Originally Posted by WillAdams
PDF is not a source format, it's a destination.
If you want better quality conversions of these files to anything other than .eps or other graphic formats for direct re-use as is, get the original source.
I totally agree with this but I still find it strange that some free apps and much cheaper apps such as NitroPDF do a better job of conversion than Adobe can. None of the free/cheap options are perfect (far from it) but they are a lot closer to Adobe's affort. You'd think if anyone could reverse engineer a PDF it would be the creators of the format. Considering Acrobat X Pro has so many options to export to so many formats they obviously believe it is possible. Yet the output from any of the options is rather poor. That would be acceptable if it wasn't for the fact the cheaper options do a better job.