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OleksandrAndriienkoOleksandrAndriienko
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Aspose.PDF for JavaScript via C++ 25.7
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‎AsposePDFforJS.js‎

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‎AsposePDFforJS.wasm.zip‎

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‎README.md‎

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@@ -20,7 +20,7 @@ Add PDF processing, manipulation, and conversion features to your front-end appl
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- **Office formats:** DOC, DOCX, XLS, XLSX, PPTX
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- **Web formats:** SVG, SVG (ZIP), XPS, EPUB
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- **Image formats:** JPEG, PNG, BMP, TIFF, DICOM
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- **Other formats:** Grayscale PDF, PDF/A, TeX, TXT
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- **Other formats:** Grayscale PDF, PDF/A, TeX, TXT, Markdown
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- **Manipulate** PDF structure and content:
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- Bookmarks, hyperlinks, annotations, attachments, JavaScript
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- Fonts, metadata, layers, background color

‎example.html‎

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@@ -126,6 +126,10 @@ <h2>Aspose.PDF for JavaScript via C++</h2>
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<label for="fileToPDF">PDF<span class="tooltip">Convert a PDF-file to PDF (separate pages)</span></label>
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<input type="file" id="fileToPDF" accept="application/pdf" onchange="ffileToPDF(event)">
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</div>
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<div class="column">
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<label for="fileToMarkdown">MD<span class="tooltip">Convert a PDF-file to Markdown</span></label>
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<input type="file" id="fileToMarkdown" accept="application/pdf" onchange="ffileToMarkdown(event)">
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</div>
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</div>
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</div>
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file_reader.readAsArrayBuffer(e.target.files[0]);
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}
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var ffileToMarkdown= function (e) {
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const file_reader = new FileReader();
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file_reader.onload = (event) => {
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const json = AsposePdfToMarkdown(event.target.result, e.target.files[0].name, "ResultPDFtoMarkdown.md");
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if (json.errorCode == 0) document.getElementById('output').textContent = json.fileNameResult;
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else document.getElementById('output').textContent = json.errorText;
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DownloadFile(json.fileNameResult, "text/markdown");
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}
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file_reader.readAsArrayBuffer(e.target.files[0]);
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}
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var ffilePdfValidatePDFA = function (e) {
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const file_reader = new FileReader();
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file_reader.onload = (event) => {

‎example_worker.html‎

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<option value="AsposePdfToEPUB">Convert a PDF-file to ePub</option>
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<option value="AsposePdfToDoc">Convert a PDF-file to Doc</option>
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<option value="AsposePdfToPptX">Convert a PDF-file to PptX</option>
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<option value="AsposePdfToMarkdown">Convert a PDF-file to Markdown</option>
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<option value="AsposePdfExtractText" selected>Extract text from a PDF-file</option>
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<option value="AsposePdfExtractImage">Extract image from a PDF-file</option>
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<option value="AsposePdfExportFdf">Export from a PDF-file with AcroForm to FDF</option>
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case 'AsposePdfToTxt':
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DownloadFile(json.fileNameResult, "text/plain", params[0]);
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break;
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case 'AsposePdfToMarkdown':
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DownloadFile(json.fileNameResult, "text/markdown", params[0]);
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break;
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case 'AsposePdfTablesToCSV':
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document.getElementById('output').textContent = "Files(tables) count: " + json.filesCount.toString();
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for (let fileIndex = 0; fileIndex < json.filesCount; fileIndex++)
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transfer = [event.target.result];
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params = [event.target.result, ffile.name, `Result${operation}.txt`];
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break;
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case 'AsposePdfToMarkdown':
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transfer = [event.target.result];
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params = [event.target.result, ffile.name, `Result${operation}.md`];
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break;
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case 'AsposePdfToEPUB':
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transfer = [event.target.result];
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params = [event.target.result, ffile.name, `Result${operation}.epub`];

‎snippets/AsposePdfToMarkdown.html‎

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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta charset="UTF-8">
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<title>Aspose.PDF for JavaScript via C++</title>
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</head>
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<body>
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<label for="fileToMarkdown">Choose a PDF-file to convert to Markdown</label>
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<input type="file" id="fileToMarkdown" accept="application/pdf" onchange="ffileToMarkdown(event)">
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<br>
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<pre id="output"></pre>
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</body>
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<!-- Load and initiate Aspose.PDF for JavaScript via C++ -->
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<script type="text/javascript" async src="AsposePDFforJS.js"></script>
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<script type="text/javascript">
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/// [Code snippet]
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var ffileToMarkdown = function (e) {
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const file_reader = new FileReader();
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file_reader.onload = (event) => {
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/*Convert a PDF-file to Markdown and save the "ResultPDFtoMarkdown.md"*/
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const json = AsposePdfToMarkdown(event.target.result, e.target.files[0].name, "ResultPDFtoMarkdown.md");
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if (json.errorCode == 0) document.getElementById('output').textContent = json.fileNameResult
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else document.getElementById('output').textContent = json.errorText;
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/*Make a link to download the result file*/
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DownloadFile(json.fileNameResult, "text/markdown");
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}
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file_reader.readAsArrayBuffer(e.target.files[0]);
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}
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/// [Code snippet]
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</script>
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</html>

‎snippets/AsposePdfToMarkdown_worker.html‎

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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta charset="UTF-8">
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<title>Aspose.PDF for JavaScript via C++</title>
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</head>
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<body>
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<label for="fileToMarkdown">Choose a PDF-file to convert to Markdown</label>
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<input type="file" id="fileToMarkdown" accept="application/pdf" onchange="ffileToMarkdown(event)">
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<br>
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<pre id="output">please wait for loading...</pre>
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</body>
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<script type="text/javascript">
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/// [Code snippet]
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/*Create Web Worker*/
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const AsposePDFWebWorker = new Worker("AsposePDFforJS.js");
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AsposePDFWebWorker.onerror = evt => console.log(`Error from Web Worker: ${evt.message}`);
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AsposePDFWebWorker.onmessage = evt => document.getElementById('output').textContent =
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(evt.data == 'ready') ? 'loaded!' :
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(evt.data.json.errorCode == 0) ? `Result:\n${DownloadFile(evt.data.json.fileNameResult, "text/markdown", evt.data.params[0])}` : `Error: ${evt.data.json.errorText}`;
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/*Event handler*/
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const ffileToMarkdown = e => {
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const file_reader = new FileReader();
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file_reader.onload = event => {
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/*Convert a PDF-file to Markdown and save the "ResultPDFtoMarkdown.md" - Ask Web Worker*/
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AsposePDFWebWorker.postMessage({ "operation": 'AsposePdfToMarkdown', "params": [event.target.result, e.target.files[0].name, "ResultPDFtoMarkdown.md"] }, [event.target.result]);
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};
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file_reader.readAsArrayBuffer(e.target.files[0]);
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};
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/// [Code snippet]
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/*Make a link to download the result file*/
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const DownloadFile = (filename, mime, content) => {
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mime = mime || "application/octet-stream";
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var link = document.createElement("a");
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link.href = URL.createObjectURL(new Blob([content], {type: mime}));
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link.download = filename;
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link.innerHTML = "Click here to download the file " + filename;
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document.body.appendChild(link);
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document.body.appendChild(document.createElement("br"));
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return filename;
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}
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</script>
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</html>

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