i know i'm repeating myself, but i converted last week (with calibre 0.6.43) to convert several PDF-Files with pagenumbers in all the different ways there are. For most of them, the following Regex worked:
(i know it won't be highlighted in the wizard, but when you convert it, you will notice that it works anyway)
this regex will remove every pagenumber that stands by itself in a row.
if there is something like "Page 3" (having the html-Syntax of "<p>Page 3 </p>", you have to adjust your regex, too:
Code:
(<p>Page\s*\d+\s*<p>)
If it's becoming more difficult, you can use the wizard to verify your results, but in general you have to replace the closing tag with a "normal" to get it to work with in the conversion.