Convert dib to pnm Online: dib2pnm

You can use Tom's Editor to easily convert images from
Microsoft Windows Device Independent Bitmap .DIB to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

DIB

Microsoft Windows Device Independent Bitmap is an image format with extension DIB.

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.