My architectural printer has roll paper over various width. If I want want to create a PDF, presumably, I need to create a custom page size of the desired roll width and a length large enough for the document to be printed.
However, in rhino the custom page size option is always grayed out.
In other applications, such a Word, I can create a custom page size in the Page Setup dialog and select in the Print dialog.
Then I can create a PDF of an size.
How does one do this in Rhino?