Scribus is the Mac Daddy of PDF creation in Linux. Unlike the CUPS system or OpenOffice export, Scribus is a true desktop publishing application. You can compare Scribus to Adobe Pagemaker or QuarkXPress.
Scribus handles layers, transparency, CMYK colors, separations, ICC color management, and offers press-ready output.
You can install Scribus from your Add/Remove Software utility, do a search for Scribus, select the application for install, and apply the changes. Once Scribus is installed you will find it either in the Office or the Graphics menu.
Scribus can save in its own native formate, PDF 1.3, 1.4, or 1.5 format, or PostScript format. Scribus can also import PDF documents, as well as many other formats, for editing.