In reply to Francisco.

I applaud both of you for sharing this invaluable information.  For reasons that only Jeff Bezos knows AMAZON refuses to provide this functionality in their PC or Web apps.  I converted a PDF for a software manual and was annotating it on the Kindle.  Then I wanted to put the content back onto the PC so I could use dual screen, or maybe even copy and paste, to make a company guide to the software and to the manual.  Alas, Amazon provided no means to do so, and when asked, promptly and politely said it COULD NOT BE DONE.

BOOHAH!

Done and DONE!

Don