Doesnt crash like Adobe... Update... All my PDFs have disappeared UGH.

UPDATE !!! May 2016, have had this app for over a year and was thankful for it it didnt crash like Adobe, but it lost everything instead. I live in the country with only limited internet through my phone. As a homeschooling mom I get tons of PDFs, so loosing course work is not good when Im looking forward to town to print out or transfer information. Not happy about this. Im not sure how to retrieve what Ive lost.

One more Jesus freak... about PDF Converter- Word to PDF app, v2.0.4