I wonder if a hacky solution may be to have some kind of intermediate model to serialize the text (whether from an image of it or the raw PDF data) into LaTeX?

I wonder if a hacky solution may be to have some kind of intermediate model to serialize the text (whether from an image of it or the raw PDF data) into LaTeX? I imagine the LM has seen enough formulas in TeX to understand it, but in most PDFs formulas are just jumbles of letters.