Photos in your System Photo Library are available in apps like iMovie, Pages and Keynote. You can also sync them to iOS devices and Apple TV via iTunes. And if you want to use your own images as your desktop picture or screen saver, the images need to be in your System Photo Library before you can select them in System Preferences.

If you have only one photo library, then it's the System Photo Library. Otherwise, the first photo library that you create or open in Photos will become the System Photo Library. If you have more than one library, you might need to designate a System Photo Library, so other apps can access the photos and videos you want them to use.

How to export photos library mac to pc. Follow these steps to designate a System Photo Library:

  • Feb 07, 2017  You can make the Pictures folder visible in the sidebar of the Finder window, if you enable it in the Finder Preferences. Click somewhere on the empty Desktop to bring the Finder forward. The go to the Finder menu in the main menu bar and open 'Finder Preferences'. In the Sidebar tab of the Preferences panel check 'Pictures' and any other item you want to see in the sidebar.
  • May 07, 2015  A window will pop up with a number, which in my Mac’s case was over 236GB between a number of different photo libraries — Apple’s Photo Booth, Aperture, iPhoto, and Photos, just to name a.

Apr 27, 2019  Photos.app- Preferences.- General- Library Location:, then click Show in Finder to show Photos Library.photoslibrary in Finder. By default, the Photo library are stored in /Pictures/Photos Library.photoslibrary. Backup the Photo library. Copy the whole Photos Library.photoslibrary folder to the external USB drive or other place. Store imported files outside the Photos library. In the Photos app on your Mac, choose Photos Preferences, then click General. Deselect the “Copy items to the Photos library” checkbox. Now, when you import photos or video, Photos leaves the files in their original. Apr 29, 2017  So many Mac User keep asking me how do they find their photo after finish syncing in Photo library on Mac. So, I decide to make this video up as.

  1. Quit Photos.
  2. Hold down the Option key, then open Photos. One of the photo libraries is already designated as YourLibraryName (System Photo Library).
  3. Choose the library you want to designate as the System Photo Library.
  4. After Photos opens the library, choose Photos > Preferences from the menu bar.
  5. Click the General tab.
  6. Click the Use as System Photo Library button.

If you open a second or different library in the Photos app, and you haven't designated it as the System Photo Library, other applications will use photos from the original System Photo Library. Hold down the Option key when you open Photos to see which library is set as the System Photo Library.

iCloud and the System Photo Library

You can use iCloud Photos, Shared Albums and My Photo Stream only with the System Photo Library. If you choose a different library in Photos without designating it as the System Photo Library, the iCloud tab in Photos preferences is disabled:

If you designate a new library as the System Photo Library and then turn on iCloud Photos, the photos and videos in the new library will merge with those already in your iCloud Photos. If you want to keep the contents of your photo libraries separate, don’t turn on iCloud Photos for more than one library in Photos.

If you want your Mac's photos to wirelessly sync to all your other iOS devices and computers, you want to set up iCloud Photo Library: Apple's photo sync service lets you back up your images on all your devices, as well as access them — online or offline — on said devices. If you're willing to pay for the extra iCloud storage space, you can store an incredible amount of photos and videos, all accessible at the touch of a button or multi-touch screen.

Here's how to set it up on your Mac and get everything configured to your liking!

How to set up iCloud Photo Library on your Mac

  1. Launch the Photos app on your Mac.
  2. Select the Photos menu in the upper left corner of your screen.
  3. Go to Preferences.
  4. Click on the iCloud tab.

    Source: iMore

  5. Check 'iCloud Photos.' This will begin uploading any and all images you have stored in the Photos app to iCloud.

    Source: iMore

How to optimize your photo and video storage

If you routinely shoot 4K video or high-quality images on your iPhone, iPad, or DSLR, you may run out of storage space fast. (I have a 1TB iMac, but also have almost a terabyte of 4K video stored in iCloud — it gets unwieldy, fast!) This is especially true if you have a Mac laptop with limited hard drive space: It's nice to look at your iPhone's gorgeous Portrait mode photos, but not necessarily always practical to store all of them locally.

Thankfully, Apple offers an Optimize Storage option, which lets you store full-resolution photos and videos of only your most recently shot and accessed imagery; all older photos and videos are available to download via iCloud and are stored as low-resolution previews on your device to save space. You can switch between optimizing your Mac's photos storage or storing your full library locally: Here's how!

Note: If you plan on using Optimize Storage, we suggest having at least one device that stores your entire library locally (usually a Mac with a large local or external hard drive), so you have multiple backups of your photographs and video.

  1. Launch the Photos app on your Mac.
  2. Click Photos in the App menu in the upper left corner of your screen.
  3. Select Preferences from the drop-down menu.

    Source: iMore

  4. Click the iCloud tab.
  5. Click Optimize Mac Storage.

    Source: iMore

Full-resolution versions of your photos and videos will be uploaded to iCloud.

How to share photos with iCloud Photo Library

Apple's photo service doesn't just provide online backups and sync for your images and video: The company also offers a free sharing service that allows you to send shared albums to friends and family (or create a publicly-shared website). Here's how to turn it on for your Mac.

Questions?

Let us know in the comments below.

Updated January 2020: Updated for macOS Catalina. Serenity Caldwell worked on a previous version of this post

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