> 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/annotation/text-annotation.md).

# Add text annotation to a document in UWP

Learn how to add a sticky note to a PDF document and edit PDF annotations with this comprehensive code sample. Enhance your PDFs with hyperlinks, stamps, text, shapes, and more! The Apryse uwp SDK str

To add a sticky note (text annotation) to a PDF Document.

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

```csharp
PDFDoc doc = new PDFDoc(filename);
Page page = doc.GetPage(1);

// Create the sticky note (Text annotation)
Text txt = Text.Create(doc, new Rect( 10, 20, 30, 40 ));
txt.SetIcon("UserIcon");
txt.SetContents("The quick brown fox ate the lazy mouse.");
txt.SetColor(new ColorPt(0,1,0));
txt.RefreshAppearance();
page.AnnotPushBack(txt);
```

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

[Add or edit PDF annotations](/uwp/get-started/samples.md#annotation) Full code sample which shows how to add or edit PDF annotations (e.g. hyperlink, intra-document link, stamp, rubber stamp, file attachment, sound, text, free-text, line, circle, square, polygon, polyline, highlight, squiggly, caret, and ink).


---

# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.apryse.com/uwp/annotation/text-annotation.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
