Convert apl to pnm Online: apl2pnm
You can use Tom's Editor to easily convert images from
Atari Player Editor .APL to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Atari Player Editor is an image format with extension APL.
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.