Some test text!

WebViewer – JavaScript PDF Library

Works on all browsers, frameworks and mobile devices without server-side dependencies.
Supports PDF, MS Office, CAD and 30+ formats.


Form Filling

Page Editing

UI Customization

Dark Mode

All Capabilities

Open-source UI

Customize the look and feel of every component. Clone the GitHub Repo or customize by calling hundreds of customization APIs.

Most Complete WebViewer

Start with just what you need and seamlessly add features such as collaboration, redaction, and MS Office, Video, CAD support from the most comprehensive SDK on the market.

Complete Client-side Solution

Build scalable applications without server-side dependencies. Rendering, edting and document processing happens completely inside of the browser.

Hundreds of features

Support current and future use cases with the most complete PDF, Image, Office, Video and Audio SDK on the market.

All Capabilities

30+ file formats

Support for 30+ file formats, including PDF, PDF/A, HTML, SVG, PNG, and Microsoft Office.

All File Formats

Documentation & Samples

Everything you need to quickly build a prototype, and for a great development experience.


Powered by the PDFTron SDK

Easy to Integrate

Code samples, familiar package managers, and a Docker image make it easy to get up and running.

Consistent and Predictable

Our core document engine has been perfected by 20 years of knowledge, innovation, and real-world testing.

Fully Customizable

An open source UI gives you complete freedom to match your look & feel, and optimize the user experience.

Truly Cross-Platform

A single API with consistent function calls across platforms means a shorter learning curve and easier maintenance.

Try our SDK for free today

UPCOMING WEBINAR: Live tech update and run-through. October 21 @ 11am PDT