> 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/uwp/viewer/viewer-control-config.md).

# Customize the ViewerControl in UWP

Customize and configure ViewerControl and AnnotationCommandBar easily with internal properties. Enable/disable features and access API documentation for full settings. Optimize your UI components now!

[ViewerControl](/uwp/viewer/using-viewercontrol.md) is configurable and can be easily customized using it's internal properties which enables the UI components to be hidden and functionalities be disabled.

## Configure ViewerControl

The control has a set of options to enable/disable features in the component.

**For example:**

{% tabs %}
{% tab title="C#" %}
{% code lineNumbers="true" %}

```csharp
var viewerCtrl = new ViewerControl();

viewerCtrl.ShowAnnotationToolbarButton = true;
viewerCtrl.ShowPrintOption = true;
viewerCtrl.ShowSaveAsOption = true;
viewerCtrl.ShowShareOption = true;
viewerCtrl.ShowTextSearchOption = true;
viewerCtrl.ShowThumbnailView = true;
viewerCtrl.ShowPDFCompare = true;
viewerCtrl.ShowExportXFDF = true;
viewerCtrl.ShowActionsOption = true;
viewerCtrl.ShowCropView = true;

StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Resources/GettingStarted.pdf"));
if (file != null)
    await viewerCtrl.ActivateWithFileAsync(file);
```

{% endcode %}
{% endtab %}
{% endtabs %}

A full list of settings for `ViewerControl` can be found in the [API documentation](https://sdk.apryse.com/api/uwp/tools/api/pdftron.PDF.Tools.Controls.Viewer.ViewerControl.html)

### AnnotationCommandBar

You also have the ability to access and configure the internal ViewerControl's `Annotation Toolbar`.

{% tabs %}
{% tab title="C#" %}
{% code lineNumbers="true" %}

```csharp
var viewerCtrl = new ViewerControl();

viewerCtrl.AnnotationToolbar.IsArrowToolButtonVisible = true;
viewerCtrl.AnnotationToolbar.IsCloudToolButtonVisible = true;
viewerCtrl.AnnotationToolbar.IsLassoToolButtonVisible = true;
viewerCtrl.AnnotationToolbar.IsMarqueeZoomToolButtonVisible = true;

StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Resources/GettingStarted.pdf"));
if (file != null)
    await ViewerControl.ActivateWithFileAsync(file);
```

{% endcode %}
{% endtab %}
{% endtabs %}

A full list of settings for `AnnotationCommandBar` can be found in the [API documentation](https://sdk.apryse.com/api/uwp/tools/api/pdftron.PDF.Tools.Controls.AnnotationCommandBar.html)


---

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