Automatically extract footnotes <note> from p-tags <p> in PDF – Accessibility

I exported a PDF from InDesign that needs to be digitally accessible. The problem is that Adobe InDesign places all footnotes (note) in a p-tag (p). You can, of course, manually extract the footnotes from the p-tag in Acrobat. But it's a document with almost 100 footnotes, so that would be a lot of manual work.

Is there a way to do this automatically? For example, with a (preflight) script? I hope so 😉