Put location URL in web-based PDFs?

So a long time ago (maybe back in the Tiger days), when using the "Print to PDF" functionality while using a browser, the system would automatically insert the URL of the page at the top of the generated PDF. I don't know if this was something OS X was doing, or a particular browser plugin, but I was wondering if anyone knows how to make this happen in Mavericks. I'm using Chrome (64-bit), 41.0.2272.76.