Convert bl3 to pnm Online: bl32pnm
You can use Tom's Editor to easily convert images from
DEGAS Elite block .BL3 to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
DEGAS Elite block is an image format with extension BL3.
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.