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OleksandrAndriienkoOleksandrAndriienko
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Aspose.PDF for JavaScript via C++ 24.5
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‎AsposePDFforJS.js‎

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‎AsposePDFforJS.wasm.zip‎

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‎example.html‎

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@@ -122,6 +122,10 @@ <h2>Aspose.PDF for JavaScript via C++</h2>
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<label for="fileExportXml">EXPORT XML<span class="tooltip">Export from a PDF-file with AcroForm to XML</span></label>
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<input type="file" id="fileExportXml" accept="application/pdf" onchange="ffileExportXml(event)">
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</div>
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<div class="column">
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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>
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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 ffileToPDF = 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 = AsposePdfPagesToPDF(event.target.result, e.target.files[0].name, "ResultPdfToPDF{0:D2}.pdf");
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if (json.errorCode == 0) {
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document.getElementById('output').textContent = "Files(pages) count: " + json.filesCount.toString();
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for (let fileIndex = 0; fileIndex < json.filesCount; fileIndex++) DownloadFile(json.filesNameResult[fileIndex], "application/pdf");
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}
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else document.getElementById('output').textContent = json.errorText;
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}
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file_reader.readAsArrayBuffer(e.target.files[0]);
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}
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</script>
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‎example_worker.html‎

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<option value="AsposePdfPagesToDICOM">Convert a PDF-file to DICOM</option>
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<option value="AsposePdfPagesToSvg">Convert a PDF-file to SVG</option>
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<option value="AsposePdfPagesToSvgZip">Convert a PDF-file to SVG(zip)</option>
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<option value="AsposePdfPagesToPDF">Convert a PDF-file to PDF (separate pages)</option>
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<option value="AsposePdfToTeX">Convert a PDF-file to TeX</option>
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<option value="AsposePdfToXps">Convert a PDF-file to Xps</option>
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<option value="AsposePdfTablesToCSV">Convert a PDF-file to CSV (extract tables)</option>
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case 'AsposePdfExportXml':
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DownloadFile(json.fileNameResult, "application/xml", params[0]);
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break;
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case 'AsposePdfPagesToPDF':
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document.getElementById('output').textContent = "Files(pages) count: " + json.filesCount.toString();
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for (let fileIndex = 0; fileIndex < json.filesCount; fileIndex++)
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DownloadFile(json.filesNameResult[fileIndex], "application/pdf", params[fileIndex]);
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break;
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default:
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// AsposePdfAConvertToPDF, AsposePdfAddBackgroundImage, AsposePdfAddImage, AsposePdfAddPageNum,
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// AsposePdfAddStamp, AsposePdfAddTextHeaderFooter, AsposePdfConvertToGrayscale, AsposePdfDecrypt,
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transfer = [event.target.result];
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params = [event.target.result, ffile.name, findFont, replaceFont, `Result${operation}.pdf`];
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break;
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case 'AsposePdfPagesToPDF':
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const template_pdf = `Result${operation}{0:D2}.pdf`; //result filename template
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transfer = [event.target.result];
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params = [event.target.result, ffile.name, template_pdf];
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break;
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default:
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// AsposePdfOptimize, AsposePdfAddPageNum, AsposePdfConvertToGrayscale, AsposePdfAConvertToPDF,
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// AsposePdfRemoveMetadata, AsposePdfRepair, AsposePdfOptimizeResource, AsposePdfDeleteAnnotations,

‎snippets/AsposePdfPagesToPDF.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="fileToPDF">Choose a PDF-file to convert to PDF (separate pages)</label>
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<input type="file" id="fileToPDF" accept="application/pdf" onchange="ffileToPDF(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 ffileToPDF = 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 separate PDF pages with template "ResultPdfToPDF{0:D2}.pdf" ({0}, {0:D2}, {0:D3}, ... format page number) and save*/
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const json = AsposePdfPagesToPDF(event.target.result, e.target.files[0].name, "ResultPdfToPDF{0:D2}.pdf");
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if (json.errorCode == 0) {
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document.getElementById('output').textContent = "Files(pages) count: " + json.filesCount.toString();
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/*Make links to result files*/
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for (let fileIndex = 0; fileIndex < json.filesCount; fileIndex++) DownloadFile(json.filesNameResult[fileIndex], "application/pdf");
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}
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else document.getElementById('output').textContent = json.errorText;
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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/AsposePdfPagesToPDF_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="fileToPDF">Choose a PDF-file to convert to PDF (separate pages)</label>
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<input type="file" id="fileToPDF" accept="application/pdf" onchange="ffileToPDF(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) ?
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`Files(pages) count: ${evt.data.json.filesCount.toString()}\n${evt.data.params.forEach(
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(element, index) => DownloadFile(evt.data.json.filesNameResult[index], "application/pdf", element) ) ?? ""}` :
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`Error: ${evt.data.json.errorText}`;
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/*Event handler*/
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const ffileToPDF = 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 separate PDF pages with template "ResultPdfToPDF{0:D2}.pdf" ({0}, {0:D2}, {0:D3}, ... format page number) and save - Ask Web Worker*/
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AsposePDFWebWorker.postMessage({ "operation": 'AsposePdfPagesToPDF', "params": [event.target.result, e.target.files[0].name, "ResultPdfToPDF{0:D2}.pdf"] }, [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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