Transfer of "yellow stickies" and other comments to new PDF

Question: (I don't know if this is even feasible). I create documentation manuals in PDF for end users. Many of the "pepper" their documents with yellow stickies and other type of comments. If I release a new version which has updates, deletions, insertions, etc (but is still pretty much the original manual), is there a way that they can export all of their little add-ins to the new PDF.

Thank you for any thoughts you might have. From my perspective there is an export issue, an import issue, a privilege issue, and of course what Adobe software they might have access to.

Many of them resist moving to updated documentation because of this issue