I may have a solution for you, namely the epub plugin. Create an ebook with the epub plugin and then download Calibre: http://calibre-ebook.com/download
Save the ebook (epub) to your desktop and open in Calibre. In Calibre you can convert the epub to both a pdf and to zip. Unpacking the zip format will give you a folder containing the complete site plus an html file which associates with the folder and opens it. You can find both formats at http://www.mturner.org/devel/doku.php?id=devel:epub:pdf
This gives you only the pages, not the surrounding matter.
When converting to pdf from epub, choose default input and default output in the Page Setup panel.