> 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/xamarin/changelogs/version-6/v6-10-4.md). # Version 6.10.4 Changelog (June 4, 2019/ June 5, 2019) World's #1 PDF SDK Library for Web, Mobile, Server, Desktop Version: 6.10.4 Release Date for Xamarin.Android: June 4, 2019 Release Date for Xamarin.iOS: June 5, 2019 ## Notes This release of Apryse for Xamarin brings the core PDF functionality and iOS and Android Tools functionality inline with version 6.10.4 of the iOS and Android SDKs. More information can be found on [What's New for iOS](/ios/changelogs/version-6/v6-10-4.md) and [What's New for Android](/android/changelogs/version-6/v6-10-4.md). ## Xamarin.Android ### New features * Adds freeform rotation to stamp annotations * Adds [builder API](/xamarin/guides/getting-started/using-fragment.md) for easy construction and customization of [`PdfViewCtrlTabHostFragment`](https://sdk.apryse.com/api/xamarinandroid/tools/api/pdftron.PDF.Controls.PdfViewCtrlTabHostFragment.html) and [`PdfViewCtrlTabFragment`](https://sdk.apryse.com/api/xamarinandroid/tools/api/pdftron.PDF.Controls.PdfViewCtrlTabFragment.html) * Adds calibration to [measurement tools](/xamarin/annotation/annotation/measurement-a.md) * Adds API to support vertical [reflow control](https://github.com/iKettles/apryse-gitbook/tree/main/xamarin/guides/android/viewer/view-mode.md?tab-7497ab04-7f4e-4bf0-ae7e-d57647bd6d00=reflow) scrolling direction * Adds [ViewerConfig](/xamarin/basic-operations/basics/fragment-config.md) API to disable editing of separate dialogs such as [ThumbnailsViewFragment](/xamarin/guides/viewer-components/thumbnails-view-a.md), [UserBookmarkDialogFragment](/xamarin/guides/viewer-components/user-bookmarks-a.md) and [AnnotationDialogFragment](/xamarin/guides/viewer-components/annotation-list-a.md) ### Fixed * Fixed issue where non-seekable content URI would not save correctly when opened `PdfViewCtrlTabHostFragment` or `DocumentActivity` * Fixed issue where switching day/night mode in [DocumentActivity](/xamarin/guides/getting-started/using-activity.md) would crash on some devices * Fixed issue where quick menu might be cut off after orientation change on some devices * Fixed issue where `AnnotationToolbar` may crash if its XML is overridden from application with elements removed * Fixed issue where non-PDF HTTP/HTTPS URL without extension would crash the viewer * Performance improvement for export annotation feature ## Xamarin.iOS ### New features * Adds keyboard shortcuts to the `PTDocumentViewController` * Adds Apple Pencil support * Adds freeform rotation to stamp annotations * Improved signature dialog appearance --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.apryse.com/xamarin/changelogs/version-6/v6-10-4.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.