---
title: NSBitmapImageRep.TIFFCompression.ccittfax3
framework: appkit
role: symbol
role_heading: Case
path: appkit/nsbitmapimagerep/tiffcompression/ccittfax3
---

# NSBitmapImageRep.TIFFCompression.ccittfax3

CCITT Fax Group 3 compression.

## Declaration

```swift
case ccittfax3
```

## Discussion

Discussion Used for 1-bit fax images sent over telephone lines.

## See Also

### Constants

- [NSBitmapImageRep.TIFFCompression.none](appkit/nsbitmapimagerep/tiffcompression/none.md)
- [NSBitmapImageRep.TIFFCompression.ccittfax4](appkit/nsbitmapimagerep/tiffcompression/ccittfax4.md)
- [NSBitmapImageRep.TIFFCompression.lzw](appkit/nsbitmapimagerep/tiffcompression/lzw.md)
- [NSBitmapImageRep.TIFFCompression.jpeg](appkit/nsbitmapimagerep/tiffcompression/jpeg.md)
- [NSBitmapImageRep.TIFFCompression.next](appkit/nsbitmapimagerep/tiffcompression/next.md)
- [NSBitmapImageRep.TIFFCompression.packBits](appkit/nsbitmapimagerep/tiffcompression/packbits.md)
- [NSBitmapImageRep.TIFFCompression.oldJPEG](appkit/nsbitmapimagerep/tiffcompression/oldjpeg.md)