To combine Photos libraries, export the photos from a previous library or library you no longer want to use, then import the photos to your primary library.
The easiest solution would be to put the old iPhoto database together with the iPhoto Library updater on a USB-stick or an external drive, then hook it up to a Mac that hasn’t been (or can’t be) upgraded to macOS 10.15 Catalina, and run the iPhoto Library updater on that Mac to upgrade your old iPhoto database. In this video we look at how you import your iPhone library into the Photos app on the Mac. In this video we look at how you import your iPhone library into the Photos app on the Mac. How to Transfer iPhoto Library to Photos App on Mac OS X Yosemite. Click on Finder and Go to your Pictures folder. You’ll see Photos Library and iPhoto Library. Open Photos Library and make sure there is nothing inside. Now, delete the Photos Library as usually to prevent it from creating multiple files. Copy the old library into the Pictures folder on your new iMac. If you have a new library there then move it to the Trash bin beforehand. Then launch iPhoto and it will open the old library and convert it to the newer version if necessary. There is no importing necssary.
You need to move the whole library file when you want to transfer Mac to Mac. Or export your photos. More information on that below. When Your Library is An iPhoto Library. When the photographs you want to transfer are in your Mac’s iPhoto app on an old Mac. There are a few things to know; Apple dropped the iPhoto app and replaced it with Photos.
Export photos from your library
- Press and hold the Option key as you open the Photos app.
- Select the Library that you no longer want, then click Choose Library.
- Choose View > Photos > Library, then click All Photos.
- Choose Edit > Select All to select all items in your library.
- Choose File > Export, then choose an option:
- To export your photos as-is and preserve any edits, choose “Export [number] Photos,” then select any additional options.1
- To export your photos as unmodified originals (without edits), choose “Export Unmodified Original for [number] Photos,” then select any additional options.2 If your photos include IPTC metadata (such as titles or keywords) that you want to keep, select the Export IPTC as XMP checkbox.
- Click Export, choose a destination to save your photos, click New Folder and enter a name for the folder, click Create, then click Export.
Import photos to your primary library
- Quit Photos, then press and hold the Option key as you open the Photos app.
- Select the library that you want to import your photos to, then click Choose Library.
- Choose File > Import.
- In the Import window, navigate to the Finder folder that contains the photos and videos that you want to import.
- Select the photos and videos to import, then choose Review for Import.
- Click Import All New Photos.
If you created subfolders when you exported the items and you want to create an Album for each subfolder, follow these steps:
- In the Import window, select the folders you want to import as albums.
- Select the Keep Folder Organization checkbox in the upper corner of the window. The top level folder is imported as a folder in Photos, and subfolders are imported as albums.

Save space by deleting the previous library
After you combine libraries and confirm your photos imported successfully, you can save space by deleting the library that you no longer need. Find the first Photos library and move it to the trash, then choose Finder > Empty Trash to permanently delete the files.
Import Old Iphoto Library On Nas
1.To find only edited photos in your library, you can create a smart album that has“Photo is edited” as a criteria for the album.
2. If your photos aren't captured on an iPhone or iPad, you may need to export photos in their original format.
How to Transfer iPhoto Library to New Mac (Copy & Move pictures from old Mac to new Mac)
Import Old Iphoto Library On External
Here is a how-to video of transferring iPhoto library(all of your pictures) to your new Mac computer(Macbook Pro, Macbook Air, iMac). Did you know that you can migrate all of your old photos to new Macs. It is not that hard and you can do it too! All you need is an external hard drive that is bigger than your iPhoto library file size. We will show you how to backup and transfer all of your pictures on your Mac, and how to import your old iPhoto library to the new Photos app. In our case, we are transferring our iPhoto library(older Macbook Pro) to the newer Photo app(new Macbook Pro) Let’s get it started!