- Extension
- .pgm
- .djvu
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Jef Poskanzer
- LizardTech
- 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.
- A DJVU file is a compressed image format developed by AT&T and marketed by LizardTech. It is designed to allow content developers to scan high-resolution color pages of books, magazines, comics, catalogs, etc. and publish them on the web.
- MIME Type
- image/x-portable-graymap
- image/vnd.djvu
