> 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/basic-operations/basics/pdf-thumbnails.md).

# Generate PDF page thumbnails in Xamarin

Learn how to display PDF document page thumbnails in Xamarin.Android using Apryse's library. Get thumbnail Bitmap images for each page with PDFViewCtrl. Cancel thumbnail requests easily. The Apryse Xa

{% hint style="info" %}
**This tutorial only applies to Xamarin.Android.**
{% endhint %}

{% hint style="info" %}
Apryse's library provides a page thumbnail dialog which shows thumbnails of all PDF document pages. Fore more information, see [thumbnail browser ](/xamarin/page-manipulation/thumbnail-browser.md#android).
{% endhint %}

With [`PDFViewCtrl`](https://sdk.apryse.com/api/xamarinandroid/pdfnet/api/pdftron.PDF.PDFViewCtrl.html), you can get a thumbnail [`Bitmap`](https://developer.android.com/reference/android/graphics/Bitmap.html) image for each page in a PDF document.

The following example request thumbnail for page 3:

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

```csharp
pdfViewCtrl.ThumbAsync += (sender, e) =>
{
    var bitmap = Bitmap.CreateBitmap(e.Width, e.Height, Bitmap.Config.Argb8888);
    bitmap.SetPixels(e.Buf, 0, e.Width, 0, 0, e.Width, e.Height);
    // use the bitmap
};

// request thumbnail for page 3
pdfViewCtrl.GetThumbAsync(3);
```

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

where `pdfViewCtrl` is an instance of `PDFViewCtrl`.

{% hint style="info" %}
It is recommended you cancel all thumbnail requests once they are no longer needed. To cancel all thumbnail request, use `PDFViewCtrl.cancelAllThumbRequests()`.
{% endhint %}


---

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