PNM Converter Online
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.
You can use Tom's Editor to easily convert images from
Portable aNy Map .PNM to multiple other formats, like PNG, JPEG, GIF and many more.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor