This template uses the sslides class, a variant of the standard LaTeX slides class that lets you add a header and footer to each slide. The three-page portrait sample has a title slide with an abstract, a dated heading and slides that explain the class, in the clean font of the original slides class. It loads only the graphics package.
Shared under the LaTeX Project Public License 1.3. All credit to behzad Salimi; the licence comes with the project's files.