This policy setting allows you to control the "Print document properties" setting found under File tab | Options | Display ...

This policy setting allows you to control the "Print document properties" setting found under File tab | Options | Display | Printing options.If you enable this policy setting, Word will print an additional page with the printed document's properties, including the document's author, filename, creation date, etc., for every document that is printed.If you disable or do not configure this policy setting, no additional page will be printed.