Get Started

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PDF.js Express Plus

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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 Viewer Overview

What is PDF.js Express Viewer?

PDF.js Express Viewer is a free in-browser PDF Viewer. It has a beautiful, customizable UI and features like text search, text select, and high fidelity zooming.

If you are looking for features such as annotations, form filling, or real-time collaboration, check out PDF.js Express Plus.

See and compare all features here.

Free license key required.

To use PDF.js Express Viewer you do need a free license key. Please get your free Viewer key here if you do not have one.

Select an integration or framework to get started

Integrations

Integrate via NPMManual integration

Frameworks

PDF.js Express Web Viewer 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.