- Extension
- .ps
- .pgm
- Format
- Binary
- Binary
- Category
- Vector Image
- Raster Image
- Developer
- Adobe Systems
- Jef Poskanzer
- Description
- A PS file is an image saved in the PostScript page description language. It may contain vector graphics, raster graphics, and text. PS files can be printed directly by a PostScript printer (i.e., containing a Raster Image Processor) without being opened in an application.
- 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.
- MIME Type
- application/postscript
- image/x-portable-graymap
