### Add AvaloniaPdfViewer NuGet Package

Source: https://github.com/chrisg32/avaloniapdfviewer/blob/main/README.md

Install the AvaloniaPdfViewer NuGet package using the .NET CLI. This is the first step to integrate the PDF viewer into your Avalonia UI application.

```bash
dotnet add package AvaloniaPdfViewer
```

--------------------------------

### Integrate PdfViewer Control in XAML

Source: https://github.com/chrisg32/avaloniapdfviewer/blob/main/README.md

Add the PdfViewer control to your Avalonia UI XAML layout. Bind its 'Source' property to a ViewModel property that holds the PDF file path.

```xml
<avaloniaPdfViewer:PdfViewer Source="{Binding FilePath}"/>
```

--------------------------------

### Add XAML Namespace for PdfViewer

Source: https://github.com/chrisg32/avaloniapdfviewer/blob/main/README.md

Declare the necessary XML namespace in your XAML file to use the AvaloniaPdfViewer controls. This allows you to reference the PdfViewer component.

```xml
xmlns:avaloniaPdfViewer="clr-namespace:AvaloniaPdfViewer;assembly=AvaloniaPdfViewer"
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.