---
title: kCGImageAuxiliaryDataInfoData
framework: imageio
role: symbol
role_heading: Global Variable
path: imageio/kcgimageauxiliarydatainfodata
---

# kCGImageAuxiliaryDataInfoData

The auxiliary data for the image.

## Declaration

```swift
let kCGImageAuxiliaryDataInfoData: CFString
```

## Discussion

Discussion The value of this property is a CFData. Use the kCGImagePropertyAuxiliaryDataType property to determine the format of this data.

## See Also

### Auxiliary Image Data

- [kCGImagePropertyAuxiliaryData](imageio/kcgimagepropertyauxiliarydata.md)
- [kCGImagePropertyAuxiliaryDataType](imageio/kcgimagepropertyauxiliarydatatype.md)
- [kCGImageAuxiliaryDataInfoDataDescription](imageio/kcgimageauxiliarydatainfodatadescription.md)
- [kCGImageAuxiliaryDataInfoMetadata](imageio/kcgimageauxiliarydatainfometadata.md)