> 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/samples.md).

# Code samples to edit PDFs in Xamarin

Learn how to edit, insert images, search and replace text, stamp files, extract images, and more with PDF Editor (Programmatic) sample code. Explore various PDF editing techniques now! The Apryse Xama

[PDF Editor (Programmatic)](/xamarin/get-started/samples.md#elementedit) The sample code shows how to edit the page display list and how to modify graphics state attributes on existing Elements.

[Insert an image into a PDF](/xamarin/get-started/samples.md#addimage) This sample illustrates how to embed various raster image formats (e.g. TIFF, JPEG, JPEG2000, JBIG2, GIF, PNG, BMP, etc.) in a PDF document.

[Search & replace PDF text or images](/xamarin/get-started/samples.md#contentreplacer) This sample shows how to use pdftron.PDF.ContentReplacer to search and replace text strings and images in existing PDF (e.g. business cards and other PDF templates)

[Stamp a PDF File](/xamarin/get-started/samples.md#stamper) The sample shows how to use 'pdftron.PDF.Stamper' utility class to stamp PDF pages with text, images, or with other PDF pages.

[PDF logical structure reader](/xamarin/get-started/samples.md#logicalstructure) This sample explores the structure and content of a tagged PDF document and dumps the structure information to the console window.

[PDF image extraction](/xamarin/get-started/samples.md#imageextract) This sample illustrates couple of approaches to PDF image extraction.

[Read elements across all PDF pages](/xamarin/get-started/samples.md#elementreader) Illustrates how to traverse page display list using ElementReader.

[Undo and/or redo](/xamarin/get-started/samples.md#undoredotest) This sample demonstrates the basics of undoing and redoing changes to a document.

[Build, write, embed elements in PDF pages](/xamarin/get-started/samples.md#elementbuilder) Illustrates how to use PDFNet page writing API, how to embed fonts and images and how to copy graphical elements from one page to another.

## UI samples

{% hint style="info" %}
Please note that **native code** is being used in the following showcase app(s). Apryse SDK for Xamarin provides the same features but the source code for the showcase application(s) is only available in native languages.
{% endhint %}

#### Xamarin.Android

[Android showcase sample app](/android/samples/package-samples/sample-showcase.md) The showcase demonstrates some features of the SDK. To view the edit page content demo, select any of the samples found under `Edit & Manipulate` in the app such as:

* [Modify Page Labels](/android/samples/package-samples/sample-showcase.md)
* [Watermark](/android/samples/package-samples/sample-showcase.md)


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