<https://forum.affinity.serif.com/index.php?/topic/91168-rulers-in-publisher/#comment-712565>
<http://schema.org/text>
"Double click on the object and you get a box near the top of the screen that displays the dimensions of the object. Click on the very small box with the arrow inside it next to the word 'size'. This opens a 'Format AutoShape' box. Click on 'Layout' and you can enter the horizontal and vertical measurements and click 'okay' to place your object exactly where you want it.\n "
<https://forum.affinity.serif.com/index.php?/topic/91168-rulers-in-publisher/>