Just emerging from a little rabbit hole about image metadata, prompted by the message that pops up after uploading images to @Nostrbuild

It seems if you want to remove metadata yourself, Exiftool is the beast to use. It's a command line tool that "everybody" raves about. Definitely super speedy and more thorough than a couple of GUI options I tried, like ImageOptim.

Having said that, I'm curious about how Nostrbuild strip metadata, because the message from a jpg file they upload says something like

{"date:create":"2024-08-27T12:46:16+00:00","date:modify":"2024-08-27T12:46:16+00:00","jpeg:colorspace":"2","jpeg:sampling-factor":"2x2,1x1,1x1"}

That is nothing compared to what Exiftool leaves, or sips or mdls reveal.

Have you guys found some extra juice for stripping metadata or is that message a redacted version?