Convert gr8 to pnm Online: gr82pnm
You can use Tom's Editor to easily convert images from
Atari GR8 .GR8 to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
GR8
Atari GR8 is an image format with extension GR8.
PNM
PNM images are uncompressed 24 bit RGB images. Can cannot store Alpha channel. PNM images come in 2 types: binary and text. Especially popular on Linux.