> 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/redaction/redact.md).

# Redaction

Secure your documents with ease using the redaction annotation tool. Learn how to redact PDF content in Android and iOS with UI components or programmatically using Xamarin APIs. The Apryse Xamarin SD

The redaction annotation tool allows you to permanently remove content from documents.

{% tabs %}
{% tab title="Android" %}

## Redacting PDF content in Android

You can redact content from a document using the UI component or programmatically with the Xamarin.Android API.

[UI Component](https://github.com/iKettles/apryse-gitbook/tree/main/xamarin/guides/android/redaction/redact.md?tab-e571ae43-d884-4b85-84d3-b064002b3eb4=ui+component) The redaction tool allows you to redact content with a tool in the graphical interface of the document viewer.

[API guide](https://github.com/iKettles/apryse-gitbook/tree/main/xamarin/guides/android/redaction/redact.md?tab-e571ae43-d884-4b85-84d3-b064002b3eb4=api+guide) You can programmatically redact content from documents.
{% endtab %}

{% tab title="iOS" %}

## Redacting PDF content in iOS

You can redact content from a document using the UI component or programmatically with the Xamarin.iOS API.

[UI Component](https://github.com/iKettles/apryse-gitbook/tree/main/xamarin/guides/ios/redaction/redact.md?tab-fbc84377-ca90-4621-9109-d9ab14064289=ui+component) The redaction tool allows you to redact content with a tool in the graphical interface of the document viewer.

[API guide](https://github.com/iKettles/apryse-gitbook/tree/main/xamarin/guides/ios/redaction/redact.md?tab-fbc84377-ca90-4621-9109-d9ab14064289=api+guide) You can programmatically redact content from documents.
{% endtab %}
{% endtabs %}


---

# 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/redaction/redact.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.
