- Extension
- .cals
- .pbm
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- United States Department of Defense (DoD)
- Wolfgang Hoschek
- 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.
- 1-bit black and white image; formatted in text format; basic raster image format in which each pixel is represented by a byte that contains a 1 or 0; 1 represents black and 0 represents white pixels.
- MIME Type
- image/cals
- image/x-portable-bitmap
