Hello Reinhard, > what I would try first is to check whether other programs like sam2p > or convert (ImageMagigck) can process the broken files properly.
I don't know what tools the user has, so I cannot rely on any external tools for now. Thank you for your suggestions Patrick (I'll stick for xsize and ysize for now, which seems to be fine except for a LuaTeX warning about an arithmetic overflow or something similar)
