> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/ios/changelogs/version-6/v6-10-4.md).

# Version 6.10.4 Changelog (May 29th, 2019)

World's #1 PDF SDK Library for Web, Mobile, Server, Desktop

* Version: 6.10.4
* Release Date: May 29th, 2019
* Built with Xcode 10.2.1 (10E1001)

## New

* The [`PTDocumentViewController`](https://sdk.apryse.com/api/ios/Classes/PTDocumentViewController.html) class now supports keyboard shortcuts for document navigation and interaction (scroll, zoom, delete annotation, etc.) and many other actions. Please see our [keyboard shortcuts guide](/ios/viewer/keyboard-shortcuts.md) for a list of all shortcuts.
* The Apple Pencil is now supported by the Tools framework. With the [`pencilTool`](https://sdk.apryse.com/api/ios/Classes/PTToolManager.html#/c:objc\(cs\)PTToolManager\(py\)pencilTool) property on the [`PTToolManager`](https://sdk.apryse.com/api/ios/Classes/PTToolManager.html) class, any tool can be used with an Apple Pencil. By default, an Apple Pencil will draw ink annotations using the [`PTFreehandCreate`](https://sdk.apryse.com/api/ios/Classes/PTFreeHandCreate.html) tool.
* Rotation control for image stamp annotations. While rotating, the annotation snaps to 45 degree rotations when close. A rotation handle can be used to rotate the annotation as well as using two fingers.

![](https://4149080208-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgY6xtY9ZQd9XMpvWlGM0%2Fuploads%2Fgit-blob-2cc9dc578686d4abdf1943af721ccf4edb7ad5d2%2Fa633f02e3281bfd09ae270a0ec73054895e27560-1200x1593.gif?alt=media)

* The signature dialog's appearance has been updated in this release. It is now possible to change the signature ink's color with several presets.

![](https://4149080208-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgY6xtY9ZQd9XMpvWlGM0%2Fuploads%2Fgit-blob-a7929053c6cff55b81996fd73374c3b3ef3bc58f%2Fceee8985b58d7becd718cbdbadd16764ccfa07e6-1150x1298.png?alt=media)

* Initial support for realtime collaboration, demonstrated in the new "Collaboration" sample included in the SDK `.DMG` download. We will be expanding our capabilities in coming releases and welcome feedback.

## Bug fixes

* A number of miscellaneous bug fixes.


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