Convert iim to pnm Online: iim2pnm
You can use Tom's Editor to easily convert images from
InShape IIM .IIM to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
InShape IIM is an image format with extension IIM.
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.