The present invention teaches a digital media file conversion and integration system including a server coupled to the Internet to allow users to download media files to a server the Internet. The system contains devices to screen, compress, and update the media files, devices to break down the media files into low level components, devices to convert one or media files to an intermediate format and then combine the intermediate formats to create an output format, devices to convert output formats to a presentation file, electronic storage to allow third party access to the presentation file through the Internet or email. Presentation files can be created for electronic devices such as portable digital assistants or cellular phones. Users can choose from several output formats. Users can subscribe to the presentation service or pay per use. In an alternate embodiment, users can author digital media files on a personal computer and download the authored file to the presentation conversion system.