A security document with a high level of security fabricated at low cost by using an image forming apparatus-based security document management system is provided. The management system may include a near field communication (NFC) tag reader/writer, a method of managing a security document, a method of creating a security document, a method of certifying a security document, an image forming apparatus, and an image forming apparatus-based security document management system. A method of managing a security document by using an image forming apparatus including an NFC tag reader/writer may include an embodiment reading an integrated NFC tag of security paper including the integrated NFC tag by using the NFC tag reader/writer; performing a security document creation process for the security paper when a first S/N is stored in the NFC tag; and performing a security document certification process for the security document when the first S/N, a key value, and a second S/N are stored in the NFC tag.