HT204478: How Photos handles content and metadata from iPhoto and Aperture
Learn about How Photos handles content and metadata from iPhoto and Aperture
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All replies
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Helpful answers
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Jun 20, 2016 6:46 PM in response to Brian Cameronby Rysz,★HelpfulNo, although there are third-party apps that allow Photos to be used with multiple libraries.
The best approach is to combine your Aperture libraries into one library before migrating it to Photos.
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Jun 21, 2016 12:54 AM in response to Brian Cameronby léonie,To merge your libraries in Aperture make sure you are seeing the prompt "Add or Merge", otherwise you may create duplicates in the merged libraries.
sometimes this prompt is missing. Then it helps to add some duplicate photo intentionally to both libraries to be merged.
Merging libraries needs plenty of extra storage, much more than the combined size of the libraries to be merged. do it on an external drive with enough free storage. The drive needs to be formatted MacOS Extended (journaled).
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Jun 21, 2016 7:30 AM in response to Brian Cameronby LarryHN,You probably are going at this backwards and increasing the chances of problems plus making management and usability greatly reduced
what is "a very large" Aperture library?
In general with Photos having one large library is far preferable to having multiple small libraries
And there is no exporting or importing involved - you simply migrate the Aperture library by dragging it to the Photos icon in the Dock - Photos migrates it using very little additional space since it uses Hard Links to link the originals and previews - Photos saves disk space by sharing images with your iPhoto or Aperture libraries - Apple Support
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