Core

LibPDF

[](https://www.npmjs.com/package/@libpdf/core) [](https://www.npmjs.com/package/@libpdf/core) [](https://github.com/LibPDF-js/core/actions/workflows/ci.yml) [](https://github.com/LibPDF-js/core) [](LICENSE) [](https://www.typescriptlang.org/)

A modern PDF library for TypeScript. Parse, modify, and generate PDFs with a clean, intuitive API.

**Beta Software**: LibPDF is under active development and APIs may change between minor versions, but we use it in production at [Documenso](https://documenso.com) and consider it ready for real-world use.

Why LibPDF?

LibPDF was born from frustration. At [Documenso](https://documenso.com), we found ourselves wrestling with the JavaScript PDF ecosystem:

• PDF.js is excellent for rendering and even has annotation editing — but it requires a browser
• pdf-lib has a great API, but chokes on slightly malformed documents
• pdfkit only generates, no parsing at all

We kept adding workarounds. A patch here for a malformed xref table. A hack there for an encrypted document. Eventually, we decided to build what we actually needed:

• Lenient like PDFBox and PDF.js: opens documents other libraries reject
• Intuitive like pdf-lib: clean, TypeScript-first API
• Complete: encryption, digital signatures, incremental saves, form filling

Features

Feature	Status	Notes
Parse any PDF	Yes	Graceful fallback for malformed documents
Create PD