Hey! Where does your program save files? How to get them? I've opened a .pdf 
file in Chrome on Nexus 5. Chrome, instead of downloading, opened your program 
and your program began to download a file. It was 95Mb. The file was loaded 
into your program. So where is file now in my Nexus 5? I want to get the book 
from Nexus to my PC. But I cannot find the file. Where does your program hides 
it after downloading? How to get a file from your program to my PC??