An apparatus for managing an encapsulated document is disclosed that includes a file management unit to manage one or more content files; a program management unit to manage one or more programs for causing the content files to be manipulated; a document creation unit to create the encapsulated document by storing a content file selected from the content files managed by the file management unit and a program selected from the programs managed by the program management unit in a single file; an extraction unit to extract information on a manipulation by a user of the content file stored in the encapsulated document, the information being recorded in the encapsulated document by the program stored in the encapsulated document in accordance with the manipulation; and a manipulation information management unit to manage the extracted information on the manipulation.