- Extension
- .cals
- .g3
- Format
- Binary
- Binary
- Category
- Raster Image
- Fax
- Developer
- United States Department of Defense (DoD)
- CCITT
- Description
- The CALS Raster Graphic File, having the extension .cals, is a type of image file format primarily used for the storage and exchange of digital images, especially in the context of technical and engineering documents. Developed in the mid-1980s by the United States Department of Defense, the CALS format was part of an initiative to standardize electronic document management and interchange, particularly for military and government applications.
- 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.
- MIME Type
- image/cals
- image/g3fax
