在使用JavaScript通过C++转换为PDF时导出文档结构
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PDF的逻辑结构功能提供了一种将关于文档内容结构的信息集成到PDF文件中的机制。Aspose.Cells for Java脚本通过C++保留了Microsoft Excel文档中的结构信息，如单元格、行、表格、工作表、图片、形状、页眉/页脚等。
使用PdfSaveOptions.exportDocumentStructure()选项可以导出结构信息的带标签PDF。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example - Export PDF with Document Structure</title>
</head>
<body>
<h1>Export PDF with Document Structure</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, PdfSaveOptions, 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 () => {
const fileInput = document.getElementById('fileInput');
if (!fileInput.files.length) {
document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Instantiating a Workbook object by opening the Excel file from the file input
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Set to export document structure.
const pdfSaveOptions = new PdfSaveOptions();
pdfSaveOptions.exportDocumentStructure = true;
// Save the pdf file with PdfSaveOptions
const outputData = workbook.save(SaveFormat.Pdf, pdfSaveOptions);
const blob = new Blob([outputData], { type: 'application/pdf' });
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'output.pdf';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download PDF File';
document.getElementById('result').innerHTML = '<p style="color: green;">PDF exported successfully! Click the download link to get the PDF file.</p>';
});
</script>
</html>