I'm trying to save a page that I've created to a format (pdf, jpg, etc.) that I can email to my clients. When I try to, I keep getting the message "Could not start print job". I'm using Rhino 5.
You might want to look at using Rhino Render. Set Document Properties/Rhino Render/Miscellaneous so dimensions text and curves will render if you want, then save the output as png or jpg.