Export marked sentences within a pdf document?

Hi there,

I want to export all marked sentences I've "produced" within a pdf file.

I am working like that: Downloading to my iPad. Reading and marking the pdfs with Goodreader. (Re-)Uploading them to my Cloud. View them on the PC.

However, I don't know how to manage that I can just extract or export the sentences I marked. I want just them, not any comments, nor a printout of the marked sentences, but with the rest of the pdf and with blank comments or something as well :/

Is that possible, and if yes, how?

Thank you in advance for any help!

BB

Edit: spellcheck