// Embed a font, set size, and render text doc.font('fonts/PalatinoBold.ttf') .fontSize(25) .text('Some text with an embedded font!', 100, 100);
const PDFDocument = require('pdf-lib'); const fs = require('fs'); async function mergeFiles(pdfBuffer1, pdfBuffer2, outputPath) const mergedPdf = await PDFDocument.create(); // Load the individual documents const doc1 = await PDFDocument.load(pdfBuffer1); const doc2 = await PDFDocument.load(pdfBuffer2); // Copy pages from both documents into the new merged file const pages1 = await mergedPdf.copyPages(doc1, doc1.getPageIndices()); const pages2 = await mergedPdf.copyPages(doc2, doc2.getPageIndices()); // Add copied pages sequentially pages1.forEach(page => mergedPdf.addPage(page)); pages2.forEach(page => mergedPdf.addPage(page)); // Save changes and output as a single file const mergedPdfBytes = await mergedPdf.save(); fs.writeFileSync(outputPath, mergedPdfBytes); Use code with caution. javascript pdf course
Create legally binding, tamper-evident digital contracts with embedded signatures. // Embed a font, set size, and render text doc
This comprehensive guide serves as your definitive JavaScript PDF course, taking you from fundamental concepts to advanced production techniques. 1. The Core Architecture of PDF Files merge two documents
The go-to for modifying existing PDFs . If you need to fill out form fields, merge two documents, or add a watermark to an uploaded file, PDF-lib is the most robust choice.