Convert Excel file to PDF format compatible with PDF/A-1a with JavaScript via C++
Possible Usage Scenarios
PDF/A is a unique flavor of PDF designed for the long-term preservation of documents. PDF/A is an ISO-standardized version of the Portable Document Format (PDF) which is an archival format of PDF that embeds all fonts used in the document within the PDF file. PDF/A differs from PDF by prohibiting features, such as font linking (as opposed to font embedding) and encryption. Aspose.Cells for JavaScript via C++ enables you to save the Excel files to PDF/A compliant PDF files (PDF/A-1a, PDF/A-1b, PDF/A-2a, PDF/A-2b, PDF/A-2u, PDF/A-3a, PDF/A-2ab, and PDF/A-3u are supported). This topic describes how to save the Excel workbook to PDF/A compliant (PDF/A-1a) PDF file.
Convert Excel file to PDF Format Compatible with PDF/A-1a
Developers may use the PdfSaveOptions class to set different attributes for the conversion. Setting different properties of the PdfSaveOptions class gives you control over the print, font, security and compression settings for the output PDF. The most important property is PdfSaveOptions.compliance that enables you to save the Excel files to PDF/A compliant PDF files.
The following sample code explains how to convert an Excel file to PDF format compatible with PDF/A-1a. Please see its output PDF as well as the screenshot for reference.
Screenshot
Sample Code
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Export to PDF (PDFA-1a) Example</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
<button id="runExample">Run Example</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat, Utils } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
document.getElementById('runExample').addEventListener('click', async () => {
// Create workbook object
const wb = new Workbook();
// Access first worksheet
const ws = wb.worksheets.get(0);
// Access cell B5 and add some message inside it
const cell = ws.cells.get("B5");
cell.value = "This PDF format is compatible with PDFA-1a.";
// Create pdf save options and set its compliance to PDFA-1a
const opts = new AsposeCells.PdfSaveOptions();
opts.compliance = AsposeCells.PdfCompliance.PdfA1a;
// Save the output pdf
const outputData = wb.save(SaveFormat.Pdf, opts);
const blob = new Blob([outputData], { type: "application/pdf" });
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outputCompliancePdfA1a.pdf';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download PDF File';
document.getElementById('result').innerHTML = '<p style="color: green;">PDF generated successfully! Click the download link to get the file.</p>';
});
</script>
</html>