Prosper is a very nice package for creating presentations using LaTeX. Unfortunately, it was developed in Europe where the standard paper size is A4 and not US Letter. I have hacked up a version of the prosper class and my favorite style to fit on letter paper instead. Other Prosper templates should also be supported by prosper-us with a little bit of tweaking of the element offsets. Comparing the original blueline style to mine should be a good starting point. See the original Prosper documentation on how to install and use the styles.
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