Convert du2 to pnm Online: du22pnm

You can use Tom's Editor to easily convert images from
DU2 .DU2 to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

DU2

DU2 is an image format with extension DU2.

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.