To subscribe to a shared photo stream, all you have to do is accept the invitation. Invitations to a shared photo stream are sent by email and notifications.

1. In the Shared section of the Library inspector, select iCloud.

2. Move the pointer over the shared photo stream’s thumbnail, and click the Accept button.

   If you don’t want to subscribe to the shared photo stream, click the Decline button.

   

Shared photo streams that you subscribe to appear in the lower portion of iCloud view. A blue dot next to the shared photo stream’s name indicates that new photos or video clips have been added to the photo stream or new comments have been added to one of its photos. In addition, a number appears above the Aperture icon in the Dock to indicate that new photos and comments have been shared with you.

If you want to unsubscribe from a photo stream, all you have to do is delete it.

1. In the Shared section of the Library inspector, select iCloud.

2. Select the photo stream you want to unsubscribe from, and press Command-Delete.

1. Select the items you want to add to a shared photo stream, and do one of the following:

   • Choose File > Share > iCloud.

   • Choose iCloud from the Share pop-up menu in the toolbar.

2. In the iCloud dialog, choose a shared photo stream from the Stream pop-up menu, and click OK.

1. In the Shared section of the Library inspector, select iCloud.

2. Double-click the shared photo stream containing the photo or video you want to like or comment on.

3. Select the item.

4. In the Info inspector, choose Comments from the Metadata View pop-up menu, and do either or both of the following:

   • To like the photo: Click the Like button (with a smiley face).

     

   • To add a comment to the photo: Type the comment in the text field, and click Post.

     

When you like or comment on an item in a shared stream, that information is sent to all the Apple devices of the photo stream’s creator and subscribers. You can delete comments you added to an item by placing the pointer over the comment and clicking the Delete button that appears.

Photos and video clips in shared photo streams are view-only. However, you can import shared items into your Aperture library, apply image adjustments, share the updated items, and add them to your slideshows and books.

1. In the Shared section of the Library inspector, select iCloud.

2. Double-click the shared stream containing the items you want to save.

3. Select the photos or video clips.

4. Import the items by doing one of the following:

   • Drag the photos into a project in the Library inspector.

   • In the histogram area of the Adjustments inspector, click the Import Photo button.