Adobe Photoshop CS4 Long established as a must-have guide for Photoshop users upgrading to the newest version, Up to Speed goes right to the heart of Photoshop CS4 what has changed, what is new, and how you can get the most out of the features as quickly as possible. Rather than sift through hundreds of pages detailing every last Photoshop feature and function (both old and new), you can go directly to the new featur...