Convert lbm to pnm Online: lbm2pnm

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

Go to Tom's Editor

LBM

Amiga IFF is an image format with extension LBM.

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.