- Extension
- .cals
- .jbg
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- United States Department of Defense (DoD)
- Joint Bi-level Image Experts Group (JBIG)
- 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.
- Created by JBIG (Joint Bi-level Image Experts Group), JBG is a lossless file format that contains both colored and monochrome images. Commonly used to compress fax images, and it has better compression than G3 and G4 compression codecs.
- MIME Type
- image/cals
- image/jbig
