Posted by Eugen F. on Jun 18, 2013; 11:30am
URL: https://forum.librecad.org/How-can-I-calibrate-a-printer-in-LibreCAD-tp5708361p5708386.html

I think that its need function in Print dialog:

"Horizontal scale: *.**"

"Vertical scale: *.**"

where *.** is calibration!
Thats all!