From File

Enable this option to remove selected menus from the menu list. The selected menu will be removed once all sub-menus have been removed.

Supported on: Microsoft Windows XP SP2 or later
Registry HiveHKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry PathSoftware\Policies\Foxit\PhantomPDF 8.0\Custom Menus\File
Value NameFromFile
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

foxit phantompdf 8.0.admx

Administrative Templates (Computers)

Administrative Templates (Users)