Transferring a books from Kindle on PC to Calibre and vice versa
I have downloaded the free Kindle app for PC and downloaded my first book from Amazon. Pretty cool!
What I would also like to know is:
1. Can I transfer a PDF book I already have on my computer to the Kindle for PC? If so, how?
2. Can you change the format once it is in the Kindle?
3. I know you can change format in Calibre. Can you transfer e-books in Calibre to the Kindle for PC and vice versa? If so, how, in both instances?