Scribus

Scribus provides a professional page layout to users of almost all operating systems out there. User friendly in terms of its interface, this office suite was designed for publishing operations, having some features in this respect, such as color separations, ICC, PDF creator, CMYK and spot colors.

If a beginner in such terminology, try asking the software’s dedicated community on IRC, mail or wiki. Anyway, the publication created with this tool will certainly look professional, no matter the topic, the language or the file format you need.

And there is no reason to worry about prices, as it is and it will always remain free.