Convert dph to pnm Online: dph2pnm
You can use Tom's Editor to easily convert images from
DelmPaint .DPH to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
DelmPaint is an image format with extension DPH.
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.