Remember Kindle Fire.
This isn't really a new idea. Just something you had before. Just before and around 2013, I had devices like Creative Zen (Android 2.2) media player and then a Kindle Fire Tablet. Like Creative Labs is a founder and pioneer of sound on our PC's, since the 1980s, so is Adobe a founder, creator, and standard of digital documentation in almost every form.
What I am trying to say is: I had the Adobe Reader app on my devices mentioned above (both from Amazon AppStore). Please consider to support Amazon Tablets, in their AppStore and place your Acrobat Reader app, for Amazon Tablet owners again.
Ciao! :) Bella