Scribus is a useful, free and reliable open source page layout program (DTP) with the aim of producing conformant commercial grade output in PDF and Postscript., along with extensive support for graphical PDF form and PDF presentations. While the goals of the program are ease of use and simple easy to understand tools, Scribus offers support for professional publishing features, such as CMYK colors, easy PDF creation and Encapsulated Postscript import/export. Other professional features include full ICC color management, spot colors and creation of color separations. Scribus is used around the world for newspaper production, book publishing and a wide variety of page layout tasks. First, Scribus was developed first and foremost on Linux and Unix machines, so sometimes the way things work are not always the 'windows way', but a more OS neutral way. Scribus also is natively ported to MacOSX and the behavior changes are mostly in the way the menus work. Second, a great deal of time and effort has been put into Scribus to generate very high quality commercial grade PDF. Provided you follow the recommended workflow in the documentation, you should have few issues with commercial printing.