To limit access to a document according to a plurality of types of access authorities set to the document when a server apparatus for limiting access to the document having a setting of a plurality of types of access authorities to operate the document cannot limit access to the document according to the access authority, an apparatus includes a conversion unit configured to convert a document into a plurality of documents having a setting corresponding to each of the plurality of types of access authorities, and a generation unit configured to merge the plurality of documents formed through conversion by the conversion unit, so as to be handled as one document, to generate one merged document.