e){n>=s.WARNINGS&&console.log("Warning: "+e)}function a(e){throw new Error(e)}function o(e,t){e||a(t)}function l(e,t,r){return Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!1}),r}const c=function(){function e(t){this.constructor===e&&a("Cannot initialize BaseException."),this.message=t,this.name=this.constructor.name}return e.prototype=new Error,e.constructor=e,e}();t.BaseException=c;t.PasswordException=class extends c{constructor(e,t){super(e),this.code=t}};t.UnknownErrorException=class extends c{constructor(e,t){super(e),this.details=t}};t.InvalidPDFException=class extends c{};t.MissingPDFException=class extends c{};t.UnexpectedResponseException=class extends c{constructor(e,t){super(e),this.status=t}};t.FormatError=class extends c{};t.AbortException=class extends c{};const h=/\x00/g;function d(e){o("string"==typeof e,"Invalid argument for stringToBytes");const t=e.length,r=new Uint8Array(t);for(let s=0;s<t;++s)r[s]=255&e.charCodeAt(s);return r}function u(e){return void 0!==e.length?e.length:(o(void 0!==e.byteLength,"arrayByteLength - invalid argument."),e.byteLength)}const p={get value(){return l(this,"value",function(){const e=new Uint8Array(4);return e[0]=1,1===new Uint32Array(e.buffer,0,1)[0]}())}};t.IsLittleEndianCached=p;const g={get value(){return l(this,"value",function(){try{return new Function(""),!0}catch(e){return!1}}())}};t.IsEvalSupportedCached=g;const f=["rgb(",0,",",0,",",0,")"];class m{static makeCssRgb(e,t,r){return f[1]=e,f[3]=t,f[5]=r,f.join("")}static transform(e,t){return[e[0]*t[0]+e[2]*t[1],e[1]*t[0]+e[3]*t[1],e[0]*t[2]+e[2]*t[3],e[1]*t[2]+e[3]*t[3],e[0]*t[4]+e[2]*t[5]+e[4],e[1]*t[4]+e[3]*t[5]+e[5]]}static applyTransform(e,t){return[e[0]*t[0]+e[1]*t[2]+t[4],e[0]*t[1]+e[1]*t[3]+t[5]]}static applyInverseTransform(e,t){const r=t[0]*t[3]-t[1]*t[2];return[(e[0]*t[3]-e[1]*t[2]+t[2]*t[5]-t[4]*t[3])/r,(-e[0]*t[1]+e[1]*t[0]+t[4]*t[1]-t[5]*t[0])/r]}static getAxialAlignedBoundingBox(e,t){const r=m.applyTransform(e,t),s=m.applyTransform(e.slice(2,4),t),n=m.applyTransform([e[0],e[3]],t),i=m.applyTransform([e[2],e[1]],t);return[Math.min(r[0],s[0],n[0],i[0]),Math.min(r[1],s[1],n[1],i[1]),Math.max(r[0],s[0],n[0],i[0]),Math.max(r[1],s[1],n[1],i[1])]}static inverseTransform(e){const t=e[0]*e[3]-e[1]*e[2];return[e[3]/t,-e[1]/t,-e[2]/t,e[0]/t,(e[2]*e[5]-e[4]*e[3])/t,(e[4]*e[1]-e[5]*e[0])/t]}static apply3dTransform(e,t){return[e[0]*t[0]+e[1]*t[1]+e[2]*t[2],e[3]*t[0]+e[4]*t[1]+e[5]*t[2],e[6]*t[0]+e[7]*t[1]+e[8]*t[2]]}static singularValueDecompose2dScale(e){const t=[e[0],e[2],e[1],e[3]],r=e[0]*t[0]+e[1]*t[2],s=e[0]*t[1]+e[1]*t[3],n=e[2]*t[0]+e[3]*t[2],i=e[2]*t[1]+e[3]*t[3],a=(r+i)/2,o=Math.sqrt((r+i)*(r+i)-4*(r*i-n*s))/2,l=a+o||1,c=a-o||1;return[Math.sqrt(l),Math.sqrt(c)]}static normalizeRect(e){const t=e.slice(0);return e[0]>e[2]&&(t[0]=e[2],t[2]=e[0]),e[1]>e[3]&&(t[1]=e[3],t[3]=e[1]),t}static intersect(e,t){function r(e,t){return e-t}const s=[e[0],e[2],t[0],t[2]].sort(r),n=[e[1],e[3],t[1],t[3]].sort(r),i=[];return e=m.normalizeRect(e),t=m.normalizeRect(t),s[0]===e[0]&&s[1]===t[0]||s[0]===t[0]&&s[1]===e[0]?(i[0]=s[1],i[2]=s[2],n[0]===e[1]&&n[1]===t[1]||n[0]===t[1]&&n[1]===e[1]?(i[1]=n[1],i[3]=n[2],i):null):null}}t.Util=m;const A=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,728,711,710,729,733,731,730,732,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8226,8224,8225,8230,8212,8211,402,8260,8249,8250,8722,8240,8222,8220,8221,8216,8217,8218,8482,64257,64258,321,338,352,376,381,305,322,339,353,382,0,8364];const b=function(){const e="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";return function(t,r,s=!1){if(!s&&URL.createObjectURL){const e=new Blob([t],{type:r});return URL.createObjectURL(e)}let n=`data:${r};base64,`;for(let r=0,s=t.length;r<s;r+=3){const i=255&t[r],a=255&t[r+1],o=255&t[r+2];n+=e[i>>2]+e[(3&i)<<4|a>>4]+e[r+1<s?(15&a)<<2|o>>6:64]+e[r+2<s?63&o:64]}return n}}();t.createObjectURL=b},function(e,t,r){"use strict";r(4)},function(e,t,r){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.isNodeJS=void 0;const s="object"==typeof process&&process+""=="[object process]"&&!process.versions.nw&&!process.versions.electron;t.isNodeJS=s},function(module,exports,__w_pdfjs_require__){"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.getDocument=getDocument,exports.setPDFNetworkStreamFactory=setPDFNetworkStreamFactory,exports.build=exports.version=exports.PDFPageProxy=exports.PDFDocumentProxy=exports.PDFWorker=exports.PDFDataRangeTransport=exports.LoopbackPort=void 0;var _util=__w_pdfjs_require__(2),_display_utils=__w_pdfjs_require__(1),_font_loader=__w_pdfjs_require__(6),_api_compatibility=__w_pdfjs_require__(7),_canvas=__w_pdfjs_require__(8),_worker_options=__w_pdfjs_require__(10),_is_node=__w_pdfjs_require__(4),_message_handler=__w_pdfjs_require__(11),_metadata=__w_pdfjs_require__(12),_transport_stream=__w_pdfjs_require__(14),_webgl=__w_pdfjs_require__(15);const DEFAULT_RANGE_CHUNK_SIZE=65536,RENDERING_CANCELLED_TIMEOUT=100;let createPDFNetworkStream;function setPDFNetworkStreamFactory(e){createPDFNetworkStream=e}function getDocument(e){const t=new PDFDocumentLoadingTask;let r;if("string"==typeof e)r={url:e};else if((0,_util.isArrayBuffer)(e))r={data:e};else if(e instanceof PDFDataRangeTransport)r={range:e};else{if("object"!=typeof e)throw new Error("Invalid parameter in getDocument, need either Uint8Array, string or a parameter object");if(!e.url&&!e.data&&!e.range)throw new Error("Invalid parameter object: need either .data, .range or .url");r=e}const s=Object.create(null);let n=null,i=null;for(const e in r)if("url"!==e||"undefined"==typeof window)if("range"!==e)if("worker"!==e)if("data"!==e||r[e]instanceof Uint8Array)s[e]=r[e];else{const t=r[e];if("string"==typeof t)s[e]=(0,_util.stringToBytes)(t);else if("object"!=typeof t||null===t||isNaN(t.length)){if(!(0,_util.isArrayBuffer)(t))throw new Error("Invalid PDF binary data: either typed array, string or array-like object is expected in the data property.");s[e]=new Uint8Array(t)}else s[e]=new Uint8Array(t)}else i=r[e];else n=r[e];else s[e]=new URL(r[e],window.location).href;if(s.rangeChunkSize=s.rangeChunkSize||DEFAULT_RANGE_CHUNK_SIZE,s.CMapReaderFactory=s.CMapReaderFactory||_display_utils.DOMCMapReaderFactory,s.ignoreErrors=!0!==s.stopAtErrors,s.fontExtraProperties=!0===s.fontExtraProperties,s.pdfBug=!0===s.pdfBug,Number.isInteger(s.maxImageSize)||(s.maxImageSize=-1),"boolean"!=typeof s.isEvalSupported&&(s.isEvalSupported=!0),"boolean"!=typeof s.disableFontFace&&(s.disableFontFace=_api_compatibility.apiCompatibilityParams.disableFontFace||!1),"boolean"!=typeof s.disableRange&&(s.disableRange=!1),"boolean"!=typeof s.disableStream&&(s.disableStream=!1),"boolean"!=typeof s.disableAutoFetch&&(s.disableAutoFetch=!1),(0,_util.setVerbosityLevel)(s.verbosity),!i){const e={verbosity:s.verbosity,port:_worker_options.GlobalWorkerOptions.workerPort};i=e.port?PDFWorker.fromPort(e):new PDFWorker(e),t._worker=i}const a=t.docId;return i.promise.then((function(){if(t.destroyed)throw new Error("Loading aborted");const e=_fetchDocument(i,s,n,a),r=new Promise((function(e){let t;n?t=new _transport_stream.PDFDataTransportStream({length:s.length,initialData:s.initialData,progressiveDone:s.progressiveDone,disableRange:s.disableRange,disableStream:s.disableStream},n):s.data||(t=createPDFNetworkStream({url:s.url,length:s.length,httpHeaders:s.httpHeaders,withCredentials:s.withCredentials,rangeChunkSize:s.rangeChunkSize,disableRange:s.disableRange,disableStream:s.disableStream})),e(t)}));return Promise.all([e,r]).then((function([e,r]){if(t.destroyed)throw new Error("Loading aborted");const n=new _message_handler.MessageHandler(a,e,i.port);n.postMessageTransfers=i.postMessageTransfers;const o=new WorkerTransport(n,t,r,s);t._transport=o,n.send("Ready",null)}))})).catch(t._capability.reject),t}function _fetchDocument(e,t,r,s){return e.destroyed?Promise.reject(new Error("Worker was destroyed")):(r&&(t.length=r.length,t.initialData=r.initialData,t.progressiveDone=r.progressiveDone),e.messageHandler.sendWithPromise("GetDocRequest",{docId:s,apiVersion:"2.5.207",source:{data:t.data,url:t.url,password:t.password,disableAutoFetch:t.disableAutoFetch,rangeChunkSize:t.rangeChunkSize,length:t.length},maxImageSize:t.maxImageSize,disableFontFace:t.disableFontFace,postMessageTransfers:e.postMessageTransfers,docBaseUrl:t.docBaseUrl,ignoreErrors:t.ignoreErrors,isEvalSupported:t.isEvalSupported,fontExtraProperties:t.fontExtraProperties}).then((function(t){if(e.destroyed)throw new Error("Worker was destroyed");return t})))}const PDFDocumentLoadingTask=function(){let e=0;return class{constructor(){this._capability=(0,_util.createPromiseCapability)(),this._transport=null,this._worker=null,this.docId="d"+e++,this.destroyed=!1,this.onPassword=null,this.onProgress=null,this.onUnsupportedFeature=null}get promise(){return this._capability.promise}destroy(){this.destroyed=!0;return(this._transport?this._transport.destroy():Promise.resolve()).then(()=>{this._transport=null,this._worker&&(this._worker.destroy(),this._worker=null)})}}}();class PDFDataRangeTransport{constructor(e,t,r=!1){this.length=e,this.initialData=t,this.progressiveDone=r,this._rangeListeners=[],this._progressListeners=[],this._progressiveReadListeners=[],this._progressiveDoneListeners=[],this._readyCapability=(0,_util.createPromiseCapability)()}addRangeListener(e){this._rangeListeners.push(e)}addProgressListener(e){this._progressListeners.push(e)}addProgressiveReadListener(e){this._progressiveReadListeners.push(e)}addProgressiveDoneListener(e){this._progressiveDoneListeners.push(e)}onDataRange(e,t){for(const r of this._rangeListeners)r(e,t)}onDataProgress(e,t){this._readyCapability.promise.then(()=>{for(const r of this._progressListeners)r(e,t)})}onDataProgressiveRead(e){this._readyCapability.promise.then(()=>{for(const t of this._progressiveReadListeners)t(e)})}onDataProgressiveDone(){this._readyCapability.promise.then(()=>{for(const e of this._progressiveDoneListeners)e()})}transportReady(){this._readyCapability.resolve()}requestDataRange(e,t){(0,_util.unreachable)("Abstract method PDFDataRangeTransport.requestDataRange")}abort(){}}exports.PDFDataRangeTransport=PDFDataRangeTransport;class PDFDocumentProxy{constructor(e,t){this._pdfInfo=e,this._transport=t}get numPages(){return this._pdfInfo.numPages}get fingerprint(){return this._pdfInfo.fingerprint}getPage(e){return this._transport.getPage(e)}getPageIndex(e){return this._transport.getPageIndex(e)}getDestinations(){return this._transport.getDestinations()}getDestination(e){return this._transport.getDestination(e)}getPageLabels(){return this._transport.getPageLabels()}getPageLayout(){return this._transport.getPageLayout()}getPageMode(){return this._transport.getPageMode()}getViewerPreferences(){return this._transport.getViewerPreferences()}getOpenAction(){return this._transport.getOpenAction()}getOpenActionDestination(){return(0,_display_utils.deprecated)("getOpenActionDestination, use getOpenAction instead."),this.getOpenAction().then((function(e){return e&&e.dest?e.dest:null}))}getAttachments(){return this._transport.getAttachments()}getJavaScript(){return this._transport.getJavaScript()}getOutline(){return this._transport.getOutline()}getPermissions(){return this._transport.getPermissions()}getMetadata(){return this._transport.getMetadata()}getData(){return this._transport.getData()}getDownloadInfo(){return this._transport.downloadInfoCapability.promise}getStats(){return this._transport.getStats()}cleanup(){return this._transport.startCleanup()}destroy(){return this.loadingTask.destroy()}get loadingParams(){return this._transport.loadingParams}get loadingTask(){return this._transport.loadingTask}}exports.PDFDocumentProxy=PDFDocumentProxy;class PDFPageProxy{constructor(e,t,r,s=!1){this._pageIndex=e,this._pageInfo=t,this._transport=r,this._stats=s?new _display_utils.StatTimer:null,this._pdfBug=s,this.commonObjs=r.commonObjs,this.objs=new PDFObjects,this.cleanupAfterRender=!1,this.pendingCleanup=!1,this.intentStates=Object.create(null),this.destroyed=!1}get pageNumber(){return this._pageIndex+1}get rotate(){return this._pageInfo.rotate}get ref(){return this._pageInfo.ref}get userUnit(){return this._pageInfo.userUnit}get view(){return this._pageInfo.view}getViewport({scale:e,rotation:t=this.rotate,offsetX:r=0,offsetY:s=0,dontFlip:n=!1}={}){return new _display_utils.PageViewport({viewBox:this.view,scale:e,rotation:t,offsetX:r,offsetY:s,dontFlip:n})}getAnnotations({intent:e=null}={}){return this.annotationsPromise&&this.annotationsIntent===e||(this.annotationsPromise=this._transport.getAnnotations(this._pageIndex,e),this.annotationsIntent=e),this.annotationsPromise}render({canvasContext:e,viewport:t,intent:r="display",enableWebGL:s=!1,renderInteractiveForms:n=!1,transform:i=null,imageLayer:a=null,canvasFactory:o=null,background:l=null}){this._stats&&this._stats.time("Overall");const c="print"===r?"print":"display";this.pendingCleanup=!1,this.intentStates[c]||(this.intentStates[c]=Object.create(null));const h=this.intentStates[c];h.streamReaderCancelTimeout&&(clearTimeout(h.streamReaderCancelTimeout),h.streamReaderCancelTimeout=null);const d=o||new _display_utils.DOMCanvasFactory,u=new _webgl.WebGLContext({enable:s});h.displayReadyCapability||(h.displayReadyCapability=(0,_util.createPromiseCapability)(),h.operatorList={fnArray:[],argsArray:[],lastChunk:!1},this._stats&&this._stats.time("Page Request"),this._pumpOperatorList({pageIndex:this._pageIndex,intent:c,renderInteractiveForms:!0===n}));const p=e=>{const t=h.renderTasks.indexOf(g);t>=0&&h.renderTasks.splice(t,1),(this.cleanupAfterRender||"print"===c)&&(this.pendingCleanup=!0),this._tryCleanup(),e?(g.capability.reject(e),this._abortOperatorList({intentState:h,reason:e})):g.capability.resolve(),this._stats&&(this._stats.timeEnd("Rendering"),this._stats.timeEnd("Overall"))},g=new InternalRenderTask({callback:p,params:{canvasContext:e,viewport:t,transform:i,imageLayer:a,background:l},objs:this.objs,commonObjs:this.commonObjs,operatorList:h.operatorList,pageIndex:this._pageIndex,canvasFactory:d,webGLContext:u,useRequestAnimationFrame:"print"!==c,pdfBug:this._pdfBug});h.renderTasks||(h.renderTasks=[]),h.renderTasks.push(g);const f=g.task;return h.displayReadyCapability.promise.then(e=>{this.pendingCleanup?p():(this._stats&&this._stats.time("Rendering"),g.initializeGraphics(e),g.operatorListChanged())}).catch(p),f}getOperatorList(){this.intentStates.oplist||(this.intentStates.oplist=Object.create(null));const e=this.intentStates.oplist;let t;return e.opListReadCapability||(t={},t.operatorListChanged=function(){if(e.operatorList.lastChunk){e.opListReadCapability.resolve(e.operatorList);const r=e.renderTasks.indexOf(t);r>=0&&e.renderTasks.splice(r,1)}},e.opListReadCapability=(0,_util.createPromiseCapability)(),e.renderTasks=[],e.renderTasks.push(t),e.operatorList={fnArray:[],argsArray:[],lastChunk:!1},this._stats&&this._stats.time("Page Request"),this._pumpOperatorList({pageIndex:this._pageIndex,intent:"oplist"})),e.opListReadCapability.promise}streamTextContent({normalizeWhitespace:e=!1,disableCombineTextItems:t=!1}={}){return this._transport.messageHandler.sendWithStream("GetTextContent",{pageIndex:this._pageIndex,normalizeWhitespace:!0===e,combineTextItems:!0!==t},{highWaterMark:100,size:e=>e.items.length})}getTextContent(e={}){const t=this.streamTextContent(e);return new Promise((function(e,r){const s=t.getReader(),n={items:[],styles:Object.create(null)};!function t(){s.read().then((function({value:r,done:s}){s?e(n):(Object.assign(n.styles,r.styles),n.items.push(...r.items),t())}),r)}()}))}_destroy(){this.destroyed=!0,this._transport.pageCache[this._pageIndex]=null;const e=[];return Object.keys(this.intentStates).forEach(t=>{const r=this.intentStates[t];this._abortOperatorList({intentState:r,reason:new Error("Page was destroyed."),force:!0}),"oplist"!==t&&r.renderTasks.forEach((function(t){const r=t.capability.promise.catch((function(){}));e.push(r),t.cancel()}))}),this.objs.clear(),this.annotationsPromise=null,this.pendingCleanup=!1,Promise.all(e)}cleanup(e=!1){return this.pendingCleanup=!0,this._tryCleanup(e)}_tryCleanup(e=!1){return!(!this.pendingCleanup||Object.keys(this.intentStates).some(e=>{const t=this.intentStates[e];return 0!==t.renderTasks.length||!t.operatorList.lastChunk}))&&(Object.keys(this.intentStates).forEach(e=>{delete this.intentStates[e]}),this.objs.clear(),this.annotationsPromise=null,e&&this._stats&&(this._stats=new _display_utils.StatTimer),this.pendingCleanup=!1,!0)}_startRenderPage(e,t){const r=this.intentStates[t];r&&(this._stats&&this._stats.timeEnd("Page Request"),r.displayReadyCapability&&r.displayReadyCapability.resolve(e))}_renderPageChunk(e,t){for(let r=0,s=e.length;r<s;r++)t.operatorList.fnArray.push(e.fnArray[r]),t.operatorList.argsArray.push(e.argsArray[r]);t.operatorList.lastChunk=e.lastChunk;for(let e=0;e<t.renderTasks.length;e++)t.renderTasks[e].operatorListChanged();e.lastChunk&&this._tryCleanup()}_pumpOperatorList(e){(0,_util.assert)(e.intent,'PDFPageProxy._pumpOperatorList: Expected "intent" argument.');const t=this._transport.messageHandler.sendWithStream("GetOperatorList",e).getReader(),r=this.intentStates[e.intent];r.streamReader=t;const s=()=>{t.read().then(({value:e,done:t})=>{t?r.streamReader=null:this._transport.destroyed||(this._renderPageChunk(e,r),s())},e=>{if(r.streamReader=null,!this._transport.destroyed){if(r.operatorList){r.operatorList.lastChunk=!0;for(let e=0;e<r.renderTasks.length;e++)r.renderTasks[e].operatorListChanged();this._tryCleanup()}if(r.displayReadyCapability)r.displayReadyCapability.reject(e);else{if(!r.opListReadCapability)throw e;r.opListReadCapability.reject(e)}}})};s()}_abortOperatorList({intentState:e,reason:t,force:r=!1}){if((0,_util.assert)(t instanceof Error||"object"==typeof t&&null!==t,'PDFPageProxy._abortOperatorList: Expected "reason" argument.'),e.streamReader){if(!r){if(0!==e.renderTasks.length)return;if(t instanceof _display_utils.RenderingCancelledException)return void(e.streamReaderCancelTimeout=setTimeout(()=>{this._abortOperatorList({intentState:e,reason:t,force:!0}),e.streamReaderCancelTimeout=null},RENDERING_CANCELLED_TIMEOUT))}e.streamReader.cancel(new _util.AbortException(t&&t.message)),e.streamReader=null,this._transport.destroyed||(Object.keys(this.intentStates).some(t=>this.intentStates[t]===e&&(delete this.intentStates[t],!0)),this.cleanup())}}get stats(){return this._stats}}exports.PDFPageProxy=PDFPageProxy;class LoopbackPort{constructor(e=!0){this._listeners=[],this._defer=e,this._deferred=Promise.resolve(void 0)}postMessage(e,t){if(!this._defer)return void this._listeners.forEach(t=>{t.call(this,{data:e})});const r=new WeakMap,s={data:function e(s){if("object"!=typeof s||null===s)return s;if(r.has(s))return r.get(s);let n,i;if((n=s.buffer)&&(0,_util.isArrayBuffer)(n)){return i=t&&t.includes(n)?new s.constructor(n,s.byteOffset,s.byteLength):new s.constructor(s),r.set(s,i),i}i=Array.isArray(s)?[]:{},r.set(s,i);for(const t in s){let r,n=s;for(;!(r=Object.getOwnPropertyDescriptor(n,t));)n=Object.getPrototypeOf(n);if(void 0!==r.value)if("function"!=typeof r.value)i[t]=e(r.value);else if(s.hasOwnProperty&&s.hasOwnProperty(t))throw new Error("LoopbackPort.postMessage - cannot clone: "+s[t])}return i}(e)};this._deferred.then(()=>{this._listeners.forEach(e=>{e.call(this,s)})})}addEventListener(e,t){this._listeners.push(t)}removeEventListener(e,t){const r=this._listeners.indexOf(t);this._listeners.splice(r,1)}terminate(){this._listeners.length=0}}exports.LoopbackPort=LoopbackPort;const PDFWorker=function PDFWorkerClosure(){const pdfWorkerPorts=new WeakMap;let isWorkerDisabled=!1,fallbackWorkerSrc,nextFakeWorkerId=0,fakeWorkerCapability;if(_is_node.isNodeJS&&"function"==typeof require)isWorkerDisabled=!0,fallbackWorkerSrc="./pdf.worker.js";else if("object"==typeof document&&"currentScript"in document){const e=document.currentScript&&document.currentScript.src;e&&(fallbackWorkerSrc=e.replace(/(\.(?:min\.)?js)(\?.*)?$/i,".worker$1$2"))}function getWorkerSrc(){if(_worker_options.GlobalWorkerOptions.workerSrc)return _worker_options.GlobalWorkerOptions.workerSrc;if(void 0!==fallbackWorkerSrc)return _is_node.isNodeJS||(0,_display_utils.deprecated)('No "GlobalWorkerOptions.workerSrc" specified.'),fallbackWorkerSrc;throw new Error('No "GlobalWorkerOptions.workerSrc" specified.')}function getMainThreadWorkerMessageHandler(){let e;try{e=globalThis.pdfjsWorker&&globalThis.pdfjsWorker.WorkerMessageHandler}catch(e){}return e||null}function setupFakeWorkerGlobal(){if(fakeWorkerCapability)return fakeWorkerCapability.promise;fakeWorkerCapability=(0,_util.createPromiseCapability)();const loader=async function(){const mainWorkerMessageHandler=getMainThreadWorkerMessageHandler();if(mainWorkerMessageHandler)return mainWorkerMessageHandler;if(_is_node.isNodeJS&&"function"==typeof require){const worker=eval("require")(getWorkerSrc());return worker.WorkerMessageHandler}return await(0,_display_utils.loadScript)(getWorkerSrc()),window.pdfjsWorker.WorkerMessageHandler};return loader().then(fakeWorkerCapability.resolve,fakeWorkerCapability.reject),fakeWorkerCapability.promise}function createCDNWrapper(e){const t="importScripts('"+e+"');";return URL.createObjectURL(new Blob([t]))}class PDFWorker{constructor({name:e=null,port:t=null,verbosity:r=(0,_util.getVerbosityLevel)()}={}){if(t&&pdfWorkerPorts.has(t))throw new Error("Cannot use more than one PDFWorker per port");if(this.name=e,this.destroyed=!1,this.postMessageTransfers=!0,this.verbosity=r,this._readyCapability=(0,_util.createPromiseCapability)(),this._port=null,this._webWorker=null,this._messageHandler=null,t)return pdfWorkerPorts.set(t,this),void this._initializeFromPort(t);this._initialize()}get promise(){return this._readyCapability.promise}get port(){return this._port}get messageHandler(){return this._messageHandler}_initializeFromPort(e){this._port=e,this._messageHandler=new _message_handler.MessageHandler("main","worker",e),this._messageHandler.on("ready",(function(){})),this._readyCapability.resolve()}_initialize(){if("undefined"!=typeof Worker&&!isWorkerDisabled&&!getMainThreadWorkerMessageHandler()){let e=getWorkerSrc();try{(0,_util.isSameOrigin)(window.location.href,e)||(e=createCDNWrapper(new URL(e,window.location).href));const t=new Worker(e),r=new _message_handler.MessageHandler("main","worker",t),s=()=>{t.removeEventListener("error",n),r.destroy(),t.terminate(),this.destroyed?this._readyCapability.reject(new Error("Worker was destroyed")):this._setupFakeWorker()},n=()=>{this._webWorker||s()};t.addEventListener("error",n),r.on("test",e=>{t.removeEventListener("error",n),this.destroyed?s():e?(this._messageHandler=r,this._port=t,this._webWorker=t,e.supportTransfers||(this.postMessageTransfers=!1),this._readyCapability.resolve(),r.send("configure",{verbosity:this.verbosity})):(this._setupFakeWorker(),r.destroy(),t.terminate())}),r.on("ready",e=>{if(t.removeEventListener("error",n),this.destroyed)s();else try{i()}catch(e){this._setupFakeWorker()}});const i=()=>{const e=new Uint8Array([this.postMessageTransfers?255:0]);try{r.send("test",e,[e.buffer])}catch(t){(0,_util.warn)("Cannot use postMessage transfers."),e[0]=0,r.send("test",e)}};return void i()}catch(e){(0,_util.info)("The worker has been disabled.")}}this._setupFakeWorker()}_setupFakeWorker(){isWorkerDisabled||((0,_util.warn)("Setting up fake worker."),isWorkerDisabled=!0),setupFakeWorkerGlobal().then(e=>{if(this.destroyed)return void this._readyCapability.reject(new Error("Worker was destroyed"));const t=new LoopbackPort;this._port=t;const r="fake"+nextFakeWorkerId++,s=new _message_handler.MessageHandler(r+"_worker",r,t);e.setup(s,t);const n=new _message_handler.MessageHandler(r,r+"_worker",t);this._messageHandler=n,this._readyCapability.resolve(),n.send("configure",{verbosity:this.verbosity})}).catch(e=>{this._readyCapability.reject(new Error(`Setting up fake worker failed: "${e.message}".`))})}destroy(){this.destroyed=!0,this._webWorker&&(this._webWorker.terminate(),this._webWorker=null),pdfWorkerPorts.delete(this._port),this._port=null,this._messageHandler&&(this._messageHandler.destroy(),this._messageHandler=null)}static fromPort(e){if(!e||!e.port)throw new Error("PDFWorker.fromPort - invalid method signature.");return pdfWorkerPorts.has(e.port)?pdfWorkerPorts.get(e.port):new PDFWorker(e)}static getWorkerSrc(){return getWorkerSrc()}}return PDFWorker}();exports.PDFWorker=PDFWorker;class WorkerTransport{constructor(e,t,r,s){this.messageHandler=e,this.loadingTask=t,this.commonObjs=new PDFObjects,this.fontLoader=new _font_loader.FontLoader({docId:t.docId,onUnsupportedFeature:this._onUnsupportedFeature.bind(this)}),this._params=s,this.CMapReaderFactory=new s.CMapReaderFactory({baseUrl:s.cMapUrl,isCompressed:s.cMapPacked}),this.destroyed=!1,this.destroyCapability=null,this._passwordCapability=null,this._networkStream=r,this._fullReader=null,this._lastProgress=null,this.pageCache=[],this.pagePromises=[],this.downloadInfoCapability=(0,_util.createPromiseCapability)(),this.setupMessageHandler()}destroy(){if(this.destroyCapability)return this.destroyCapability.promise;this.destroyed=!0,this.destroyCapability=(0,_util.createPromiseCapability)(),this._passwordCapability&&this._passwordCapability.reject(new Error("Worker was destroyed during onPassword callback"));const e=[];this.pageCache.forEach((function(t){t&&e.push(t._destroy())})),this.pageCache.length=0,this.pagePromises.length=0;const t=this.messageHandler.sendWithPromise("Terminate",null);return e.push(t),Promise.all(e).then(()=>{this.fontLoader.clear(),this._networkStream&&this._networkStream.cancelAllRequests(new _util.AbortException("Worker was terminated.")),this.messageHandler&&(this.messageHandler.destroy(),this.messageHandler=null),this.destroyCapability.resolve()},this.destroyCapability.reject),this.destroyCapability.promise}setupMessageHandler(){const{messageHandler:e,loadingTask:t}=this;e.on("GetReader",(e,t)=>{(0,_util.assert)(this._networkStream,"GetReader - no `IPDFStream` instance available."),this._fullReader=this._networkStream.getFullReader(),this._fullReader.onProgress=e=>{this._lastProgress={loaded:e.loaded,total:e.total}},t.onPull=()=>{this._fullReader.read().then((function({value:e,done:r}){r?t.close():((0,_util.assert)((0,_util.isArrayBuffer)(e),"GetReader - expected an ArrayBuffer."),t.enqueue(new Uint8Array(e),1,[e]))})).catch(e=>{t.error(e)})},t.onCancel=e=>{this._fullReader.cancel(e)}}),e.on("ReaderHeadersReady",e=>{const r=(0,_util.createPromiseCapability)(),s=this._fullReader;return s.headersReady.then(()=>{s.isStreamingSupported&&s.isRangeSupported||(this._lastProgress&&t.onProgress&&t.onProgress(this._lastProgress),s.onProgress=e=>{t.onProgress&&t.onProgress({loaded:e.loaded,total:e.total})}),r.resolve({isStreamingSupported:s.isStreamingSupported,isRangeSupported:s.isRangeSupported,contentLength:s.contentLength})},r.reject),r.promise}),e.on("GetRangeReader",(e,t)=>{(0,_util.assert)(this._networkStream,"GetRangeReader - no `IPDFStream` instance available.");const r=this._networkStream.getRangeReader(e.begin,e.end);r?(t.onPull=()=>{r.read().then((function({value:e,done:r}){r?t.close():((0,_util.assert)((0,_util.isArrayBuffer)(e),"GetRangeReader - expected an ArrayBuffer."),t.enqueue(new Uint8Array(e),1,[e]))})).catch(e=>{t.error(e)})},t.onCancel=e=>{r.cancel(e)}):t.close()}),e.on("GetDoc",({pdfInfo:e})=>{this._numPages=e.numPages,t._capability.resolve(new PDFDocumentProxy(e,this))}),e.on("DocException",(function(e){let r;switch(e.name){case"PasswordException":r=new _util.PasswordException(e.message,e.code);break;case"InvalidPDFException":r=new _util.InvalidPDFException(e.message);break;case"MissingPDFException":r=new _util.MissingPDFException(e.message);break;case"UnexpectedResponseException":r=new _util.UnexpectedResponseException(e.message,e.status);break;case"UnknownErrorException":r=new _util.UnknownErrorException(e.message,e.details)}t._capability.reject(r)})),e.on("PasswordRequest",e=>{if(this._passwordCapability=(0,_util.createPromiseCapability)(),t.onPassword){const r=e=>{this._passwordCapability.resolve({password:e})};try{t.onPassword(r,e.code)}catch(e){this._passwordCapability.reject(e)}}else this._passwordCapability.reject(new _util.PasswordException(e.message,e.code));return this._passwordCapability.promise}),e.on("DataLoaded",e=>{t.onProgress&&t.onProgress({loaded:e.length,total:e.length}),this.downloadInfoCapability.resolve(e)}),e.on("StartRenderPage",e=>{if(this.destroyed)return;this.pageCache[e.pageIndex]._startRenderPage(e.transparency,e.intent)}),e.on("commonobj",t=>{if(this.destroyed)return;const[r,s,n]=t;if(!this.commonObjs.has(r))switch(s){case"Font":const t=this._params;if("error"in n){const e=n.error;(0,_util.warn)("Error during font loading: "+e),this.commonObjs.resolve(r,e);break}let i=null;t.pdfBug&&globalThis.FontInspector&&globalThis.FontInspector.enabled&&(i={registerFont(e,t){globalThis.FontInspector.fontAdded(e,t)}});const a=new _font_loader.FontFaceObject(n,{isEvalSupported:t.isEvalSupported,disableFontFace:t.disableFontFace,ignoreErrors:t.ignoreErrors,onUnsupportedFeature:this._onUnsupportedFeature.bind(this),fontRegistry:i});this.fontLoader.bind(a).catch(t=>e.sendWithPromise("FontFallback",{id:r})).finally(()=>{!t.fontExtraProperties&&a.data&&(a.data=null),this.commonObjs.resolve(r,a)});break;case"FontPath":case"FontType3Res":case"Image":this.commonObjs.resolve(r,n);break;default:throw new Error("Got unknown common object type "+s)}}),e.on("obj",e=>{if(this.destroyed)return;const[t,r,s,n]=e,i=this.pageCache[r];if(!i.objs.has(t))switch(s){case"Image":i.objs.resolve(t,n);const e=8e6;n&&"data"in n&&n.data.length>e&&(i.cleanupAfterRender=!0);break;default:throw new Error("Got unknown object type "+s)}}),e.on("DocProgress",e=>{this.destroyed||t.onProgress&&t.onProgres