> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zopio.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# PDF-Lib

> A powerful JavaScript library for creating and modifying PDF documents in any JavaScript environment.

### Installation

To install PDF-Lib, run the following command:

```sh Terminal theme={"system"}
pnpm add pdf-lib
```

### Usage

Here's an example of how to use PDF-Lib to create a simple PDF document:

```tsx create-pdf.tsx theme={"system"}
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:

```tsx modify-pdf.tsx theme={"system"}
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

* <Icon icon="check" iconType="solid" /> **Pure JavaScript**: Works in any JavaScript environment (Node.js, browsers, React Native).
* <Icon icon="check" iconType="solid" /> **No Dependencies**: Zero dependencies on native libraries or external tools.
* <Icon icon="check" iconType="solid" /> **Feature Rich**: Create, modify, and extract content from PDFs with a simple API.
* <Icon icon="check" iconType="solid" /> **TypeScript Support**: Fully typed API for better developer experience.

For more information and detailed documentation, visit the [PDF-Lib GitHub repository](https://github.com/Hopding/pdf-lib).