Convert pl4 to flif Online: pl42flif
You can use Tom's Editor to easily convert images from
PL4 .PL4 to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
PL4 is an image format with extension PL4.
Free Lossless Image Format is an image format with extension FLIF.