- Extension
- .cal
- .ubrl
- Format
- Binary
- Category
- Raster Image
- Other
- Developer
- U.S. Department of Defense
- APH (American Printing House for the Blind)
- Description
- The CALS raster file format, commonly known by the extension ".cal" or ".cals," is a bitmap file format designed primarily for the storage and interchange of digital images, especially in the field of computer-aided design (CAD) and engineering. Developed by the United States Department of Defense, it was intended to standardize the exchange of graphics data for electronic publishing of technical manuals. This format supports monochrome (1-bit) images and is distinguished by its efficient compression methods for reducing file sizes, facilitating easier storage and transmission. Despite its specific initial use case, the CALS raster format has found application in various industries for the archiving and sharing of high-resolution, scanned documents.
- Unicode Braille (uBrl) is a file format that stores information in the form of a braille code, which is a tactile writing system used by people who are blind or have low vision. The file format is used to store text in a way that can be read by a braille device or software.
- MIME Type
- image/cals
- application/vnd.braille
