> 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/get-started/xamarin-ios/view-ios.md).
# Step 2: View a document in Xamarin.iOS
Learn how to create a new Visual Studio iOS App project with Single View App and set up a NavigationController in ViewController.cs. Run your app in debug mode for a seamless experience. The Apryse Xa
1. If you do not already have an existing application, create a new Visual Studio `iOS App` project with `Single View App`.
2. Add these namespaces to `ViewController.cs`:
{% tabs %}
{% tab title="C#" %}
{% code lineNumbers="true" %}
```csharp
using pdftron;
using pdftron.PDF.Controls;
```
{% endcode %}
{% endtab %}
{% endtabs %}
1. Add a new NavigationController as the entry point and make the existing ViewController the root view controller:
Your final setup should look like this:
1. Add the following lines to the `ViewDidLoad()` method:
{% tabs %}
{% tab title="C#" %}
{% code lineNumbers="true" %}
```csharp
var documentController = new PTDocumentController();
this.NavigationController.PushViewController(documentController, true);
documentController.OpenDocumentWithURL(new Uri("https://pdftron.s3.amazonaws.com/downloads/pdfref.pdf"));
```
{% endcode %}
{% endtab %}
{% endtabs %}
1. Run the application in debug mode and you should see the DocumentController start up:
## Next step
CustomizeAdd an Apryse license key
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