LibPDF

LibPDF-js/core is a modern, TypeScript-first PDF processing library that provides a comprehensive toolkit for parsing, modifying, and generating PDF documents with a clean, intuitive API designed to handle real-world files safely and robustly. Unlike many existing JavaScript PDF libraries, it emphasizes lenient parsing that can gracefully handle malformed structures and fallback strategies where typical parsers fail, making it useful for production environments that encounter unpredictable file formats. The library offers full read and write manipulation, including support for encryption with RC4 and modern AES cipher suites, form filling and flattening, digital signature creation and verification, page merging/splitting, rich text extraction with layout information, and font embedding with subsetting.

Features

Parse and recover from malformed PDFs
Create, modify, merge, and split PDF files
Encryption and decryption support with AES/RC4
Digital signatures and incremental saves
Form field manipulation and flattening
TypeScript-first API with strong type safety

Project Samples

Project Activity

See All Activity >

License

MIT License

Follow LibPDF

LibPDF Web Site

Other Useful Business Software

Build Securely on AWS with Proven Frameworks

Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.

Download Now

Rate This Project

User Reviews

Be the first to post a review of LibPDF!

Additional Project Details

Programming Language

TypeScript

Related Categories

TypeScript Libraries

Registered

2026-02-10

Similar Business Software

DHTMLX

DHTMLX is a JavaScript UI library that provides a set of highly customizable and flexible components for building modern and responsive web applications. The library includes more than 30 UI components, such as Gantt, Scheduler, Kanban, diagrams, charts, grids, spreadsheets, calendars, trees,...

See Software
Webix

JavaScript UI library and framework for speeding up web development. JS Framework for cross-platform web Apps development 102 UI widgets and feature-rich CSS / HTML5 JavaScript controls. Save at least 3000+ development hours by using ready-made widgets and UI controls. Develop Web UI 30% faster....

See Software
FusionCharts

FusionCharts is a powerful and easy-to-use JavaScript charting library that helps developers to add interactive charts and data visualizations to their web and mobile applications. With 100+ chart types, including column, bar, line, area, pie, doughnut, scatter, bubble, and more, it's easy to...

See Software
Kendo UI

Kendo UI is the ultimate collection of JavaScript UI components with libraries for jQuery, Angular, React, and Vue. Quickly build eye-catching, high-performance, responsive web applications—regardless of your JavaScript framework choice. Easily add advanced JavaScript components into your...

See Software
Moment.js

A JavaScript date library for parsing, validating, manipulating, and formatting dates. Moment was designed to work both in the browser and in Node.js. All code should work in both of these environments, and all unit tests are run in both of these environments. Moment.js has been successfully...

See Software
Preact

Preact provides the thinnest possible Virtual DOM abstraction on top of the DOM. It builds on stable platform features, registers real event handlers and plays nicely with other libraries. Most UI frameworks are large enough to be the majority of an app's JavaScript size. Preact is different:...

See Software