使用JavaScript via C++将每个工作表保存为不同的PDF文件
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Aspose.Cells支持将包含图片、图表等的XLS文件转换为PDF文档。Aspose.Cells for JavaScript通过C++可以独立将电子表格转换为PDF，您无需使用Aspose.PDF for JavaScript via C++进行转换。转换过程中无需创建或使用任何临时文件，整个过程可以在内存中完成。
将每个工作表保存为不同的PDF文件
如果您需要将模板 Excel 文件中的每个工作表保存为不同的 PDF 文件，您可以轻松实现。可以尝试每次设置一个工作表索引为 PdfSaveOptions.SheetSet 选项进行渲染到 PDF。
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example - Export Each Worksheet to PDF</title>
</head>
<body>
<h1>Export Each Worksheet to PDF</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, PdfSaveOptions, SheetSet, SaveFormat } = 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');
const resultDiv = document.getElementById('result');
const mainDownloadLink = document.getElementById('downloadLink');
resultDiv.innerHTML = '';
mainDownloadLink.style.display = 'none';
mainDownloadLink.href = '';
mainDownloadLink.textContent = '';
if (!fileInput.files.length) {
resultDiv.innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Instantiate a new workbook and open the Excel file from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Get the count of the worksheets in the workbook
const sheetCount = workbook.worksheets.count;
// Prepare container for links
const linksContainer = document.createElement('div');
for (let j = 0; j < sheetCount; j++) {
const ws = workbook.worksheets.get(j);
// set worksheet to output
const sheetSet = new SheetSet([ws.index]);
const pdfSaveOptions = new PdfSaveOptions();
pdfSaveOptions.sheetSet = sheetSet;
// Save current worksheet as PDF
const outputData = workbook.save(SaveFormat.Pdf, pdfSaveOptions);
const blob = new Blob([outputData], { type: 'application/pdf' });
const fileName = `worksheet-${ws.name}.out.pdf`;
const url = URL.createObjectURL(blob);
const link = document.createElement('a');
link.href = url;
link.download = fileName;
link.textContent = `Download ${fileName}`;
link.style.display = 'block';
linksContainer.appendChild(link);
// For the first generated PDF, also set the main download link element
if (j === 0) {
mainDownloadLink.href = url;
mainDownloadLink.download = fileName;
mainDownloadLink.style.display = 'block';
mainDownloadLink.textContent = `Download ${fileName}`;
}
}
resultDiv.innerHTML = `<p style="color: green;">Generated ${sheetCount} PDF file(s). Use the links below to download them.</p>`;
resultDiv.appendChild(linksContainer);
});
</script>
</html>
如果您的电子表格包含公式，最好在将电子表格呈现为PDF格式之前调用 Workbook.calculateFormula()。这样做将确保重新计算依赖于公式的值，并在PDF中呈现正确的值。