Some test text!

menu
Overviewkeyboard_arrow_down

JavaScript PDF Annotation Library

In WebViewer annotations can be created both through the UI and programmatically.

Sticky annotation
Figure 1. Sticky annotation created on a document

Annotations allow users to mark up and comment on PDFs without altering the original authors content.

PDFTron SDK Benefits include:

  • Infinite Undo/Redo
  • Support for annotation flattening
  • Support for annotation appearances
  • XFDF Import
  • Export annotations to FDF, XFDF, text, or PDF annotation summary
  • Sticky (Note)
  • Comments
  • Text markup (highlight, squiggly, underline, strikeout)
  • Add shapes (line, arrow, polyline, rectangle, ellipse, polygon, cloud)
  • Cloud annotations
  • Apply freehand ink annotations
  • Signatures
  • Save the annotations into the PDF file
  • File attachments
  • Sound, movie, and 3D annotations
  • Support for custom annotations
  • FreeText, Callout
  • TextHighlight, TextUnderline, TextSquiggly, TextStrikeout
  • Stamp
  • Redaction

linkGet started

Importing and exporting annotations
To import and export annotations with a PDF document.

Add annotations
To create annotations programmatically with a PDF document.

Remove annotations
To remove annotations programmatically with a PDF document.

Add custom annotations
To create custom annotations programmatically with a PDF document.

Flatten annotations
To flatten annotations programmatically with a PDF document.

A short introduction to XFDF file format
An introduction to XFDF file format.

Annotation permissions
To control which users can modify which annotations.

Annotation events/triggers
To listen for annotation events and handle various callbacks.

Annotation tools
An introduction to annotation tools.

Custom annotation tools
To customize annotation tools for grouping, enable/disable, style changes, or behaviour enhancement

Customize stamp annotation To customize stamp annotation tool for standard and custom stamps

Default tool styles
To customize the default annotation style properties of tools.

Get the answers you need: Support

close

Free Trial

Get unlimited trial usage of PDFTron SDK to bring accurate, reliable, and fast document processing capabilities to any application or workflow.

Select a platform to get started with your free trial.

Unlimited usage. No email address required.

Join our live demo to learn about use cases & capabilities for WebViewer

Learn more
close