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Whyteboard is a painting whiteboard application for Linux and Windows, that allows the annotation of PDF and PostScript documents, and image files with common drawing tools.

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Website http://whyteboard.org
  • PDF annotation (using ImageMagick)
  • Replay your drawings
  • Tabbed drawing with updating thumbnails for each tab
  • Text entry, standard drawing tools (pen, rectangle, circle, polygon)
  • Cross-platform ( Windows, Linux, Mac)
  • Lightweight and easy-to-use
  • Resizable canvas that updates its size as you drag it
  • Unlimited undo/redo; undo closed tabs
  • Embed video and audio
  • Portable cross-platform save format
  • Available in multiple languages