How make for OTHER appl virtual printers of konqueror/iceweasel as "default printer"

[knp]

Greetings

How to make, for OTHER applications (than these 2 web browsers), virtual printers of Iceweasel or Konqueror as "a default printer" IF POSSIBLE?
(For Knoppix 7.2 for example)


My interest for this is to always and directly printing to "pdf_files" within ANY application. Perhaps this depends highly on the program used?

Is that possible? If not, why?

Am I on the right forum? I saw here some posts about "printing"....If not i am sorry.

Thanks you for your help