In the broadest sense, I don't think we're there yet. I asked an SoC vendor to provide their chip documentation in Markdown. They refused. So, I went ahead and tried to do myself with AI.

I tried various AI tools and the results ranged from absolute garbage to something-but-not-something-but-not-quite.

I went ahead and did a section of a huge PDF by hand, just to see if what I was asking for was even feasible. After more than several hours of painstaking work spread across multiple days, I got several chapters to look identical to the source PDF in some Markdown renderers. I had to use some HTML for the more complex tables. I converted some diagrams to Markdown and some to images linked to from the Markdown.