- Extension
- .g4
- .dcx
- Format
- Binary
- Binary
- Category
- Fax
- Raster Image
- Developer
- Computer Fax Systems (CFS)
- ZSoft
- 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.
- DCX file is a multi-page image file developed by raster file or bitmap file formats. It is generated fro PCX files, so it has a small header that shows the .dcx then a sequence of .pcx data. Popularly used by applications to create and send multi-page fax files.
- MIME Type
- image/g4fax
- image/x-dcx
