Inside the iPhoto Library

The iPhoto Library item is a package—a special kind of Mac OS X folder. If you double-click the iPhoto Library item, your Mac simply starts or switches to iPhoto.

But there is a way to get inside if you must. Control-click the iPhoto Library item and choose Show Package Contents from the shortcut menu. Inside, you’ll find a bevy of folders and files that constitute your library.

Warning: Leave them be. Always use iPhoto to add photos to or remove photos from your library: drag photos into and out of the iPhoto window.

Digital cameras store information along with each photo—the date and time when the photo was taken, its exposure, the kind of camera used, and more. This ...

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