During the water crisis I was left with a bit of free time on my hands during the consequent government shutdown. So to kill the time, I wrote a small Android application, called Folhuvaiy.
Folhuvaiy will also let you email your document collection to anybody.
It's very rudimentary at this point, but I hope to add more features to it in time.
Folhuvaiy is available for download on google play
Here's a screenshot.