Any way to preserve the highlights in an doc already OCRed by DT when re-OCRing it?

Is there anyway to preserve the Highlights and comments in a document (made in DT) when re-OCRing that text?

Long story short - I neglected to RTFM when originally OCRing the docs and didn’t realise I could / should reset the DPI to 150 (rather than leaving it at the original of the doc). Doing so reduces the file size of the docs from (e.g.) 183mb to 60, which is obviously to be desired

But when I re-OCR a text that I OCRed before I RTFM I lose the highlights:

To be specific, the highlights are still present in the doc - I can see them - but they are not recognised in the annotations pane.

Any suggestions (beyond ‘next time RTFM’)?