Moving files to new android reader

Hi, I have a zip file in my downloads on my phone, it's an E-Book, how do I move it to my new Adobe reader for androids. I had thought since I opened the reader before downloading the PDF file it would go to the readers downloads, but it went to my phones downloads.  Also how does a private conversation E-mailed to Cloud Pro a few weeks ago, manage to show up scrolling across, the Mark this dicussion as a question area under the place to type the headline on this very form I'm typing now? This has happened before, when using a search engine, Google probably, I put in the URL to one of my websites, debkellydomains, and a private conversation popped up on page one of  Google, how does this happen? It's a bit upseting to say the least!