iPhoto '11: Remove photos from a card
If you don’t want to use a photo in a card, you can remove it from the card page. You can also remove a photo from a card project.
To remove a photo from a card page:
Select the photo that you want to remove.Important: Be sure to select the photo, not the page.
Press the Control key while you click the photo, and then choose “Remove Photo” from the shortcut menu.
The photo is removed from the photo frame, but remains associated with the card.
To remove a photo from a card project:
Click the Photos button in the toolbar, select the photo’s thumbnail in the Photo pane, and then press Delete.
If the photo was used in the card project, it is removed from the card’s pages, and the photo is no longer associated with the card project.