http://support.adobe.com/devsup/devsup.nsf/docs/51412.htm
The DDE command line parameters for Acrobat and Reader are as follows. These are unsupported but have worked for some developers.
AcroRd32.exe /p filename – executes the Reader and prints a file
AcroRd32.exe /t path printername drivername portname – Initiates
Acrobat Reader, prints a file while suppressing the Acrobat print dialog box, then terminates Reader.
The four parameters of the /t option evaluate to path,printername, drivername, and portname (all strings).
printername – The name of your printer.
drivername – Your printer driver’s name. Whatever appears in the Driver Used box when you view your printer’s properties.
portname – The printer’s port. portname cannot contain any „/“ characters; if it does, output is routed to the default port for that printer.
Note: If using Acrobat, substitute Acrobat.exe in place of AcroRd32.exe in the command lines.
