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# Code samples to secure PDFs via encryption / decryption in Xamarin

Learn how to Encrypt and Decrypt PDF Files with PDFNet SDK. Explore encryption support and security features in Xamarin.Android and Xamarin.iOS showcase sample apps. Unlock the power of secure documen

[Encrypt and Decrypt PDF Files](/xamarin/get-started/samples.md#encryption) Illustrates encryption support in PDFNet. The sample code reads an encrypted document and sets a new SecurityHandler.

## 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 security demo, select any of the samples found under `Security` in the app such as:

* [Password-Protected Document](/android/samples/package-samples/sample-showcase.md)

#### Xamarin.iOS

[iOS showcase sample app](/ios/samples/run-sample.md) The showcase demonstrates some features of the SDK. To view the security demo, select any of the samples found under `Security` in the app such as:

* [Password-Protected Document](/ios/samples/run-sample.md)


---

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