Notes

<script src="https://unpkg.com/pdf-lib"></script>
<script>
async function mergeAndPrintPDF(pdfUrls, imageUrls) {
const { PDFDocument } = PDFLib;

const mergedPdf = await PDFDocument.create();

// Load PDFs and add their pages to the merged PDF
for (let pdfUrl of pdfUrls) {
const existingPdfBytes = await fetch(pdfUrl).then(res => res.arrayBuffer());
const existingPdf = await PDFDocument.load(existingPdfBytes);
const copiedPages = await mergedPdf.copyPages(existingPdf, existingPdf.getPageIndices());
copiedPages.forEach((page) => mergedPdf.addPage(page));
}

// Load images and add them to the merged PDF
for (let imageUrl of imageUrls) {
const imgBytes = await fetch(imageUrl).then(res => res.arrayBuffer());
const img = await mergedPdf.embedJpg(imgBytes); // or embedPng for PNG images
const page = mergedPdf.addPage([img.width, img.height]);
page.drawImage(img, {
x: 0,
y: 0,
width: img.width,
height: img.height,
});
}

const mergedPdfBytes = await mergedPdf.save();

const blob = new Blob([mergedPdfBytes], { type: 'application/pdf' });
const blobUrl = URL.createObjectURL(blob);

// Open the merged PDF in a new window and print it
const printWindow = window.open(blobUrl, '_blank');
printWindow.onload = function() {
printWindow.print();
URL.revokeObjectURL(blobUrl); // Clean up the URL object
};
}

// Example usage
document.getElementById('printDocument').addEventListener('click', function() {
let pdfUrls = [
'path/to/pdf1.pdf',
'path/to/pdf2.pdf',
// more PDFs
];
let imageUrls = [
'path/to/image1.jpg',
'path/to/image2.png',
// more images
];

mergeAndPrintPDF(pdfUrls, imageUrls);
});
</script>