A document creation method according to this invention includes an image capturing step of capturing image data of each page, a boundary image specifying step of specifying a boundary image serving as the boundary between sets of pages from image data captured in the image capturing step, and a document creation step of creating, on the basis of the image data captured in the image capturing step, an electronic document divided into different chapters at the position of the boundary image specified in the boundary image specifying step. The electronic document created in the document creation step is divided into a plurality of chapters, and boundary pages are set between the plurality of chapters.