Provides an easy and flexible user interface to customize page layout, implementing auto-centering and auto-balancing mechanisms so that the users have only to give the least description for the page layout. For example, if you want to set each margin 2cm without header space, what you need is just \usepackage[margin=2cm,nohead]{geometry}. Options include columnsep and footnotesep, vtex, mag. The author is Hideo Umeki. See also vmargin typearea a4 a4wide.