Print magnified drawing

My drawing occupies about 70 % of the US letter size space (Landscape) and when I print out the image
looks small (but all actual dimensions expressed in numbers (distance btw two points etc) are correct). It is hard for
the machinist to see busy areas (many lines overlap).

Is there any way to magnify/resize the image when printed on a paper (e.g. fit to the paper size) without affecting
the drawing's correct dimensions? I am on linux mint kde
and for some reason, printer's option does not include resizing (magnify/contract).

jmiyamoto:  The problem is that if you magnify the drawing, then it is no longer to scale.

The work around is to make a copy of the drawing, and put your title block around it at a different scale.  re-dimension the area that you're zoomed in to view, and print that.

Sorry, there's no easy way to do it in LibreCad, like a window that you can just zoom in and out inside the title block.