Which iphoto library am i using

User profile for user: MomE MomE. Quite a while back, I used IPLM to merge several iPhoto libraries two or three into one master one, now that I have the hard drive space. Now I'm wanting to back it up a separate instance besides my Time Machine, but I have at least two libraries in my Photos folder. I'm pretty sure which one I'm using because of its size. But is there a way to tell from within iPhoto which library it currently has open??

Or when I start with the Option held down, will it indicate which one was last used? I'm almost afraid to try Hold down the Option key and open Photos. Choose the library you want to designate as the System Photo Library. Click the General tab. Click the Use as System Photo Library button. Need help?

Published Date: July 16, After all, you can preview, open, edit, rotate, copy, export, and print all your photos right in iPhoto, without actually opening a folder or double-clicking a single JPEG file. Whenever you import pictures into iPhoto, the program makes copies of your photos, always leaving your original files untouched.

As a result, transferring photos from your hard drive into iPhoto more than doubles the amount of disk space they take up.

In addition, iPhoto creates a separate thumbnail version of each picture, consuming about another 10 K to 20 K per photo. Do I have to keep my photos in the iPhoto Library folder?

What if I want them stored somewhere else? No problemo! Just quit iPhoto. Then open iPhoto again. Now click the Find Library button to show the program where you put the folder. Done deal! After all, it contains all the photos you import into iPhoto, which, essentially, is your entire photography collection.

Chapter 14 offers much more on this file management topic.