I have been trying to send a .pdf fax (643 kb) and each time it fails with the error message 'null output converting pdf.' I have no idea what that means or if there is something I am supposed to do. HELP!!
Have same problem "null output converting .pdf" (size: 27kb) (test to tech support was 18kb)
Tried half dozen times. Sent one as test to myself that worked but test I sent to tech support failed.