19 Free Alternatives to Photoshop | Aprendiendoaenseñar | Scoop.it
Adobe Photoshop is a powerful raster graphics editor which supports layers, masks and several color models. In addition to the built-in tools and functions, there are plugins available to expand its capabilities. Photoshop is known by most as the industry standard in image editing, and its name has even become a verb in the modern English language.

Via Gumersindo Fernández