Posted by dellus on Dec 01, 2020; 10:25pm
URL: https://forum.librecad.org/Export-print-to-PDF-tp5719778p5719804.html

I have always wondered what "default" line width means in LibreCAD. It's not documented anywhere. In an other CAD I found it was possible to define it in the app to your liking, but didn't find this in LC. It seems to be 0.00 mm fixed. I guess it's a component of the dxf definition and so can't be ignored completely.

There is not one linewidth for certain elements right for every scale, same for the level of detailing, text size, space between parallel dimension lines etc. For a good look and readability every scale needs a different layout...

In the old times when drawing with ink pens on paper the thinnest line usable was 0.13 mm.
With 0.00 mm or the 0.05 you used it all looks fine on screen and you can zoom in to see all the fine detail in high resolution, but when printed on paper the lines get bloated.
For dimensions text height you have chosen 1 mm, you might need a magnifying glass to read that on paper.

Think of how you want the lines in that scale on a paper plan, that's the right linewidth.