The web page may have invalid HTML code. I always test sites like that at http://www.w3c.org A tester is free there without anything to load on your PC.
I keep getting foreign characters in Adobe Acrobat 7 Pro (7.0.1 updated) when using Convert webpage to PDF file (on IE 6 SP2).
I have uninstalled and reinstalled numerous times and I still get added characters at the top and bottom of webpages. On others, for example running the Belarc Advisor Report, ALL characters are Greek and foreign characters when I hit "Convert Webpage to PDF File."
When I choose File, Print, and choose Adobe PDF as the printer, most characters are normal except for the characters thrown up in the header and footer area.
Anyone else having this problem?