Good reasons to save a page as PDF
Converting a web page to PDF freezes it in time, which is exactly what you want for keeping a record: an order confirmation, a receipt, a published article, or the state of a document at a certain date. A PDF is easy to file, email and print, and unlike a bookmark it does not break when the page changes or disappears. It is also the practical way to hand a web-based report to someone who needs a fixed, paginated copy rather than a link, and to attach online content to a case file or an invoice.