Convert p4i to pnm Online: p4i2pnm

You can use Tom's Editor to easily convert images from
P4I .P4I to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

P4I

P4I is an image format with extension P4I.

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.