How to do a silent uninstall of Power PDF?

Issue:

How to do a silent uninstall of Power PDF?

Resolution

A silent uninstallation is done by running Msiexec /x ProductCode /qn whereas ProductCore is a GUID and can be found under either in registry when PPDF is installed (under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\) or in Setup.ini in the installation media (in proper system32 or system64 subfolder)

e.g. msiexec /x {D79DEBB2-8A76-4EE1-8F42-FD1F856ADB3B} /qn for the Released 12-lang 64-bit Power PDF 3.0 installation