With Filestar you get 223 different skills for working productively with Portable Pixmap Image (.ppm) files.
About .Ppm
Name
Portable Pixmap Image
Extension
.ppm
Format
Text
Category
Raster Image
Developer
Jef Poskanzer
Description
A PPM file is a 24-bit color image formatted using a text format. It stores each pixel with a number from 0 to 65536, which specifies the color of the pixel. PPM files also store the image height and width, whitespace data, and the maximum color value.