I have a vector map with all the zip-codes of Denmark. I have taken a picture in each zip-code, and I now want to fit theses pictures into the zip-code polygons (I'm using QGIS). I can add the pictures one by one by changing the layer style to raster, and scaling the image. Seeing that there are almost 600 zip codes in Denmark, and that the pictures might change through time, I would very much like to find an automated way to do this. Hope somebody can help.