> 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/bookmarks/samples.md).

# Code samples to edit PDF bookmarks in Xamarin

Learn how to read, add, and edit PDF outlines and bookmarks using the high-level API. Explore UI samples for Xamarin.Android and Xamarin.iOS showcasing features of the SDK. Click to view the bookmark

[Read, add, edit PDF outlines and bookmarks](/xamarin/get-started/samples.md#bookmarks) The sample code illustrates how to read and edit existing outline items and create new bookmarks using the high-level API.

## UI samples

{% hint style="info" %}
Please note that **native code** is being used in the following showcase app(s). Apryse SDK for Xamarin provides the same features but the source code for the showcase application(s) is only available in native languages.
{% endhint %}

#### Xamarin.Android

[Android showcase sample app](/android/samples/package-samples/sample-showcase.md) The showcase demonstrates some features of the SDK. To view the bookmark demo, select `Bookmark` found under `Viewing` in the app.

#### Xamarin.iOS

[iOS showcase sample app](/ios/samples/run-sample.md) The showcase demonstrates some features of the SDK. To view the bookmark demo, select `Bookmark` found under `Viewing` in the app.


---

# 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 dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.apryse.com/xamarin/bookmarks/samples.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.