Adobe Photoshop CS4 Extended 818mb (unpack 1.6 giga)Adobe Photoshop CS4 software provides improved access to its unrivaled power through a more intuitive user experience, greater editing freedom, and significant productivity enhancements.Making several adjustments in Photoshop CS4 using the new Adjustments panel is more than 200% faster than using Adjustment Layers in previous versions to achieve the same results.AND WORKS IN VISTA