> 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/layers-ocgs.md). # Layers (OCGs) - [PDF Layers (OCGs) in Xamarin](https://docs.apryse.com/xamarin/layers-ocgs/layers.md): Learn how to show/hide, add, and extract PDF layers with easy-to-follow steps. Optimize your document management skills now! The Apryse Xamarin SDK streamlines secure, serverless document processing, - [OCG layer browser](https://docs.apryse.com/xamarin/layers-ocgs/show-hide-layers.md): Learn how to browse and manage PDF layers in Xamarin.Android and Xamarin.iOS using Apryse SDK. Show or hide optional content groups with PdfLayerDialogFragment and PTPDFLayerViewController. Optimize y - [Add a new PDF Layer in Xamarin](https://docs.apryse.com/xamarin/layers-ocgs/add-layer.md): Learn how to add a PDF layer or OCG (optional content group) to a new document with full sample code for creating, extracting, and rendering PDF layers. Master PDF optimization now! The Apryse Xamarin - [Extract layers from PDF in Xamarin](https://docs.apryse.com/xamarin/layers-ocgs/extract-layer.md): Learn how to extract PDF layers or OCG (optional content group) from a document with this full sample code. Create, extract, and render PDF layers effortlessly. The Apryse Xamarin SDK streamlines secu - [Code samples for working with PDF layers in Xamarin](https://docs.apryse.com/xamarin/layers-ocgs/samples.md): Discover how to create PDF layers (OCG) with this Xamarin.Android showcase app. Explore the features of the SDK and view the demo for PDF layer separation. The Apryse Xamarin SDK streamlines secure, s - [APIs for PDF layers (OCGs) in Xamarin](https://docs.apryse.com/xamarin/layers-ocgs/apis.md): Discover utility classes for layers (OCGs) in PDF documents using Xamarin.Android and Xamarin.iOS with pdftron.PDF.OCG.Group. Optimize your PDFs now! The Apryse Xamarin SDK streamlines secure, serverl --- # 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/layers-ocgs.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.