---
title: kCGImagePropertyDNGRawDataUniqueID
framework: imageio
role: symbol
role_heading: Global Variable
path: imageio/kcgimagepropertydngrawdatauniqueid
---

# kCGImagePropertyDNGRawDataUniqueID

A 16-byte unique identifier for the raw image data.

## Declaration

```swift
let kCGImagePropertyDNGRawDataUniqueID: CFString
```

## See Also

### Image File Data

- [kCGImagePropertyDNGPrivateData](imageio/kcgimagepropertydngprivatedata.md)
- [kCGImagePropertyDNGMakerNoteSafety](imageio/kcgimagepropertydngmakernotesafety.md)
- [kCGImagePropertyDNGSubTileBlockSize](imageio/kcgimagepropertydngsubtileblocksize.md)
- [kCGImagePropertyDNGRowInterleaveFactor](imageio/kcgimagepropertydngrowinterleavefactor.md)
- [kCGImagePropertyDNGBackwardVersion](imageio/kcgimagepropertydngbackwardversion.md)
- [kCGImagePropertyDNGVersion](imageio/kcgimagepropertydngversion.md)