In the case where services of generation and saving of a document file are provided on a cloud system, suppression of the number of document files to be generated and maintenance of display performance are caused to coexist. A server apparatus that provides a generation service of a document file, the apparatus including: a communication unit configured to receive source data, which is a source of a document file, from a client apparatus; a file generation unit configured to generate a document file based on a plurality of resources included in the source data; and a saving unit configured to save a generated document file in a storage, and the file generation unit determines which of an in-line method and an external reference method is applied to each of a plurality of resources included in the source data in accordance with a situation of access to the storage and generate the document file based on results of the determination.