---
title: Creating Photo Editing Extensions
framework: photokit
role: article
role_heading: Article
path: photokit/creating-photo-editing-extensions
---

# Creating Photo Editing Extensions

Provide custom functionality in the Photos app by bundling an app extension.

## Overview

Overview You can incorporate your app’s features directly into the Photos app in iOS or macOS by building an app extension. A photo-editing app extension can enable people to edit media, apply your app’s filter effects, build slideshows, books, or custom content, such as a collage,  right in Photos app using code that you supply. Implement and bundle the app extension Adopt the PHContentEditingController protocol to create an app extension that adds to the photo editing options and capabilities in the Photos app. Creating such an extension also requires using the following classes from the Photos framework: PHContentEditingInput—To reference the photo or video to be edited PHContentEditingOutput—To save the results of an edit PHAdjustmentData—To describe an edit operation Include the app extension in your app bundle and the system installs it in Photos at the same time someone installs your app. note: If your app runs on a platform other than those listed above, the platform ignores your app extension.

## See Also

### Articles

- [Delivering an Enhanced Privacy Experience in Your Photos App](photokit/delivering-an-enhanced-privacy-experience-in-your-photos-app.md)
- [Fetching Objects and Requesting Changes](photokit/fetching-objects-and-requesting-changes.md)
- [Loading and Caching Assets and Thumbnails](photokit/loading-and-caching-assets-and-thumbnails.md)
- [Displaying Live Photos](photokit/displaying-live-photos.md)