> 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/core/search.md). # Search - [Searching PDF documents with Server/Desktop Library](https://docs.apryse.com/core/search/search.md): Search for text in a PDF using regular expressions. Find out how to search and replace text or images in PDF files with ease. Start now! The Apryse Server SDK streamlines secure document processing wi - [Search for text in a PDF on Server/Desktop](https://docs.apryse.com/core/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 Server SDK streamlines secure document processi - [Replacing text & images in PDFs with Server/Desktop](https://docs.apryse.com/core/search/replace.md): Learn how to replace text or images in a PDF with this full code sample using pdftron.PDF.ContentReplacer. Enhance your PDF editing skills today! The Apryse Server SDK streamlines secure document proc - [Code samples for searching PDF text or images on Server/Desktop](https://docs.apryse.com/core/search/samples.md): Search and replace text or images in PDF files with ease using TextSearch and ContentReplacer. Learn how to search PDF text and replace content efficiently. The Apryse Server SDK streamlines secure do - [APIs for searching PDF documents on Server/Desktop](https://docs.apryse.com/core/search/apis.md): Discover utility classes for searching PDF documents in various programming languages such as C++, Java, Android, Web (Javascript), Node.js, .NET, .NET Core, iOS, Xamarin, and UWP with PDFNet.TextSear --- # 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/core/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.