Adobe Photoshop is a graphics editing program which is the industry standard for graphics editing professionals. Photoshop CS3 (Creative Suite 3) is the 10th iteration of the program. Photoshop 1.0 was initially released for Macintosh in 1990. A version for Microsoft Wndows was released in 1992.

However, the full version of Adobe Photoshop is prohibitively expensive to most consumers. The full Adobe Creative Suite 3 Design Premium currently costs $1,799.00. In response, Adobe released "Photoshop Elements" which omitted many professional features but still retained much of the functionality used by general consumers.

Using Photoshop is not that easy to learn, since it's such a complicated program. I would visit http://graphic-design.com/Photoshop/ for some good introductory tips.