- Extension
- .pgm
- .xbm
- Format
- Binary
- Text
- Category
- Raster Image
- Raster Image
- Developer
- Jef Poskanzer
- The X Consortium
- 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.
- Bitmap image used by the X Window System (X11), a graphical user interface (GUI) used to manage networked client-server computers; stores a monochrome image that is written as plain text in the C programming language.
- MIME Type
- image/x-portable-graymap
- image/x-xbitmap
