Convert rp to pnm Online: rp2pnm

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

Go to Tom's Editor

RP

Rainbow Painter is an image format with extension RP.

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.