> 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/search.md). # Search - [Searching PDF documents with UWP Library](https://docs.apryse.com/uwp/search/search.md): Search for text in a PDF using regular expressions. Easily search and replace text or images in PDF files with a target region. Get started now! The Apryse uwp SDK streamlines secure document processi - [Search for text in a PDF in UWP](https://docs.apryse.com/uwp/search/text-search.md): Learn how to search for text in a PDF using regular expressions and apply link annotations on highlighted results. Full code sample included. The Apryse uwp SDK streamlines secure document processing. - [Replacing text & images in PDFs with UWP](https://docs.apryse.com/uwp/search/replace.md): Learn how to find and replace text or images in a PDF using pdftron.PDF.ContentReplacer. Get the full code sample for searching and replacing content in existing PDF files. Perfect for updating busine - [Code samples for searching PDF text or images in UWP](https://docs.apryse.com/uwp/search/samples.md): Search PDF files for text using regular expressions. Learn how to search and replace text or images in existing PDFs with this helpful sample. Improve your PDF editing skills now! The Apryse uwp SDK s - [APIs for searching PDF documents in UWP](https://docs.apryse.com/uwp/search/apis.md): Discover utility classes for searching PDF documents in UWP using C#, VB, or JS with pdftron.PDF.TextSearch and pdftron.PDF.ContentReplacer. Optimize your PDF search now! The Apryse uwp SDK streamline --- # 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/search.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.