- Extension
- .pgm
- .icns
- Format
- Binary
- Binary
- Category
- Raster Image
- Developer
- Developer
- Jef Poskanzer
- Apple
- 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.
- It is an icon image file used to show application icons in the macOS Finder and macOS dock. It contains one or several .PNG images and it supports 1bit and 8-bit alpha channels.
- MIME Type
- image/x-portable-graymap
- image/x-icns
