PDFKeeper can be uninstalled from the computer by using Programs and Features or Apps and Features in Windows. The uninstall can be performed as a standard Windows user, without elevated privileges.
The following are NOT removed by the uninstall process:
%LOCALAPPDATA%\Robert_F._Frasca\PDFKeeper.exe_StrongName_3a4kmi4qmybqtr3ccktl5hjos3hxcjc5
%APPDATA%\Robert F. Frasca\PDFKeeper
HKEY_CURRENT_USER\Software\Robert F. Frasca\PDFKeeper\AutoUpdater
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Robert F. Frasca\PDFKeeper
Database installation and client software.