12. Authors' Addresses

   Lloyd McIntyre                     Stephen Zilles
   Xerox Corporation                  Adobe Systems Inc.
   Mailstop PAHV-305                  Mailstop W14
   3400 Hillview Ave.                 345 Park Avenue
   Palo Alto, CA 94304 USA            San Jose, CA 95110-2704, USA
   Voice: +1-650-813-6762             Voice: +1-408-536-4766
   Fax: +1-650-845-2340               Fax: +1-408-536-4042
   Email: lmcintyre@adoc.xerox.com    Email: szilles@adobe.com

   Robert Buckley                     Dennis Venable
   Xerox Corporation                  Xerox Corporation
   Mailstop 0128-30E                  Mailstop 0128-27E
   800 Phillips Road                  800 Phillips Road
   Webster, NY 14580, USA             Webster, NY 14580, USA
   Voice: +1-716-422-1282             Voice: +1-716-422-8009
   Fax: +1-716-422-6117               Fax: +1-716-422-6117
   Email: Rob_Buckley@wb.xerox.com    Email: venable@wrc.xerox.com

   Glenn S. Parsons                   James Rafferty
   Northern Telecom                   Human Communications
   P.O. Box 3511, Station C           12 Kevin Drive
   Ottawa, ON  K1Y 4H7, Canada        Danbury, CT 06811-2901, USA
   Phone: +1-613-763-7582             Phone: +1-203-746-4367
   Fax: +1-613-763-2697               Fax: +1-203-746-4367
   Email: Glenn.Parsons@Nortel.ca     Email: Jrafferty@worldnet.att.net