Appointments Publications Codes Office Locations Help for Site Users Explanation of File Formats Feedback Site Map Continuing Education R HTML , Hypertext Markup Language, is the native file format of the World Wide Web.
Web browsers read HTML pages directly, without any additional software.
HTML pages may have different appearances on different computer systems. HTML documents you see on your system. R PDF , Portable Document Format is a cross-platform format that is transportable and viewable on any type of computer system. PDF files need a viewer such as Acrobat Exchange or Acrobat Reader. The current versions may be downloaded or printed at the viewer's discretion.