​
Installation

To install PDF-Lib, run the following command:
Terminal
pnpm add pdf-lib

​
Usage

Here’s an example of how to use PDF-Lib to create a simple PDF document:
create-pdf.tsx
import { PDFDocument, rgb, StandardFonts } from 'pdf-lib';

async function createPDF() {
  // Create a new PDFDocument
  const pdfDoc = await PDFDocument.create();
  
  // Add a blank page to the document
  const page = pdfDoc.addPage([550, 750]);
  
  // Get the standard font
  const font = await pdfDoc.embedFont(StandardFonts.Helvetica);
  
  // Draw some text on the page
  page.drawText('Hello World!', {
    x: 50,
    y: 700,
    size: 30,
    font,
    color: rgb(0, 0.53, 0.71),
  });
  
  // Serialize the PDFDocument to bytes
  const pdfBytes = await pdfDoc.save();
  
  // Create a blob from the bytes
  const blob = new Blob([pdfBytes], { type: 'application/pdf' });
  
  // Create a URL for the blob
  const url = URL.createObjectURL(blob);
  
  // Open the PDF in a new tab
  window.open(url);
}
You can also modify existing PDFs:
modify-pdf.tsx
import { PDFDocument } from 'pdf-lib';

async function modifyPDF(existingPdfBytes) {
  // Load the existing PDF
  const pdfDoc = await PDFDocument.load(existingPdfBytes);
  
  // Add a new page
  const page = pdfDoc.addPage([550, 750]);
  
  // Get the font
  const font = await pdfDoc.embedFont(StandardFonts.Helvetica);
  
  // Add content to the new page
  page.drawText('This page was added with pdf-lib!', {
    x: 50,
    y: 700,
    size: 24,
    font,
  });
  
  // Save the modified PDF
  const modifiedPdfBytes = await pdfDoc.save();
  return modifiedPdfBytes;
}

​
Benefits

  • Pure JavaScript: Works in any JavaScript environment (Node.js, browsers, React Native).
  • No Dependencies: Zero dependencies on native libraries or external tools.
  • Feature Rich: Create, modify, and extract content from PDFs with a simple API.
  • TypeScript Support: Fully typed API for better developer experience.
For more information and detailed documentation, visit the PDF-Lib GitHub repository.