Examples of settings that can be set and are referenced in a case of automatically generating a table of contents page include a table of contents document size, document direction, ineffectiveness of settings for the overall document, selection of initial symbols, page numbers to be employed, presence/absence of lead lines, and selection of chapters to be displayed in the table of contents. Such setting values are referenced in a case of creating a table of contents page, and the table of contents page is generated in according with the setting values.