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PDF.js Express Free Viewerplay_arrow

Professional PDF.js Viewing - Free

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Professional PDF.js Viewing & Annotations - Try for free

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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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Measurement

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Compare

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Advanced Capabilities

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PDF.js Express REST API

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Migration Guides

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Development

The following features are available in:

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PDF.js Express Viewer

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PDF.js Express Viewer is a free viewer that has limited capabilities compared to PDF.js Express Pro

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PDF.js Express Plus

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PDF.js Express Plus is a paid product that supports annotating, signing, form filling and more

With a license key

The first 500 actions per key per month are free. You may use these free actions for testing purposes if you wish.

Since the client side license keys are domain locked, we also allow 500 free actions per month coming from localhost (with a valid license key). The output of these localhost actions will be watermarked/mangled, but still usuable for testing purposes.

If you require more actions for testing, please contact us and we'll help you out.

Without a license key

You may use any API without a license key, however the output will be watermarked/mangled and usage is heavily rate limited. Trial usage without a license key is free.