---
title: kCGImagePropertyJFIFIsProgressive
framework: imageio
role: symbol
role_heading: Global Variable
path: imageio/kcgimagepropertyjfifisprogressive
---

# kCGImagePropertyJFIFIsProgressive

Whether there are versions of the image of increasing quality.

## Declaration

```swift
let kCGImagePropertyJFIFIsProgressive: CFString
```

## See Also

### Quality Information

- [kCGImagePropertyJFIFXDensity](imageio/kcgimagepropertyjfifxdensity.md)
- [kCGImagePropertyJFIFYDensity](imageio/kcgimagepropertyjfifydensity.md)
- [kCGImagePropertyJFIFDensityUnit](imageio/kcgimagepropertyjfifdensityunit.md)