Does Adobe Acrobat DC OCR actually work?

I have a ton of PDF documents that I need to OCR in order to mark up, search and analyse (literature review). I have Acrobat DC and understand that simply putting a document into Edit mode by clicking Edit PDF from the Tools menu Acrobat will OCR the document in the background.

Except it doesn't seem to work. And my last two posts have gone unanswered. So I have decided to get a little basic.

Has anyone used DC to OCR an existing document? How did you do it?

Has anyone used Adobe Acrobat DC to OCR an academic document?

Am I the only bunny who can't get this to work?

Thanks