Please create the margins in the titleblock family. One can use invisible lines at a certain distance from the visible lines for instance. Revit and Docuflow uses the size reported by the titleblock mainly to create the PDF paper size.

This is what I am looking to achieve: https://i.imgur.com/XD7a5Gr.png

This is what i am getting instead: 

Hi There,

All my sheets that are printed to PDF have no margins.

I've tried changing multiple settings, but nothing is helping.

Is there a setting somewhere that is removing margins from my drawings?