Get Started

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PDF.js Express Viewer

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Learn more

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Common use cases

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Open a document

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Save a document

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Viewer

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UI Customization

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Annotations

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Collaboration

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Forms

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Signature

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Searching

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Measurement

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PDF.js Express REST API

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Migration Guides

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PDF.js Express Plus Overview

What is PDF.js Express Plus?

PDF.js Express is a commercial PDF viewer and annotator that wraps around the PDF.js open-source rendering engine. It has full annotation support, including an extensive API for programmatic annotation editing. It also has other features like UI customization, form filling, eSignatures, and measurement tools.

See and compare all features here.

Select an integration or framework to get started

Integration

Integrate via NPMManual integration

Frameworks

PDF.js Express is compatible with any JavaScript framework because all it needs is a DOM element to place the document viewing component. If you don't see your framework in the list then you can check out the framework guide which explains how to integrate PDF.js Express Web Viewer into any framework.