Posted by richard_collier on
URL: https://forum.librecad.org/invisible-print-on-pdf-exports-tp5718797p5718801.html

That was it!  Seems the older ubuntu pdf viewer/printer ignored line width.  The new one is maliciously compliant.  My default line widths were set to thin.  I have changed it to .05mm line width as a default and now my viewer, printer and plotter (and clients) are happy.

Thank you very much!