Is there a way to detect identical pictures used in a powerpoint slide? Do they reference the same resource internally? And if so, how can I check that reference? I'm going through all shapes of a slide and use the "export" command for all pictures to extract them. This usually leads to a lot of duplicates which I want to avoid as good as possible. The only (less elegant and more expensive) solution I found is to export everything, iterate over all images and compare their checksum and delete duplicates afterward. Any ideas? Thanks Daniel
