It's possible that you have a corrupted adobe PDF reader and or NPrinting installation..
1. Uninstall your Adobe product
2. Uninstall NPrinting
4. Reinstall Adobe
5. Reinstall NPrinting*
*When reinstalling NPrinting, ensure that you are installing NPrinting and adobe as an Administrator on the local machine.
-log on as a local machine administrator
-right click on the installation file and select 'run as administrator' from the context menu.
-complete the installation
-reboot the computer again.
If you continue to experience Technical Support issues, please contact the Qlik Support desk at the link below: