Keeping an internal report on the machine it already lives on
An upload is fine for a page you saved off a public site. It is a different decision for a payroll export, a discovery set or a dump of the internal wiki. And there is a practical catch that comes before the privacy one. A web form takes a file, while your saved page is a file plus a folder, so you end up zipping the two together by hand for every page in the pile. Without that folder the reader loses most of what the page looked like. Free web tiers then cap you at 20 pages per document, or three jobs an hour. Batch HTML to PDF Converter works on your own PC, and a sniffer over a finished run did not catch a single outgoing request.