Convert mpp to pnm Online: mpp2pnm
You can use Tom's Editor to easily convert images from
Multi Palette Picture .MPP to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Multi Palette Picture is an image format with extension MPP.
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.