> 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/annotation.md). # Annotation - [PDF annotation library for Xamarin](https://docs.apryse.com/xamarin/annotation/annotation.md): Discover the Apryse libraries' annotation tools, from configuring and importing annotations to customizing styles and event handling. Learn how to enhance your document annotations effectively. The Ap - [Samples for adding annotations in Xamarin](https://docs.apryse.com/xamarin/annotation/annotation/samples.md): Learn how to add or edit PDF annotations with UI samples for Xamarin.Android and Xamarin.iOS. Explore features like Annotation List, Toolbar, and more. The Apryse Xamarin SDK streamlines secure, serve - [Annotation and PDF interaction customization in Xamarin](https://docs.apryse.com/xamarin/annotation/annotation/customization.md): Learn how to implement annotation and PDF interaction in Xamarin.Android using open-source tools. Customize annotation handling and create unique annotations for your app. The Apryse Xamarin SDK strea - [Adding measurement tools to viewer in Xamarin](https://docs.apryse.com/xamarin/annotation/annotation/measurement-a.md): Learn how to create and edit measurement annotations in Xamarin.Android using DocumentActivity and PdfViewCtrlTabHostFragment2 components. Find out how to configure ToolManager and use different measu - [APIs for creating & editing annotations in Xamarin](https://docs.apryse.com/xamarin/annotation/annotation/apis.md): Discover utility classes for annotation creation and editing in Xamarin PDF viewer. Learn about ToolManager and Annot classes in Xamarin.Android and Xamarin.iOS. Optimize your PDF viewing experience w - [Library namespaces](https://docs.apryse.com/xamarin/annotation/namespaces.md): Discover how Apryse SDK's Xamarin.Android and Xamarin.iOS libraries empower you to interact with documents using UI components and programmatically. Learn more about the tools and namespaces available - [Tools overview](https://docs.apryse.com/xamarin/annotation/tools-overview.md): Discover how Apryse SDK provides a comprehensive set of annotation and document interaction tools for Xamarin.Android viewer. Learn about the various interactive tools available and how to customize t - [Annotation and PDF interaction customization](https://docs.apryse.com/xamarin/annotation/config-annot-tools.md): Learn how to customize annotation interactions in Xamarin.Android viewer using Apryse SDK. Build and customize ToolManager for PDF interaction tools easily with ToolManagerBuilder. Check out this tuto - [Import annotations in Xamarin](https://docs.apryse.com/xamarin/annotation/import.md): Learn how to efficiently manage XFDF and FDF annotations in PDF documents using FDFUpdate, FDFMerge, and MergeXFDF APIs. Choose the best method for your use case and optimize your workflow. The Apryse - [Export annotations in Xamarin](https://docs.apryse.com/xamarin/annotation/export.md): Learn how to extract data from PDF to FDF, export FDF as XFDF, and fill PDF forms with ease. Get full sample code for FDF merge/extract functionality and support. The Apryse Xamarin SDK streamlines se - [Annotation sync](https://docs.apryse.com/xamarin/annotation/sync.md): Learn how to sync annotations in real-time for collaboration between clients using Xamarin.Android viewer. Follow this tutorial for annotation syncing with Apryse. The Apryse Xamarin SDK streamlines s - [Annoatation list](https://docs.apryse.com/xamarin/annotation/annotation-list.md): Learn how to view annotations as a list in Xamarin.Android with AnnotationDialogFragment. Set up listeners, manage read-only access, and more. Explore the Xamarin.iOS equivalent for PTAnnotationViewCo - [Annotation Toolbar](https://docs.apryse.com/xamarin/annotation/annotation-toolbar.md): Customize annotation toolbar for Xamarin.Android viewer to conveniently create and switch between annotation tools. Learn how to customize, show/hide toolbar items, and disable specific tools for a ta - [Style editor](https://docs.apryse.com/xamarin/annotation/style-editor.md): Learn how to customize annotation style properties in Xamarin.Android viewer with the Annotation Style Editor. Change colors, thickness, and more easily with this tutorial. The Apryse Xamarin SDK stre - [Customize annotation style editor in Xamarin](https://docs.apryse.com/xamarin/annotation/customize-color-picker.md): Learn how to customize AnnotationStyleDialogFragment in Xamarin.Android using Android styles or ToolManagerBuilder. Customize color picker, preset annotations, and icon picker for a tailored user expe - [Edit annotation style properties in Xamarin](https://docs.apryse.com/xamarin/annotation/style.md): Learn how to add or edit PDF annotations with this comprehensive code sample. Set annotation style properties like color, border style, and more. Perfect for enhancing your PDF documents. The Apryse X - [Default annotation properties](https://docs.apryse.com/xamarin/annotation/default-annot-properties.md): Learn how to set default annotation properties programmatically in Xamarin.Android viewer. Find out how to customize annotation colors, fonts, thickness, and more. Explore the tutorial now! The Apryse - [Events](https://docs.apryse.com/xamarin/annotation/toolmanager-events.md): Learn how to get notified of events fired from ToolManager in Xamarin.Android and Xamarin.iOS. Register callbacks for touch, annotation, quick menu events, and more. Explore event APIs and delegate me - [Create custom annotations in Xamarin](https://docs.apryse.com/xamarin/annotation/custom-annot-appearance.md): Learn how to prevent the loss of changes made to a \`PTAnnot\` appearance by avoiding the use of RefreshAppearance. Find out more about this warning and how to handle it effectively. The Apryse Xamarin - [Annotation handling](https://docs.apryse.com/xamarin/annotation/annotation-handling.md): Learn how to customize annotation handling for Xamarin.Android with Apryse SDK. Intercept and customize annotation events, get notified after actions, and enhance user interactions. Explore more custo - [Create annotations](https://docs.apryse.com/xamarin/annotation/create-annotations.md): Learn how to add various annotations to PDF documents using Xamarin viewer, including sticky notes, links, stamps, and more. Full code samples provided for adding or editing PDF annotations. Stamp tex - [Remove annotation from document in Xamarin](https://docs.apryse.com/xamarin/annotation/remove.md): Learn how to remove an annotation from a document with our step-by-step guide. Easily manage your files and annotations for a seamless experience. The Apryse Xamarin SDK streamlines secure, serverless - [Flatten PDF annotations in Xamarin](https://docs.apryse.com/xamarin/annotation/flatten-annotation.md): Flatten annotations in a PDF document with ease using PDFNet capabilities. Learn about annotation flattening and how to merge annotations with page content effectively. Explore the benefits of flatten - [Read only mode](https://docs.apryse.com/xamarin/annotation/read-only-mode.md): Learn how to set user permissions to prevent PDF editing in Xamarin.Android viewer. Disable annotation creation, editing, form filling, signing, and more with this tutorial. The Apryse Xamarin SDK str - [Disable annotation creation and editing](https://docs.apryse.com/xamarin/annotation/disable-annot-create-edit.md): Learn how to disable annotation creation and editing permissions in Xamarin.Android viewer with this tutorial. Find out how to hide annotation tools and more. The Apryse Xamarin SDK streamlines secure - [Show and hide annotations](https://docs.apryse.com/xamarin/annotation/show-hide-annot.md): Learn how to show or hide annotations in Xamarin.Android viewer with this step-by-step tutorial. Easily manage annotations on your PDF documents. The Apryse Xamarin SDK streamlines secure, serverless - [Code samples to add annotations to PDFs in Xamarin](https://docs.apryse.com/xamarin/annotation/samples.md): Learn how to add or edit PDF annotations like hyperlinks, stamps, and more with UI samples in Xamarin.Android and Xamarin.iOS showcase apps. Try it now! The Apryse Xamarin SDK streamlines secure, serv - [API for Annotating PDFs in Xamarin](https://docs.apryse.com/xamarin/annotation/apis.md): Discover utility classes for annotating PDF documents in Xamarin.Android and Xamarin.iOS using C# with pdftron.PDF.Tools.ToolManager and pdftron.PDF.Annot. Optimize your PDF annotations now! The Aprys --- # 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. 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