56 lines
1.8 KiB
HTML
56 lines
1.8 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Document</title>
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</head>
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<body>
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<button onclick="handlePrint()">打印</button>
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<script src="./node_modules/print-js/dist/print.js"></script>
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<script src="./node_modules/pdf-lib/dist/pdf-lib.js"></script>
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<script>
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async function handlePrint() {
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const pdfUrls = [
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"./assets/test.pdf",
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"./assets/test.pdf",
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"./assets/test.pdf",
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];
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const url = await mergePDFs(pdfUrls);
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// 调用打印功能，无需打开文件再手动打印
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printJS(url);
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}
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// 批量打印与分页打印
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async function mergePDFs(pdfUrls) {
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// 创建一个新的空白PDF文档
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const mergedPdfDoc = await PDFLib.PDFDocument.create();
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for (const pdfUrl of pdfUrls) {
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// 获取PDF文件的二进制数据
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const pdfBytes = await fetch(pdfUrl).then((response) =>
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response.arrayBuffer()
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);
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// 将获取到的PDF文件添加到新的文档中
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const pdfDoc = await PDFLib.PDFDocument.load(pdfBytes);
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// 如果单个PDF为多页，则要一页一页往新建的PDF中添加
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const copiedPages = await mergedPdfDoc.copyPages(
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pdfDoc,
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pdfDoc.getPageIndices()
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);
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copiedPages.forEach((page) => mergedPdfDoc.addPage(page));
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}
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// 将合并后的PDF保存为Blob对象
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const mergedPdfBytes = await mergedPdfDoc.save();
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const mergedPdfBlob = new Blob([mergedPdfBytes], {
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type: "application/pdf",
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});
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return URL.createObjectURL(mergedPdfBlob);
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}
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</script>
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</body>
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</html>
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