You can print Oasis montaj map files through Acrobat distiller (Adobe) and then save to a *.PDF in Acrobat?
To do this, you need to have the full version of Acrobat, not just the reader. In the printer setup in Oasis montaj, set the printer to “Acrobat Distiller” and set the Print Mode to Windows. Make sure the ‘print to file’ is not checked – the distiller will take care of that. You can then covert to PDF.