Convert pi1 to dds Online: pi12dds
You can use Tom's Editor to easily convert images from
Degas/Degas Elite .PI1 to Direct Show Surface
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Degas/Degas Elite is an image format with extension PI1.
DDS are files invented by Microsoft to be used in games, mostly as textures. Images can be compressed to save space but the compression methods defined by DDS are all very fast in terms of coding and decoding.