The FileOpen Viewer enables authorized users to access documents secured by FileOpen document security and rights management solutions. FileOpen Viewer supports PDF or OPN file formats opened on an iPad, iPhone or iPod touch. Content owners may require that devices be registered or authenticated, and may impose limits on the number of devices allowed. Please contact the document owner or publisher for specific instructions or support.

What’s New

Version 2.4.6

- update for iOS 11
- fixed custom error messages

One of the last updates before we release a completely new app.

Ratings and Reviews

Pencap914 ,

God awful

I'm a pretty happy go lucky guy, but using this app makes me want to put a shotgun in my mouth. There's nothing intuitive or user friendly about this app. All I can say is good luck and I'm sorry you're here.

Andrsh2101 ,


Basic functionality. Ugly interface. Slow to open files. Crashes on large documents. No search. Waste of a lot of time.

Baetis ,


I hope the developer reads these reviews. In today's digital age people expect to be able to access data quickly and easily. This app does neither. It is slow and buggy when opening up PDFs that I use for work. It's like trying to download pictures on dial up internet! Trying a work around, but in the meantime I am stuck with this lousy app. Doesn't even deserve a one star rating.


FileOpen Systems Inc.
26.9 MB
Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Czech, Danish, Dutch, French, German, Hebrew, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish
Age Rating
Rated 4+
© 1997-2017 FileOpen Systems Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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