I got a problem when printing a word document (Office 2003, Windows XP SP3), where the main page orientation is portrait, but with some pages in Landscape orientation. The created pdf file has always all pages in portrait format, by distorting and sqeezing the landscape pages into portrait format.
I verified the printing with CutePDF (which i don't like becaus of reqiring Ghostscript) and NitroPDF (which is not free, so no option for poor student), and both are producing outputs with the correct page orientation changes (using the same document, on the same computer).
This happens with version 6.30 build 310 and build 311 (for older versions i don't know, won't go back)
Other then that i really like DoPDF, is is my prefered PDF writer. I honestly appreciate your efforts with this product.