A colleague has asked me for examples of PDF accessibility done right, and I'm drawing a blank.
Links to any publicly available PDF with good semantic structure, tagging, and accessibility to elements like tables and images would be very helpful
although of course you may also use this thread to dunk on the format, if you wish
@ChanceyFleet For anybody who wants to inspect the structure of a PDF’s tags before recommending it as an example, I cannot recommend pdfplumber enough. It’s a library and CLI utility to inspect, scrape, and debug PDFs. It works well for showing the (lack of) structure of tagged PDFs, and is less finicky than pdfinfo.
GitHub - jsvine/pdfplumber: Plumb a PDF for detailed information about each char, rectangle, line, et cetera — and easily extract text and tables.

Plumb a PDF for detailed information about each char, rectangle, line, et cetera — and easily extract text and tables. - jsvine/pdfplumber

GitHub