- Extension
- .pgm
- .heic
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Jef Poskanzer
- Moving Picture Experts Group
- 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.
- An image file format mainly used in storing cell phone photos and they are saved in the High Efficiency Image Format (HEIF). They store one or more images and the metadata description for each image. Also known as .heif files
- MIME Type
- image/x-portable-graymap
- image/heic
