Problems registering, no confirmation email - see http://wiki.scribus.net/canvas/Forums_Registration
QuoteWhen a book is printed, all pages are trimmed to the selected trim size by cutting 0.125" (3.2 mm) from the top, bottom, and outside edges. In order for objects on your page to reach all the way to the edge of the page, those objects must extend past where the page will be trimmed by 0.125" (3.2 mm). This means you need to increase your page size beyond where it will be trimmed.