- Extension
- .g4
- .heic
- Format
- Binary
- Binary
- Category
- Fax
- Raster Image
- Developer
- Computer Fax Systems (CFS)
- Moving Picture Experts Group
- Description
- 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.
- An image file format mainly used in storing cell phone photos and they are saved in the High Efficiency Image Format (HEIF). They store one or more images and the metadata description for each image. Also known as .heif files
- MIME Type
- image/g4fax
- image/heic
