Convert jpg to ppm Online: jpg2ppm

You can use Tom's Editor to easily convert images from
Joint Photographic Experts Group JFIF .JPG to Portable aNy Map .PPM.
Tom's Editor is a free, online image manipulation and converter program.

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JPG

Joint Photographic Experts Group JFIF is an image format with extension JPG.

PPM

Portable aNy Map is an image format with extension PPM.