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Jan 06, 2018 I am running 10.13.2 on my Mac mini. I have several photo libraries that I would like to merge while weeding out duplicates. And I would need the metadata to be transferred; ideally albums too. Jun 21, 2017 Multiple Libraries in Photos and iPhoto. How To Set Up And Manage Multiple iPhoto Libraries - iPhoto Tutorial. How To Move Mac Photos Library To An External HDD macOS Mojave.

• Can You Merge Photo Libraries On Mac
• Merge Photo Libraries On Mac
• Merge Photo Library Mac Software

With cameras so readily available, it’s easy to accumulate more photos than you know what to do with. You probably take dozens of pictures when you go out, meet up with friends, or go on vacation. And while taking photos is fun, organizing them is work. But it doesn't have to be that way. In this article, we’ll show you how to organize photos on your Mac in three easy steps:

1. Merge your photo libraries in the Photos app
2. Delete unwanted photos
3. Group pictures using Smart Albums in Photos

Step 1. Consolidate all your photos in the Photos app for Mac

When macOS Yosemite was released in 2014, the Photos app finally came to Macs, replacing outdated iPhoto. Now with Photos, you’ve got more organization tools, including the ability to switch between libraries and merge them.

Can You Merge Photo Libraries On Mac

To start with, let’s get all of your photos from different places onto your Mac. Here’s what you should do:

1. Use iCloud Photo Library to ensure that everything you take on an iOS device is synced automatically with your Mac. Alternatively, AirDrop photos from your iPhone and/or iPad to your Mac.
2. Import photos from external drives to the Photos app on your Mac
3. Import photos from your camera
4. If you have several libraries in the Photos app, merge them into one

Once everything is on your Mac and in one library, it’s easier to get organized. Let’s take a look at a few questions most people have when they juggle several Photos libraries.

How do I switch libraries in Photos?

Libraries in Photos can come from a few different sources, including external devices such as cameras and iPhones. If you were using iPhoto prior to Photos, each device and source will have a Systems Photo Library. You can switch between them, and here is how you do that:

1. Go to Launchpad
2. Hold down the Option key, and then double-click on the Photos app to see the libraries you have on this device
3. Now you can move easily from one photo library to another and open the one you want by double-clicking it

How to create a new Photo library on Mac?

Creating a new library is easy. If Photos is open, you’ll need to quit and reopen to create a new library:

Merge Photo Libraries On Mac

1. Hold down the Option key
2. Double-click on the Photos apps
3. Click the Create New button, then choose Library
4. Give your new library a name and click OK

How to merge two or more Photos libraries?

At present, there is no native macOS tool for merging libraries in Photos. Essentially, what you’ll be doing is moving all pics to one new library. So, create one as described above, and then follow these steps:

1. Launch Photos holding down the Option key and select one the libraries you want to merge
2. In the menu bar, click Edit > Select All
3. Again in the menu bar, select File > Export. Now you’ve got the following options:
   • Export Unmodified Original. This will export every image in these libraries, excluding any edits or changes made to them.
   • Export [number of photos you want to export] Photos, which gives you the option to pick a format and select Full Size. That will export your photos as they are, with any edits you’ve made, in TIFF, PNG, or JPEG formats.
4. Pick where they’re going (this could be a folder on your Mac or a connected external drive, for example)
5. Repeat these steps for the other libraries you want merged
6. Now close Photos and re-open using Option to select the library you are merging these photos into
7. Either use File > Import or drag the exported photos into the library

How do I delete a Photo library from my Mac?

If you want to delete a library, it’s super easy. You just navigate to the Pictures folder on your Mac, locate the library you want gone, and move it to the Trash. However, you’ll want to make sure you’ve got all the images and videos out of it first. Export them like we described in the previous section, and then trash the library.

Step 2. Remove duplicates and other useless photos

Now that you've merged libraries — which can take a while if you’ve got a lot of photos scattered across different locations — you’ve probably got a whole load of duplicates and similar images. Chances are, you had the same photo on an external HDD and on your Mac and now it’s duplicated, or you had a dozen slightly different variations of the same shot. Sure, you might want to keep one or two, but do you really need the other 11 wasting space on your Mac? Probably not. Here is how you delete redundant photos from a Mac without it taking all evening.

How to delete duplicates in Photos

1. Download Gemini 2 for Mac and launch it
2. Click Scan for Duplicates
3. It will scan every photo, album and folder on your Mac, including those on any connected external hard drives and imported from the iCloud Photo Library. Once complete, click Review Results.
4. Gemini has a photo preview mode, so you can see every image, including metadata. Your duplicates are grouped under Exact Duplicates > Images, and similar photos will be under Similar > Images. Use the icon at the top to see a grid view, making it easier to identify which copy you want to delete.<
5. Tick the box next to each image you want to delete, then click Remove

Gemini places these in a separate folder in Photos (Gemini Duplicates), giving you a possibility to look through the images once again before deleting them for good. For more information, this article is well worth a read.

Step 3. Use Smart Albums in Photos to organize your pics

After merging your libraries and clearing out duplicates and similar images, take photo organizing one step further and group the remaining pics with Smart Albums. Let’s take a look at how to use this fantastic feature of the Photos app to your advantage.

What are Smart Albums in Mac’s Photos app?

Smart Albums are a way of grouping images by the parameters you set. Maybe you’ll want an album to contain photos taken last Christmas, or you’d rather group all the pics of your kid together. All that and more can be done with a Smart Album. As is the case with a regular Photos album, you can edit and delete it.

Merge Photo Library Mac Software

How to make a new Smart Album in Photos

Creating a new Smart Album is simple:

1. Launch Photos
2. Click the + button next to My Albums in the sidebar
3. Select Smart Album<
4. Give your Smart Album a name
5. Choose the Parameters, e.g. “kids,” “days out,” “Holiday 2018.” You can modify these at any time.
6. Click OK to create

By developing a system (e.g., photos are grouped into albums by date taken) and using Smart Albums, you’ll make sure your photo library is easy to navigate, even if it contains thousands of photos from 2001 and up until now.

That’s it, hope this short guide helps you cope with your photo overload. And remember: the best way to organize photos on your Mac is to keep your library lean and manageable — free from clutter and useless copies. Gemini 2 will gladly help with that.

These might also interest you:

Merging Photos libraries

Update (11/3/2015): PowerPhotos 1.1 now supports library merging!

Unlike iPhoto Library Manager, PowerPhotos does not yet have the capability to merge libraries together. This is something I’d like to add to PowerPhotos, though I can’t make any concrete promises, since doing so partially depends on whether Photos itself adds a few necessary enhancements. In the meantime, since I get asked about this a lot, I thought I’d put up a quick summary of the existing methods to get your content all together into a single Photos library.

Merge your iPhoto libraries beforehand

At this point, most people looking to merge libraries together have existing iPhoto or Aperture libraries that they’re either planning to migrate to Photos, or have already done so. Since merging options with Photos itself are very limited, if you do want to merge your libraries, it will be much easier to first merge everything together as iPhoto libraries, then take the resulting merged iPhoto library and migrate *that* to Photos afterward.

If you haven’t migrated any of your existing libraries yet, then simply use iPhoto Library Manager to merge the libraries together first, then open the merged library in Photos to let it perform the migration (Aperture can also be used to merge iPhoto libraries, though it doesn’t perform duplicate detection like iPLM does). If you have already migrated some/all of your iPhoto libraries though, you may still be able to follow this route. Photos leaves the original iPhoto library intact after performing the migration, so as long as you haven’t deleted the iPhoto library yourself, you should be able to go back and perform the merge, then migrate the merged library to Photos.

To migrate an iPhoto library a second time, the easiest way is to use the File > Migrate iPhoto Libraries command in PowerPhotos. Just check the box next to the iPhoto library and click Migrate, and PowerPhotos will take care of the details. To do it without PowerPhotos, you’ll need to open the library in iPhoto first, and it should give you a brief messing saying that the library has been migrated to Photos already. Click the “Open in iPhoto” button, then close the library back up. Then, take the iPhoto library and drop it on the Photos icon in the dock, and it will perform the migration a second time.

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If you have imported any newer photos into Photos since you performed your first migration, those photos will not have been imported into iPhoto, and thus will be missing from the merged library. If this is the case, you’ll just need to either export those photos from the first Photos library that you migrated, then import them into the second library, or just reimport/redownload them from your iPhone or wherever they may have come from.

Use iCloud to merge your content

The other technique that can be used here is to merge everything together by uploading it into your iCloud Photo Library. This will work with any Photos library, whether it was migrated from iPhoto originally or not, and can be used to merge libraries on different Macs (though they must be using the same iCloud account). The basic workflow for this is:

1. First, you’ll want to choose which one of your libraries you want to ultimately be the merged library, that will ultimately hold all the content.
2. Open that library in Photos, open the preferences window, and click the “Use as System Photo Library” button. Then, in the iCloud section of the preferences, enable iCloud Photo Library. Make sure that the “Download Original to this Mac” option is enabled.
3. Photos will start syncing your library with iCloud, uploading all of the full size photos from your Photos library.
4. If you already have other devices with iCloud Photo Library enabled (e.g. your iPhone or iPad), in addition to uploading all the photos in your Photos library, it will also download any photos that have already been synced with those devices.
5. Once that library has been fully synced (this may take quite some time if the library is large, even multiple days), open a different library in Photos, and repeat the same steps. The content from the second library will be added to what’s already in iCloud Photo Library.
6. By default, syncing the second library with iCloud will also download all the content from the first library into the second library onto your Mac. However, if you enable the “Optimize Mac Storage” option in the iCloud preferences in Photos, that will only initially download smaller thumbnail versions of each photo, which can speed up this part of the process and use less disk space and bandwidth.
7. If you have more than two libraries, repeat the same steps for each library you want to merge.
8. Once you’ve processed the rest of the libraries, open the first one up again, enable iCloud Photo Library on it, and let it redownload all the full sized photos that were uploaded from the other libraries.

While this is an effective way to get your libraries merged together, there are a few significant downsides:

1. If you have a significant amount of photos that you need to merge together, it’s going to take a lot of time, bandwidth, and disk space to perform all of this uploading and downloading from iCloud. For really large collections, you may be looking at a project spanning multiple days or even weeks.
2. iCloud only provides 5 GB of storage for free, so if your collection exceeds that (which is not difficult), you’ll need to purchase one of Apple’s larger storage plans, at least while you’re doing all the syncing. If you’re not interested in using iCloud Photo Library in the long run, it is possible to bump up your storage for a short time, remove the photos from iCloud once you’ve gotten everything downloaded back to your Mac, then move your account back down to the basic storage plan.
3. If you have an iOS device also synced with iCloud, it will start to download all the content that you’re uploading, which can sometimes eat up bandwidth and battery life. You may want to enable the “optimize storage” option in the Photos section of the Settings app on your iOS device before starting, or just turn off iCloud Photo Library altogether if you want to prevent that.
4. There are a few limitations to what will sync through iCloud, which you can read about here

Those are the main two techniques that can be used to merge your photos together into a single Photos library. Each of them has its downsides, but hopefully if you want to get all your photos in one place, one of this options will work for you.