Screen Print to Pdf or Graphic File

Hello

I'm using a Windows VE 5.0 based system for supervision of an automated installation.
The sofware uses a 'Print Screen' function to print the screen to a USB-linked printer.
I would like to to the same but print to a pdf or a graphic file, as do any common print capture utility in Windows XP.

Any link to a good software (preferably freeware) will be appreciated ..

Tanks for your help