Convert pdb to pnm Online: pdb2pnm

You can use Tom's Editor to easily convert images from
Palm Pilot Image .PDB to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

PDB

Palm Pilot Image is an image format with extension PDB.

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.