- Extension
- .cals
- .ppm
- Format
- Binary
- Text
- Category
- Raster Image
- Raster Image
- Developer
- United States Department of Defense (DoD)
- Jef Poskanzer
- 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.
- A PPM file is a 24-bit color image formatted using a text format. It stores each pixel with a number from 0 to 65536, which specifies the color of the pixel. PPM files also store the image height and width, whitespace data, and the maximum color value.
- MIME Type
- image/cals
- image/x-portable-pixmap
