I contacted customer support and they had this to say: > We currently have the Kindle versions of our title available on Amazon.com and the ePub version at Goo

I contacted customer support and they had this to say: > We currently have the Kindle versions of our title available on Amazon.com and the ePub version at Google Play or IBooks for your mobile devices. We do not currently have the DRM free PDF versions available from any online re-sellers.