Does not work on iOS or any platform I tried – FileOpen Viewer Review

I had to use FileOpen to read an encrypted document. I tried to do it on iPad, Mac OS X, and even Linux. I tried to open my document and the installcomplete.pdf that is linked from the FileOpen website. Nothing worked even though the files download and look like legitimate PDF files to other viewers. Maybe it's Windows only?
Review by celsius5 on FileOpen Viewer.