Ruler/text/swriter/01/03050000.xhpSun Microsystems, Inc.converted from old format - fpeRulerShows or hides the horizontal ruler, that you can use to adjust page margins, tab stops, indents, borders, table cells, and to arrange objects on the page. To show the vertical ruler, choose Tools - Options - %PRODUCTNAME Writer - View, and then select the Vertical ruler check box in the Ruler area.