Removing duplicates from Photo Library
I have a mid-2015 MacBook Pro running Big Sur. I have over 1 T of photos stored in my Photos Library on an external hard drive. I have noticed that many photos have both a .jpeg and a .JPG version.
- Which version of the photos should I save? The .jpeg because it's a smaller file size?
- Do I have to review the photos manually? The duplicates weren't detected when the photos were uploaded and they haven't been detected by Gemini 2.
- Would the process be simpler if I upgraded the OS before cleaning the Photo Library?
Thank you for any suggestions.
MacBook Pro 15″, macOS 11.7