http://printwiki.org/CenterlineRecent Changes of the page "Centerline" on PrintWiki.en-us http://printwiki.org/Centerline2007-09-06 12:00:00Encyclopedia of Graphic Communications Import <div id="content" class="wikipage content"> Differences for Centerline<p><strong></strong></p><table> <tr> <td> <span> Deletions are marked with - . </span> </td> <td> <span> Additions are marked with +. </span> </td> </tr> <tr> <td> Line 1: </td> <td> Line 1: </td> </tr> <tr> <td> </td> <td> <span>+ In prepress, a short, thin line added to original copy, a ["negative"], or a ["flat"] to indicate the center of the trim margin of a page. A centerline is also used for ["registration"] purposes. Also known as a ["center mark"].</span> </td> </tr> </table> </div>