Patent ID: 7765474
Filing Date: 2010-07-27
Classification: G06F

Abstract:
1. An electronic-document management system comprising: an acquisition unit that acquires a target electronic document; an edit unit that edits the acquired target electronic document; a first storage unit that stores the target electronic document edited by the edit unit and a first hash value of the edited target electronic document in association with each other; a generation unit that generates the first hash value corresponding to the edited target electronic document, generates meta-information of the edited target electronic document, which comprises reference information of the target electronic document and the first hash value, and generates a second hash value corresponding to the generated meta-information of the edited target electronic document; a second storage unit that stores the meta-information of the edited target electronic document and the second hash value in association with each other; and an output unit that outputs the second hash value as reference information of the edited target electronic document.