Tools / Libraries for printing PDF files?

[alitoh]

Does anybody have any experience with PDF?

I have a pdf file which I want to print (to an HP USB Printer) programatically, and in a way that's transparent to the user: as in 'The user just presses "Print report" and the PDF file is printed automatically (it is NEVER displayed on screen, I recieve this file via network and I just want to send it straight to printer).

Does anyone have any idea on how to achieve this?
Ideally I'm looking a dll or something to use in a manner such as

CrazyPDFLib PdfObject;
PdfObject->sendToPrinter(wackyParameters);

CrazyPDFLib PdfObject;
PdfObject->sendToPrinter(wackyParameters);

To copy to clipboard, switch view to plain text mode 

Otherwise, some sort of information about libraries that might do something like that is also welcome.

Also, if you know command prompt applications that do something similar, I might also be able to use.

Platform details:
*Windows 7
*Qt 4.8.2
*Visual Studio 2010
*Printer, if it is of any use, is HP Officejet Pro 8100 (via USB port). Printer drivers are installed.


If I'm not quite clear (which is a possibility), please do let me know and I will try to elaborate on whatever's left unclear.

Regards,
Alejandro