- Extension
- .g4
- .azw3
- Format
- Binary
- Binary
- Category
- Fax
- Ebook
- Developer
- Computer Fax Systems (CFS)
- Amazon
- 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 AZW3 file is an eBook created in the Kindle Format 8 (KF8), Amazon's successor to the .AZW format. It supports newer features such as HTML5 and CSS3 support as well as many other formatting capabilities. AZW3 files often include DRM protection and are used as the download format for many Amazon eBooks.
- MIME Type
- image/g4fax
- application/x-mobipocket-ebook
