ePublisher creates and stores the files.info file for each target with the project files. Each stage completes a small portion of the transformation. A completed stage creates new information that contributes to the appearance or functionality of the transformed content. When a stage finishes, ePublisher writes the location of the processed information in the files.info file for use by other stages. Each stage can use information in the files.info file and record information in the files.info file for use by another stage.