---
title: "Supported PDF annotation types in Android viewer | Nutrient"
canonical_url: "https://www.nutrient.io/guides/android/annotations/introduction-to-annotations/annotation-types/"
md_url: "https://www.nutrient.io/guides/android/annotations/introduction-to-annotations/annotation-types.md"
last_updated: "2026-06-09T10:25:14.332Z"
description: "Supported PDF annotation types in Android viewer | guide for Nutrient Android SDK with detailed instructions and code examples."
---

# Supported PDF annotation Types on Android

Nutrient supports most common annotation types:

- [Link](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-link-annotation/index.html)

- [Highlight](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-highlight-annotation/index.html), [Underline](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-underline-annotation/index.html), [Strikeout](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-strike-out-annotation/index.html), [Squiggly](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-squiggly-annotation/index.html)

- [Free Text](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-free-text-annotation/index.html)

- [Ink](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-ink-annotation/index.html)

- [Note](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-note-annotation/index.html)

- [Square](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-square-annotation/index.html), [Circle](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-circle-annotation/index.html), [Line](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-line-annotation/index.html), [Polyline](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-polyline-annotation/index.html), [Polygon](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-polygon-annotation/index.html)

- [Widget](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-widget-annotation/index.html) (requires the [Forms component](https://www.nutrient.io/guides/android/forms.md))

- [Image/Stamp](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-stamp-annotation/index.html)

- [Rich Media/Video](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-rich-media-annotation/index.html), [Sound](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-sound-annotation/index.html)

- [Redaction](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-redaction-annotation/index.html) (requires the [Redaction component](https://www.nutrient.io/guides/android/redaction.md))

- [File](https://www.nutrient.io/api/android/nutrient/com.pspdfkit.annotations/-file-annotation/index.html)

These are standard annotations (as defined in the PDF Reference) that can be read and written by many apps, like Adobe Acrobat and Apple’s `Preview.app`.
---

## Related pages

- [Choosing the right annotation format for Android](/guides/android/annotations/introduction-to-annotations/data-formats.md)
- [Retrieve or set the annotation bounding box on Android](/guides/android/annotations/position-and-size.md)
- [What are PDF annotations?](/guides/android/annotations/introduction-to-annotations/what-are-annotations.md)