- Extension
- .pgm
- .isobrl
- Format
- Binary
- Category
- Raster Image
- Other
- Developer
- Jef Poskanzer
- ISO/TC 173/SC 2
- Description
- A PGM file is a grayscale image file saved in the portable gray map (PGM) format and encoded with one or two bytes (8 or 16 bits) per pixel. It contains header information and a grid of numbers that represent different shades of gray from black (0) to white (up to 65,536). PGM files are typically stored in ASCII text format, but also have a binary representation.
- ISO/TR 11548-1 Braille is a file type used for storing braille documents in a digital format. It is based on the ISO/TR 11548-1 standard and can be used for storing textual documents in a standardized way. It is used in many countries and is especially helpful for people who are blind or visually impaired.
- MIME Type
- image/x-portable-graymap
- application/vnd.braille+iso24735-1
