I disagree that my statement was off topic. The author in summary states that PDF is "unfit for digital-content display". I gave a specific counter example of a

I disagree that my statement was off topic. The author in summary states that PDF is "unfit for digital-content display". I gave a specific counter example of a type of regularly reviewed digital content that is beneficial to archive (in this case financial documents that may be necessary for tax purposes). While this is just one use case of PDF framed in a browser, it still stands as one. I have also in my years regularly needed to archive the contents of a page - such as a receipt of a payment or a report on something. In that case, printing the PDF seems to be one of the better practices. Saving as a Web archive (or whatever the format is called) is an alternative, but that is slightly harder to then print/fax or otherwise send to someone at a future date.