Convert ecp to pnm Online: ecp2pnm

You can use Tom's Editor to easily convert images from
ECI Graphic Editor (compressed) .ECP to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

ECP

ECI Graphic Editor (compressed) is an image format with extension ECP.

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.