I'm downloading non-georeferenced .png image files from a WMS in a grid of 5x5. The corners of the boundingbox are known and now I want to automatically georeference these files. What is the fastest way to do this? Should I go for a world file (and how?) or should I just georeference every image on its own (and how?).
The tiles will be downloaded every day again and used for detecting the changed regions.