Get Started
play_arrowLearn more
play_arrowCommon use cases
play_arrowOpen a document
play_arrowSave a document
play_arrowViewer
play_arrowUI Customization
play_arrowAnnotations
play_arrowCollaboration
play_arrowForms
play_arrowSignature
play_arrowSearching
play_arrowMeasurement
play_arrowCompare
play_arrowAdvanced Capabilities
play_arrowPDF.js Express REST API
play_arrowMigration Guides
play_arrowThe following features are available in:
PDF.js Express Viewer
PDF.js Express Viewer is a free viewer with limited capabilities compared to PDF.js Express Plus
PDF.js Express Plus
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
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