This is a belated follow up, but a new twist (I think). So now working with Photo Mechanic and Nitro (File System)…I can add keywords to RAW files in Nitro and see them in Photo Mechanic, but when I add keywords to Apple DNG (iPhone ProRaw) files, they are NOT visible in Photo Mechanic (or other apps including Apple Preview Info). I can add keywords in Photo Mechanic to DNGs (as well as raw files) and Nitro DOES see them.
So I’m not sure how the previous explanation really applies. When Nitro adds keywords to my Fuji “Raf” files, there is an “xmp” file AFTER the raw file, and other apps see it. When Nitro adds keywords to the DNG files, the “xmp” file is BEFORE the file and other software(s) do NOT see it.
I don’t really see the consistency here. I would REALLY like to be able to use Nitro to add initial metadata to my iPhone 17pro (ProRaw) files (DNGs) like I can the raws from my other “real” cameras, but not possible currently as I understand it.
Any chance of a “fix” for this? Thanks….Gary