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# Version 5.8.1

Enhance your PDF viewing experience with the latest updates! Discover new features like Retina display support, Print API, text highlighting, and more. Upgrade now for a seamless reading experience. T

Release Date: 2012.04.04

## Changes to PDFViewCtrl:

* Retina display support for iPhone and iPad
* A new Print API. Uses iOS Air Print, but prepares the document by flattening annotations and removing encryption.
* New APIs for highlighting text (highlightSelectedTextWithColor:, hideSelectedTextHighlights)
* Added new delegate methods for outer scroll view.
* Added new ToolChanged delegate method that can be used to update toolbars, etc.
* Links are highlighted when activated.
* Support for transparent background (so that a non-moving thatched background can be shown behind pages).
* Added a new custom event on PDFViewCtrl that can be called manually when a "custom" event has occurred and handled by a tool.
* Bug fixes.

## Changes to Tools:

* New FreeText tool.
* New tools TextHighlightCreate, TextSquigglyCreate, TextStrikeoutCreate and TextUnderlineCreate that immediately mark up text without the need to select the text first.
* New tool mode that allows a tool not to switch back to another tool after TouchesEnded.
* Sticky notes are now automatically opened for editing when created.
* Added a page indicator in the tool base class.
* Increased default thickness of markup annotations.
* Tools has built-in iPhone compatibility for the ColorPicker and note editor.
* Improved performance of FreeHand tool.
* Selecting text now allows widgets to cross.
* Bug fixes.


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