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UWP / Changelog / v8.1.0



PDFTron is now Apryse, learn more here.

Version 8.1.0 Changelog (January 7, 2021)

Version: 8.1.0

Release Date: January 7, 2021


More information can be found on What's new for cross-platform APIs .


  • [tools] Reduced bounding box when creating a Free Text annotation to save real state
  • [tools] Added ThumbnailViewer.DoubleTapToNavigate property to require double tap/click to navigate to selected page

Bug Fixes

  • [pdf] Removed focus border style from PDFViewCtrl when using keyboard arrow keys to change pages

  • [tools] Fixed exception when instantiating ThumbnailViewer control

  • [tools] Fixed Undo and Redo what would cause multiple event to happen when loading a new document by calling PDFViewCtrl.SetDoc()

  • [tools] Fixed exception caused when using Pan tool and holding touch

  • [tools] Added a minimum annotation size during resize in order to avoid manipulation issues

New Features

  • Updated Annotation Toolbar icons and added tool color feedback to the selected tool
Annotation Toolbar
  • New Marquee Zoom tool which allows zooming into selected regions of the document
Marquee Zoom Tool
  • Updated ThumbnailViewer control by adding an overlay to each page for a better UX
Thumbnail Viewer

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