Convert jfif to pnm Online: jfif2pnm

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

Go to Tom's Editor

JFIF

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

PNM

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.