I have written my document with 50 \{footnote} elements. I now realize I need to produce a bibliography page at the end of the doc.
Is there any way to have LaTeX turn those footnotes into a bibliography section?
Do I need to change them all to \autocite{} elements and then include something like this
\printbibliography[heading=bibempty] % if you want a bibiography at the end as well
\end{document}

\footnotes look at the moment. If they contain the raw text of the citations, additional work will be needed to convert them to a.bibfile to make them usable withbiblatex. If you are already using a.bibfile, things might be easier. It is also not quite clear to me what the expected output should be. Can you clarify that a bit? Ideally you would also include a short example document (a so-called MWE: https://tex.meta.stackexchange.com/q/228/35864) of how your\footnotes look now. – moewe Mar 02 '19 at 05:58