Tom,I have tried to print th PDF with the PrintSOE enabled on the map service and without.With the PrintSOE enabled, here is the source a have.Data Type: ArcGIS Map Service
Connection:   Internet
Server:   http://swarcgis001/ArcGIS/services
Name:   Cad_test
Operations Allowed:  Map (Display), Query (Identify), Data (Find)
Map Service Type:  Cached
File Format:  PNG32
Restriction:  Sublayers can't be turned on or off
When i disabled the PrintSOE here is the source :Data Type: ArcGIS Map Service
Connection:   Internet
Server:   http://swarcgis001/ArcGIS/services
Name:   Cad_test
Operations Allowed:  Map (Display), Query (Identify), Data (Find)
Map Service Type:  Cached
File Format:  PNG32
Restriction:  Sublayers can't be turned on or off
and i had during the print processus a error