> 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/edit-page-content/stamp.md).

# Adding a stamp to PDFs in Xamarin

Stamp PDF pages with text, images, or other PDF pages using Apryse SDK. Learn how to embed fonts, copy graphical elements, and more. Get a full code sample for stamping PDF files efficiently. The Apry

A stamp in a PDF document is analogous to applying a rubber stamp on a paper document.

Apryse SDK benefits include:

* Stamp PDF pages with text, images, or with other PDF pages.
* Embed fonts and images, and copy graphical elements from one page to another.

## Use Stamper to stamp content (text, image, PDF page)

To stamp text, image, and a PDF page to a PDF document.

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

```csharp
PDFDoc doc = new PDFDoc(filename);
Stamper s = new Stamper(Stamper.SizeType.e_relative_scale, .05, .05)

// Specifies if the stamp is to be stamped as an annotation.
// note that stamps created with this setting do not work with SetAsBackground, HasStamps, and DeleteStamps, if annotation is true.
//s.SetAsAnnotation(true);

s.SetAlignment(Stamper.HorizontalAlignment.e_horizontal_right, Stamper.VerticalAlignment.e_vertical_bottom);
s.SetAlignment(Stamper.HorizontalAlignment.e_horizontal_center, Stamper.VerticalAlignment.e_vertical_top);
s.SetFont(Font.Create(doc, Font.StandardType1Font.e_courier, true));
s.SetFontColor(new ColorPt(1, 0, 0, 0)); //set color to red
s.SetTextAlignment(Stamper.TextAlignment.e_align_right);
s.SetAsBackground(true); //set text stamp as background
s.StampText(doc, "This is a title!", new PageSet(1, 2));

Image img = Image.Create(doc, imagename);
s.SetAsBackground(false); // set image stamp as foreground
s.StampImage(doc, img, new PageSet(1));

PDFDoc src_doc = new PDFDoc(src_filename);
Page src_page = src_doc.GetPage(1);
s.StampPage(doc, src_page, new PageSet(1));
```

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

[Stamp a PDF File](/xamarin/get-started/samples.md#stamper) Full code sample which shows how to stamp PDF pages with text, images, or with other PDF pages and how to add new content (or watermark).

## About Stamper

Stamper can be used for PDF pages with text, images, or with other PDF content in only a few lines of code. Although Stamper is very simple to use compared to ElementBuilder/ElementWriter it is not as powerful or flexible. In case you need full control over PDF creation use ElementBuilder/ElementWriter to add new content to existing PDF pages as shown in the [ElementBuilder sample project ](/xamarin/get-started/samples.md#elementbuilder).


---

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