PDF.js Express Plusplay_arrow

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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Advanced Capabilities

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PDF.js Express REST API

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Migration Guides

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Saving a document with annotations

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 with limited capabilities compared to PDF.js Express Plus

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PDF.js Express Plus

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

The pure client side of PDF.js Express does not have the ability to bake annotations directly into the PDF on save. The most common use case is saving the annotations (as XFDF) as a seperate layer in your database. See this guide for more information.

However, PDF.js Express does provide a REST API that merge or set annotations directly into the document.

Read the documentation