merge multiple base64 format PDFs into single PDF File Object

merge-pdf.ts

import { PDFDocument } from 'pdf-lib';

async mergeMultiplgePdf(base64Pdfs: string[]): Promise<File> {
  const pdfDoc = await PDFDocument.create();

  for (base64Pdf of base64Pdfs) {
    const url = `data:application/pdf;base64,${base64Pdf}`;
    const donorPdfBytes = await fetch(url).then((res) => res.arrayBuffer());
    const donorPdfDoc = await PDFDocument.load(donorPdfBytes);

    for (var k = 0; k < donorPdfDoc.getPageCount(); k++) {
      const [donorPage] = await pdfDoc.copyPages(donorPdfDoc, [k]);
      pdfDoc.addPage(donorPage);
    }
  }

  const mergedPdf = await pdfDoc.save();

  return new File([mergedPdf], 'merged.pdf');
}

Hey did you find a solution