Convert pgm to flif Online: pgm2flif

You can use Tom's Editor to easily convert images from
Portable aNy Map .PGM to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

PGM

Portable aNy Map is an image format with extension PGM.

FLIF

Free Lossless Image Format is an image format with extension FLIF.