Convert bob to pnm Online: bob2pnm

You can use Tom's Editor to easily convert images from
Bob Ray Tracer Bitmap .BOB to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

BOB

Bob Ray Tracer Bitmap is an image format with extension BOB.

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.