Convert sys to pnm Online: sys2pnm
You can use Tom's Editor to easily convert images from
Logo.sys .SYS to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Logo.sys is an image format with extension SYS.
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.