Photos double-saved under documents

Hi,

Photo libraries are just simple folders/packages and can be stored anywhere. I'm guessing that at some point in the past you created a new library or made a copy of your main library.

I would do the following:

1. Open Photos.app., press CMD , [COMMA] and in the general tab it will give you the folder path to the library that you have open - this is likely to be your 'primary' library.
2. Close Photos.app and go to the 'other' library and double click it to open it, i.e. if the library you opened in [1] above is in the Documents folder then open the library in the Fotos folder and vice versa. If you recognise all of the photos in this library as being duplicates of those photos in the primary library then you can delete this library. Although I would recommend moving it to an external HD until you are happy that all of the photos in this second library are duplicates of those in the primary library.
3. HOWEVER, if some or all of the photos in the library are different to those in the primary library then you have two choices - either merge the two libraries or maintain the two separate libraries. You may want to move the library that is in your documents folder to the Fotos just to tidy up your files.

That's not a cumulative list. It doesn't add up. They're classified under two headings. They don't take up any more space.