Convert psb to pnm Online: psb2pnm

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

Go to Tom's Editor

PSB

Print Shop is an image format with extension PSB.

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.