How to Upload iPhoto Into Photoshop CS3
- 1). Select "Preferences" from the iPhoto menu.
- 2). Click on the "General" tab in the Preferences window. Locate the "Edit Photo" drop down menu.
- 3). Select "Adobe Photoshop CS3" from the "Edit Photo" drop-down menu. Click "OK" to apply your settings and close the Preferences window.
- 4). Double-click on a photograph you want to edit. iPhoto will open the photograph with Adobe Photoshop.
- 5). Edit the photograph in Photoshop. When you are finished, save your work and close Photoshop. iPhoto will automatically update the modified picture in your photo gallery.
Source...