I need to delete a lot of duplicates on iPhoto. I just bought my MacBook Pro and was so excited I downloaded my external hard drive without thinking through the process. I now realize I had my photos doubled up. So I actually have the same library twice.

Question

Hello All!
I am so excited about my new computer and I didn't know that my external hard drive had so many pictures duplicated on it. So I downloaded the entire hard drive. I thought iPhoto was going to be my answer, and now after reading a lot of discussions, it seems I have royally screwed up.  Please help me fix this problem. I am a computer novice. An even more Mac novice. I need very simple directions.  I would just start over with iPhoto, but I downloaded my digital camera with brand new photos on iPhoto and also downloaded my digital camera software on my new MacBookPro.  I am afraid if I "start over" with iPhoto I will lose my digital camera pictures. I bought the Mac to finally get my pictures straight, and look at the mess I have made.  I had AVG PC cleanup and used that program last night to delete duplicates from my PC. I also used it to delete duplicates from my external hard drive. I omega. I know, I know, too late huh? But I am teachable. And I now have my external hard drive fixed. But now, my question to the community is how to fix my new Mac, and my iPhoto. 
Thanks,

Answer 1

SweetThunder73 wrote:
When you say to remove the photos out of the iPhoto folder, then import the clean single copies, I am understanding that the "original" file that the decloner was run against is now the "clean" single copies?
Ok, you've got iPhoto Library that you have imported everything into, you can't delete the iPhoto Library and start over because you have only one copy of some pictures in there, combined with a lot of duplicates.
You want all the duplicates out, but it will take you ages to do it by hand.
What you do is.
1: Right click on the iPhoto Library and "Show Package Contents"
2: You will see a folder called Originals, these are all your original photo's, copy this folder to a external drive someplace, it's your backup.
3: Select the Originals folder again and from the Finder Menu > File > Duplicate.
4: Now you will have a OriginalsCopy folder, move that OriginalsCopy folder onto the desktop area out of the iPhoto Library folder. Close the iPhoto Library folder/window.
5: Download the Decloner software and install it, use it to find all the "real" duplicates, via it's content on the OriginalsCopy folder.
6: From the Finder menu > New Folder, now send the duplicate files to that folder, so all that is left in the OriginalsCopy folder is 1 copy of your pictures, minus all the duplicates which are now in New Folder.
7: Open iPhoto and remove all your pictures in there. The iPhoto Library will update to become empty.
8: Now import the pictures from the OriginalsCopy folder, these will now have only one copy of each picture.
9: Open your New Folder, from the Edit menu > Select All and
10 From the Finder > File Menu > Open With > Preview.
Now you have one copy in your iPhoto Library and the duplicates in a New Folder opened with Preview which you can compare to make sure.
Make as many backups of your pictures as you think you need during this prcess, but eventually you only want 1 picture of all you have in the iPhoto Library.
Some pictures may be the same thing but a little smaller etc., these obviously are not duplicates, and you can weed those out by hand in iPhoto.
Good Luck.