A tool like this one should have been made at least two years ago for pre-PRS-T1 readers (from the venerable PRS-700 to PRS-350/PRS-650/PRS-950), but noone ever did and now that I have accumulated hundreds and hundreds of highlights on my PRS-650, I shivered at the thought of having to boot Windows and to export them manually book by book, so here it is at last, only 3 generations late
:
Screenshot:
You'll need Ruby and some gems (Nokogiri, CSSPool and ZipRuby) so it's probably going to be easier to setup on Linux and OS/X than on Windows.
The script is easy to tweak if you wish to change the way the annotations are rendered.