To clear this error please do the following:

  • Close Publisher.
  • Open "Printers" from the icon on your desktop.
  • Right Click on "Microsoft Print to PDF".
  • Select "Set as Default Printer".
  • Right Click on the printer that is usually your default printer.
  • Select "Set as Default Printer".
  • Start Publisher.
  • Load you file and try to save as PDF again.