Therefore, it can't replace the document itself moreover, it is invalid without a national driver's license. Note that an International Driving Permit is just a translation of a document.
Among other things, an International Driving Permit contains information from a national driver's license translated into English, and thus it supplements and confirms national DLs. An International Driving Permit is a kind of your driver's license translated into ten languages to help travelers and local authorities overcome language barriers.