Convert ozb to pnm Online: ozb2pnm
You can use Tom's Editor to easily convert images from
Mu Online Bitmap .OZB to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Texture format used by Mu Online game.
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.