An electronic document management program, an electronic document management method and an electronic document management apparatus acquire a plurality of pieces of part identification information respectively identifiably expressing a plurality of parts of document information and a digital signature corresponding to the document information, acquire the preparation type, the preparer's name and the time and date of preparation of the document information as tracing information of the document information, manage the part identification information, the digital signature and the tracing information in association with each other and present information relating to the tracing information to the user in response to a request from the user. Additionally, they acquire new document information and tracing information according to a directive from the user.