Convert shp to pnm Online: shp2pnm

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

Go to Tom's Editor

SHP

Movie Maker Shape is an image format with extension SHP.

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.