Move photos from one iCloud Photo Library to another?
My parents have an old Mac which is currently signed into their iCloud account with iCloud Photo Library turned on. I want to copy/add all their photos to my iCloud Photo Library.
If I turn off iCloud Photo Library on their Mac and ensure the full version of photos are saved on the Mac, then sign in with my account, will it merge the photos from their old Mac into my iCloud Photo Library (without deleting mine? Thanks
Earlier Mac models