> 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/uwp/ui-customization.md). # UI Customization - [UI customization for UWP viewer](https://docs.apryse.com/uwp/ui-customization/ui-customization.md): Discover how to configure and create custom tools with the Config Tools library. Set properties and extend classes for a personalized tool experience. The Apryse uwp SDK streamlines secure document pr - [Adding Tools to your UWP Viewer](https://docs.apryse.com/uwp/ui-customization/tools-setup.md): Learn how to set up the Tools library project for PDFViewCtrl with this step-by-step guide. Add tools to enhance your basic viewer functionality. The Apryse uwp SDK streamlines secure document process - [Create a custom tool for your UWP viewer](https://docs.apryse.com/uwp/ui-customization/custom-tool.md): Learn how to create custom tools for PDFViewCtrl with ease. Explore tools in the PDFViewCtrlTools project, handle events efficiently, prevent input handling, and lock documents effectively. The Apryse - [APIs to customize the toolbar in UWP viewer](https://docs.apryse.com/uwp/ui-customization/toolbar.md): Learn how to customize the toolbar in the PDF Viewer with the UWP Tools SDK. Follow this guide to reorder buttons and enhance your user experience. The Apryse uwp SDK streamlines secure document proce - [UI customization samples for UWP](https://docs.apryse.com/uwp/ui-customization/samples.md): Discover a variety of samples coming soon on our page. Explore our collection and find the perfect sample for your needs. Stay tuned for updates! The Apryse uwp SDK streamlines secure document process - [APIs to customize UI in UWP viewer](https://docs.apryse.com/uwp/ui-customization/apis.md): Discover utility classes for UI customization and ToolManager methods for tool interaction. Enhance your development skills with these helpful resources. The Apryse uwp SDK streamlines secure document --- # 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 by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.apryse.com/uwp/ui-customization.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. 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.