I have multiple photo libraries on my external hard drive (none on my Mac) for the obvious reason to save space. These libraries are as old as 2008 (and if I want to go really far back, even 2004). I want to save them to my iCloud account.
I have found various recommendations but some contradict each other. Should I first merge them as one library? Can I merge them on my external hard drive? As the library would be massive and a paon to navigate, should I just organize them in year folders? What is the steps you would recommend? Any other advice would be greatly appreciated.