Thanks for that. I already have such a program. I can print to PDF. I just don't get options to choose paper size. Is that a lack in SweetHome3D or in the OS side (PDF printer etc.)?

Great program - thanks!!

When I choose "Print to PDF" it uses all the same settings as the default printer with no opportunity to change them.

Even though I don't have an A3 printer I want to be able to create an A3 PDF file so that my wife can print it at her work on their A3 printer.

I found ...