KGhostView doesn't print pdf files

[Raul Moratalla]

Hi! I'm trying to print a pdf file with KghostView but it isn't possible. It 
gives the next message:
"The file format application/x-zerosize is not
directly supported by the current system."
KGhostView asks:
 "KDE convert this file to application/postscript ?"
I agree but it fails and says:
  "no appropriate filter"
Anyone knows how to print pdf files with Kgostview?
Thanks