PDFmyURL will make a PDF file when you type in a web address. If you just want a PDF of a URL, PDFmyURL.com is a breeze.
From the site:
Simply link the text or image you want people to use for downloading a specific page/url like this:
http://pdfmyurl.com?url=www.opentracker.net
http://pdfmyurl.com/
