- Extension
- .g3
- .g4
- Format
- Binary
- Binary
- Category
- Fax
- Fax
- Developer
- CCITT
- Computer Fax Systems (CFS)
- Description
- Fax image created in the CCITT Group 3 compressed format, which is used for digital transmission of fax data and supports 1 bit per pixel; can be viewed by programs such as GIMP and IrfanView.
- Group 4 (G4) used for black and white lossless compression to maintain high-quality images, commonly used in TIFF format compression by fax machines. A picture is seen as black dots and lines on a blank page; the fewer the dots and lines are, the lesser the file size.
- MIME Type
- image/g3fax
- image/g4fax
