To Uninstall Click2PDF, go to your Control Panel and choose Add/Remove Programs. Then choose Click2PDF, and hit the Change/Remove button.
Will not remove PDF files you may have placed in the program directory.
To remove the Click2PDF printer and the ~backup directory and the instant update file (IU.INI) and the CLK2PDF.INI from the Windows directory and the CLK2PDF.INI in the program directory.
AddPrinter.exe UNINSTALL
To just remove the printer, run this from a command line:
AddPrinter.exe DELPRINTER