Mac Os Compress Photos Library

Your Photos library holds all your photos, albums, slideshows, and print projects. If your library is large, and you want to free up storage space on your Mac, turn on iCloud Photo Library and use Optimize Mac Storage, or move your library to an external drive.

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Before you start, be sure to back up your library.

Prepare your drive

You can store your library on an external storage device, such as a USB or Thunderbolt drive formatted as APFS or Mac OS Extended (Journaled).¹ Find out how to check the format of your external storage device.

To prevent data loss, Apple doesn't recommend storing photo libraries on external storage devices like SD cards and USB flash drives, or drives that are shared on a network.

Move your Photos library to an external storage device

Quit Photos.
In the Finder, go to the external drive where you want to store your library.
In another Finder window, find your library. The default location is Users > [username] > Pictures, and it's named Photos Library.
Drag your library to its new location on the external drive. If you see an error, select your external drive's icon in the Finder, then choose File > Get Info. If the information under Sharing & Permissions isn't visible, click , then make sure the 'Ignore ownership on this volume' checkbox is selected. If it's not selected, click to unlock it, enter an administrator name and password, then select the checkbox.²
After the move is finished, double-click Photos Library in its new location to open it.
If you use iCloud Photo Library, designate this library as the System Photo Library.

Delete original library to save space

Nov 09, 2018 Free up your space by transferring your Photos library to another external hard drive. By freeing up space you will have valuable space for your work on your Mac. In addition to this, we will help you to back up your whole photo library to iCloud. Why store photos on external drive In today’s world,.

After you open your library from its new location and make sure that it works as expected, you can delete the library from its original location.

In a Finder window, go back to your Pictures folder (or whichever folder you copied your library from) and move Photos Library to the trash. Then choose Finder > Empty Trash to delete the library and reclaim disk space.

Open another Photos library

If you have multiple libraries, here's how to open a different one:

Quit Photos.
Press and hold the Option key while you open Photos.
Select the library that you want to open, then click Choose Library.

Photos uses this library until you open a different one.

Learn more

If you have a permissions issue with your library, you might be able to resolve the issue by using the Photos library repair tool.

1. You can't move your library to a disk that's used for Time Machine backups.

2. If the volume isn't formatted APFS or Mac OS Extended (Journaled), or has been used for Time Machine backups but hasn't been erased, this checkbox will either not be present, or won't be selectable after unlocking. Erase and reformat the drive for this option to be available.

Photos for Mac lets you share photos and videos with pretty much any social network and app you can find. Whether you're looking to post something on Facebook, share directly to Macs, iPhones, or iPads with AirDrop, or add to a shared Photo Stream, Photos makes it easy to share with just a couple of clicks.

Here's what you need to know about sharing pictures and video in Photos for Mac.

How to share a single image or video with Photos for Mac

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Launch the Photos app on your Mac.
Find the image or video you want to share and open it.
Click on the Share button in the upper right hand corner.
Choose the method you'd like to use to share it.
Fill out any necessary info and send it on its way!

How to share multiple images and videos at once with Photos for Mac

Launch the Photos app on your Mac.
Select the images and videos you'd like to share. Select multiples by holding down the command key.
Click on the Share button in the top menu bar, it's off to the right.
Choose the method you'd like to use to share it.
Fill out any necessary info and send it on its way!

How to use iCloud Photo Sharing and create a shared photo album with Photos for Mac

Apple's iCloud service includes iCloud Photo Sharing, which lets you share images and video with friends, family, and colleagues on an iPhone, iPad, Mac, PC, or Apple TV. While technically considered part of iCloud Photo Library, iCloud Photo Sharing exists outside of the service: You don't have to use iCloud Photo Library to share your images, and shared albums don't count toward your iCloud storage.

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Best of all, creating shared albums is simpler than uploading images to Facebook or Instagram, and safer, too: Your images and video stay private between your group, and you can take the album down at any time. If you want to reach a wider range of people, you can even create a public iCloud.com website to host your images for anyone with the link to view them.

Questions?

Let us know in the comments if you have any more questions about sharing pictures and videos using Photos for Mac.