Open Office Impress is a free and open-source presentation software that is very similar to Microsoft PowerPoint. It can be easily downloaded from openoffice.org by clicking on the green "Download Apache OpenOffice" box. Using Impress is straightforward for those familiar with PowerPoint, and it allows users to create presentations that can be viewed anywhere since it can export files to PDF and Flash formats. While it has some minor differences from PowerPoint, Impress provides a free alternative for creating presentations without the cost of a PowerPoint license.