Posted by dellus on May 12, 2020; 10:05pm
URL: https://forum.librecad.org/Set-Engineering-Scale-of-1-inch-50-feet-tp5718851p5718855.html

1 inch = 50 feet makes 1:600. Just type this into the scale box in Print Preview and confirm with Enter.
Or is your question how to properly import a .png image from a pdf or a scan of a real paper plan?