- Extension
- .pgm
- .ubrl
- Format
- Binary
- Category
- Raster Image
- Other
- Developer
- Jef Poskanzer
- APH (American Printing House for the Blind)
- 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.
- 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/x-portable-graymap
- application/vnd.braille
