- Extension
- .pgm
- .vst
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Jef Poskanzer
- Truevision
- 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.
- Raster image based on the Targa Truevision format; can store data up to 32 bits per pixel, with 24 bits for the RGB information and 8 bits for the alpha channel; may also incorporate lossless RLE compression to reduce the file size.
- MIME Type
- image/x-portable-graymap
- image/x-targa
