<https://forum.affinity.serif.com/index.php?/topic/91168-rulers-in-publisher/#comment-482796>
<http://schema.org/text>
"For all apps you need to have a document open and then View &gt; Show Rulers is available, it is a toggle on/off.\n \n\n\n\tTo change the units which is what you may actually want use the cursor to go to the upper left corner and control click on the intersection.\n \n\n\n\t "
<https://forum.affinity.serif.com/index.php?/topic/91168-rulers-in-publisher/>