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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

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PDFTron Receives USD$71 Million Growth Investment Led By Silversmith Capital Partners

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