EDIT: ABCPDF no longer offers a free option unless you can satisfy their requirements of either being a Worthy Cause or a Worthy Individual. More details here: http://www.websupergoo.com/free-license.htm
ABCPDF will handle multiple pages, as stated in this link - "You can even have HTML flowed between multiple columns over multiple PDF pages."
I've used it extensively and found it to be pretty good.
Either that or iTextSharp if you're after open source options.
If you've got some money to spend, then have a look at Aspose.PDF.