If you want to open a photo in Photoshop on a Mac, there are a few different ways to do it. The easiest way is to use the File menu and select Open. You can also use the keyboard shortcut Command-O (or Ctrl-O on a PC). If you want to open a photo in Photoshop from within an application like iPhoto or Aperture, you can use the File menu and select Open In. You can also use the keyboard shortcut Command-O (or Ctrl-O on a PC). ..
