As an OS X user you likely have at least some of your photos stored in Apple’s provided Photos application, and by doing so, you can use them with iCloud services, and in applications that interface with OS X’s media sharing services. However, there might be times where you want to keep some photos separate from others, and manage them in more private ways than having them accessible by other applications and services.
Apr 22, 2015 How to use multiple photo libraries with Photos for Mac. Photos for Mac lets you work with multiple libraries. Learn how to choose a default library, open another library, and merge multiple. Nov 07, 2011 Longtime Mac users often have pictures scattered across several different machines in multiple iPhoto libraries. Sometimes it’s nice to merge everything together when upgrading to a.
Creating a new library
Creating a new library for your various projects is relatively simple. First quit Photos, then launch it while holding the Option key, and you should see the library manager window appear. In here, you should see your current library listed, but also have the option to create a new library. Once created, you can then drag and drop or otherwise import the photos you want, and this new library will be the default one used when Photos launches.
By creating multiple libraries in this manner, you can keep projects separate and also spread out where you have your photos stored your library’s location, including storing it on a secondary partition, an external drive, or on a network attached storage (NAS) device.Switching libraries
With multiple libraries on your Mac, you can switch between them very easily using two methods. The first is using the same library manager, so simply quit and relaunch Photos with the Option key held, and you can then select your library. However, an even easier approach is to simply open any of your photo libraries directly in the Finder, and it will open in Photos and become the default library used. With this approach, simply place the libraries or aliases to them in a convenient location, and then open them directly, instead of opening the Photos application itself.
The library chooser gives you a list of libraries that are in default locations on your Mac. You can use this panel to create new libraries, or choose those in non-standard locations like network storage drives.
The real issue with multiple libraries is not which library is the default opened with Photos, but which is used as your System Library, that is, the one that third-party services like iCloud and other applications will reference when they are instructed to access your photo library. To change this, you need to go to the Photos preferences and click the button to use the current library as the System Library.
The caveat here is that in order to use a library with iCloud and other services, it must be stored on a volume that is formatted to Apple’s native HFS+ (Mac OS Extended) format. You can check this on any locally-attached drive by selecting it in the Finder and pressing Command-i to reveal the information window. Then expand the General section, where you should see its format listed.
This user tip has been moved to: Notes on Merging Photos Libraries, 2019 Version
The older version can no longer be edited without destroying the formatting.
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When merging two photo libraries we usually want a lossless merge:The original photos and the edited versions should be merged into the merged library as master-version pairs, so it will be possible to revert edited photos to the original.The library structure with albums, smart albums should be preserved in the merged library.All metadata, including the faces labels should be migrated.The products (books, cards, calendars, slideshows) should be migrated.
Idk if anyone else has this issue. The reason I need this is because I have music I often don’t find on Apple Music and download it on my computer but in order to add it to my phone I first need to disable iCloud Music library in settings which deletes all my Apple Music downloads and then add the song and then re enable iCloud music and re download all my Apple Music. Import music from itunes library to mac laptop.
Written for Photos 2.0 on macOS 10.12.4 or older:There is currently no completely lossless way to merge Photos Libraries, because Photos does not support importing one Photos Library into another library. All work-around methods are compromises. There is no lossless merging of Photos Libraries other than iCloud Photo Library, and even the merging in iCloud will not include the faces albums and the print products.
If you are planning to migrate your photo libraries from Aperture or iPhoto to Photos and own Aperture 3.6, merge your libraries in Aperture before the migration while you still can use Aperture as described here: Aperture 3.3: How to use Aperture to merge iPhoto libraries - Apple SupportMake backup copies of the libraries before you try that. How to find itunes library on mac.
You will have to recreate the albums as well.Merge the libraries with PowerPhotos: PowerPhotos is a tool to manage Photos Libraries. You can easily browse libraries in turn and move photos between libraries. Merging with PowerPhotos is fast (https://www.fatcatsoftware.com/powerphotos/. It will migrate the metadata and the albums, but you have to decide, if you want to use the originals or the edited versions. So you will either lose the editing work or the high quality originals or create redundancy by merging twice in two passes, once to transfer the originals, and then the edited versions. You will have to add a pass to remove duplicates afterward. See chapter six in the PowerPhotos manual: : https://www.fatcatsoftware.com/powerphotos/Help/merging%20libraries.htmlAnother option would by to keep both libraries separate and use PowerPhotos to browse the libraries and to transfer selected albums as you go.iCloud Photo Library would be the best option. Merging with PowerPhotos the second best.Update for Photos 3.0 on macOS 10.13:Photos 3.0 will also sync the recognized faces when you merge two Photos 3.0 libraries in iCloud. projects do still not sync to iCloud.