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 is an image format with extension P4I.
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.