Well, I forget the previous ones (they were free, so "iffy" and they did nothing), but I am using PhotoSweeper that I bought from the app store. It is a bit confusing, as it doesn't explain well what the choices it offers mean. For example, when I run it just looking at the Photos file (that is 69,000 files but should be about 20,000 without duplicates), it says it found 27,000 and asks if I want to delete them. I wasn't sure which photos it meant the first 2 tries but finally clicked "OK". Then it said it deleted 57 files. I've run it 3 more times and it is always "57 files".
The 1024 files do seem to be duplicates. They show up when I look at all the Photo files and (oddly) they vary in size from the small 100-300KB files I save for use in my blog to the full size originals. I've tried searching for them by the *_1024.jpg* and various combinations of that but they seem to be invisible other than in Photos. Finder isn't helping here.
I've tried PhotoSweeper using sorting by file name, size, picture match (exact because many photos are quite similar, and 90% just to see what it would suggest to delete. But it is always about 27,000 duplicates and exactly 57 suggested for removal. And it doesn't remove them, I guess.
It shouldn't be this hard and I'm not stupid about following app instructions. I've probably put enough time and effort into duplicate photo remover apps that I could have actually deleted them manually by now. Which is my next step if no one has a better suggestion.
I am completely willing to consider that I am just missing "something" about the process.
