> 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/forms.md). # Forms - [PDF Form Fill Library in Xamarin](https://docs.apryse.com/xamarin/forms/form-fields.md): Learn how to import, export, and fill form data in PDFs with this comprehensive guide. Create new form fields, merge data, and flatten forms effortlessly. The Apryse Xamarin SDK streamlines secure, se - [Form builder](https://docs.apryse.com/xamarin/forms/form-builder.md) - [Merge Form Data File (FDF or XFDF) to PDF Forms in Xamarin](https://docs.apryse.com/xamarin/forms/import-data.md): Learn how to efficiently merge XFDF or FDF annotations into PDF documents using FDFUpdate, FDFMerge, and MergeXFDF APIs. Choose the best method for your use case and optimize your PDF workflow. The Ap - [Extract FDF data from a PDF in Xamarin](https://docs.apryse.com/xamarin/forms/export-data.md): Learn how to extract data from PDF to FDF and export FDF as XFDF with full support for Forms Data Format. Get the sample code for PDF Form Fill and Data Extraction here! The Apryse Xamarin SDK streaml - [Create new form fields and widget annotations in Xamarin](https://docs.apryse.com/xamarin/forms/new-fields.md): Learn how to create new form fields and widget annotations within a PDF document. Understand field types and naming conventions for interactive forms. Get a full code sample for PDFNet capabilities. T - [Fill Forms](https://docs.apryse.com/xamarin/forms/fill-fields.md): Learn how to create, edit, and fill PDF forms in Xamarin.Android and Xamarin.iOS using Apryse SDK. Fill form fields programmatically or with the UI component for seamless interaction. Access interacti - [Flatten PDF form content in Xamarin](https://docs.apryse.com/xamarin/forms/flatten.md): Flatten form fields in a PDF document with ease using Apryse SDK. Learn how to merge field appearances and flatten all forms in a single function call. Find out more about form flattening here! The Ap - [APIs for PDF form filling in Xamarin](https://docs.apryse.com/xamarin/forms/apis.md): Discover utility classes for PDF form handling in Xamarin.Android and Xamarin.iOS using C# with pdftron.FDF.FDFDoc and pdftron.FDF.FDFField. Optimize your PDF document forms efficiently. The Apryse Xa - [Code samples to fill PDF forms & extract data in Xamarin](https://docs.apryse.com/xamarin/forms/samples.md): Explore PDF interactive forms (AcroForms) and PDFNet capabilities for form fill, data extraction, and more in this showcase of Xamarin.Android and Xamarin.iOS sample apps. Discover form filling and ex --- # 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/xamarin/forms.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.