impress font mapping
Only if you own a copy of PowerPoint and install it. As an alternative, you should know there are literally hundreds of quality open fonts in the public domain available now;
Google Web Fonts (can be easily used in documents)
Check here for a review of other legitimate Open Source/Public Domain Font Sites
http://www.netmagazine.com/features/top-10-open-source-web-fonts
In particular, take a look at the Liberation fonts (metric-compatible with many Microsoft fonts), as described here.