---
title: projectExtensionData
framework: photos
role: symbol
role_heading: Instance Property
path: photos/phproject/projectextensiondata
---

# projectExtensionData

Data associated with the project extension.

## Declaration

```swift
var projectExtensionData: Data { get }
```

## Discussion

Discussion The total size of stored data is limited to 5 MB; attempting to store more data will result in an error. Don’t include rasterized images that can be locally cached. Limit stored data to compressed project-specific data.

## See Also

### Project Extension Properties

- [hasProjectPreview](photos/phproject/hasprojectpreview.md)