An option I useds a while back that worked nicely (although is not free) was to use an ActiveX/.Net component (it comes with both interfaces) called Many2PDF - basically it will, without the need for setting up printers on machines, etc will convert a variety of file formats to a pdf document with no user interaction. We then used the standard LabVIEW HTML reporting tools to create a report (which could be printed if necessary) and every time a report was created, seemlessly save a pdf version (complete with images, tables etc) to disk. If anyone is interested I would be happy to put up my (very basic) VI that that generates uses this tool.
I'm not sure how this would compare to the Carya offereing as I had not come across that one until today!
Shaun
