Turns out that Photos does pretty sophisticated library management; enough so that you're not duplicating space if you're migrating from iPhoto or Aperture. If you've migrated an existing iPhoto or Aperture photo library to Photos, Photos creates a brand new library structure but doesn't, in point of fact, duplicate your images. Instead it creates links to the original and preview versions of your images.

1. Iphoto Library Size

When you're looking at your Photos library in the Finder, it includes all of your original images and previews. But the images exist only in one location on your hard drive, even if you have multiple photo libraries.

Here's what Apple has to say for people anxious to pull the delete trigger:

After you migrate your iPhoto or Aperture library to Photos, you might feel tempted to delete your original iPhoto or Aperture library. Because the migrated library takes little additional space, you don't need to delete the original library.

So don't do it, even if you're tempted to.

1. Aug 24, 2015 Once you’ve backed up your old iPhoto library (if you chose to do so), you can proceed with deleting it: Open a new Finder window on your Mac. Click on Pictures in the left hand navigation. If it isn’t there, just search for your pictures folder using Spotlight. You should see two libraries, one.
2. Feb 21, 2020 Step 1. Connect your Time Machine drive to Mac and run Time Machine from System Preference. Scroll the timeline on the right side, click the desired backup (the date of your last backup). Navigate to the backup of your iPhoto library (by default.

If you have Photos open, quit it. Locate the Photos library on your Mac - you will find it in your Pictures folder. Open a Finder window and click on your Mac Home folder (the icon looks like a house and it will probably be identified by your username). Click on Pictures. How to delete iPhoto library on your Mac. Click on the iPhoto Library listing, and without letting go of your mouse or trackpad button, drag it until it’s over top the Trash icon on your. You can select (click on) the iPhoto Library, then right-click on your mouse or Trackpad (Apple will call. How to safely move your Mac's iPhoto library onto an external drive. By Stephen Robles Saturday, January 24, 2015, 11:00 pm PT (02:00 am ET) Today's digital cameras and advanced smartphones like. May 20, 2016 Deleting the iPhoto Library File. Did you backup first? Quit iPhoto and Photos app if either app is open. Open Finder on the Mac and go to your user home folder and then to “Pictures”. Select the “iPhoto Library.library” file and move it to the Trash. BE ABSOLUTELY CERTAIN YOU MADE A BACKUP OF. Dec 18, 2018  Part 2: Can I Delete the Migrated iPhoto Library. After you have migrated iPhoto pictures to Photos app, you can delete an old iPhoto library on Mac directly. There is no need to create a backup before deleting iPhoto library pictures. However, some people worry about the security of the current Photos app. Well, it does not matter a lot.

You can still use your original photo library with iPhoto (version 9.6.1, as of this writing) and Aperture (version 3.6) after you've migrated it to Photos. Just bear in mind that any changes you make in iPhoto or Aperture will be resident only in those applications, not Photos. So if you make new image edits in Aperture or create a new iPhoto album, those will only appear in their respective apps, not Photos.

(Hat tip: Dave Sanderson)

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Iphoto Library Size

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