Scribus | Desktop Publishing

Easy-to-use, powerful desktop publishing that allows people to produce professional-quality brochures, magazine layouts, newspapers, advertisements etc. easily from just about any computer.

"Scribus is an Open Source program that brings professional page layout and desktop publishing to Linux, Mac OS X, and Windows with a combination of press-ready output and new approaches to page design.

Underneath a modern and user-friendly interface, Scribus supports professional publishing features, such as color separations, CMYK and spot colors, ICC color management, and versatile PDF creation." (Link)