Select a product

PDF.js Express Free Viewerplay_arrow

Professional PDF.js Viewing - Free

PDF.js Express Plusplay_arrow

Professional PDF.js Viewing & Annotations - Try for free

Get Started

play_arrow

Learn more

play_arrow

Common use cases

play_arrow

Open a document

play_arrow

Save a document

play_arrow

Viewer

play_arrow

UI Customization

play_arrow

Annotations

play_arrow

Collaboration

play_arrow

Forms

play_arrow

Signature

play_arrow

Searching

play_arrow

Measurement

play_arrow

Compare

play_arrow

Advanced Capabilities

play_arrow

PDF.js Express REST API

play_arrow

Migration Guides

play_arrow

APIs for customizing UI

The following features are available in:

check

PDF.js Express Viewer

help_outline

PDF.js Express Viewer is a free viewer with limited capabilities compared to PDF.js Express Plus

check

PDF.js Express Plus

help_outline

PDF.js Express Plus is a commercial PDF SDK for viewing, annotating, signing, form filling and more

Disable features
Disable certain features of the UI such as item caching or annotation tools.

Hide elements
Hide certain parts of the UI, such as annotation tools or the download button.

Change the theme
Change the appearance of the UI.

PDF.js Express Web Viewer
PDF.js Express is a commercial PDF web viewer that wraps around the PDF.js open-source rendering engine.

WebViewer instance
The WebViewer instance is an object that contains functions and namespaces for interacting with the UI and document.