I have been subscribing to IWK in hard copy for a while, but am transitioning to electronic format. It takes up so much less space than the printed magazines! So I have purchased PDF collections of the old issues, and I would like to subscribe going forward to get PDFs of the new ones as they are issued. It doesn't seem there is a way to save a copy of the magazine when I subscribe via Kindle. I don't want to pay twice for the same content (other than what I've already done to transfer my back issues to electronic). How can I start receiving the magazine in PDFs that I can store on my hard disk?