.PNM File Extension
File TypePortable Any Map Image
|Category||Raster Image Files|
This file is saved in a binary format, which requires a specific program to read its contents.
Bitmap image created in the Portable Any Map format, which was designed to handle several types of portable monochrome, grayscale, and color images; may include raster graphic data in a .PBM, .PGM, or .PPM format; may be stored using binary data or ASCII text.
PNM files store one image and do not use compression.