FileOpen Systems provides a set of free plug-ins and viewers that can be used to access documents encrypted with the FileOpen software. These include plug-ins for Adobe Acrobat™ and Reader™, and standalone viewers for handheld platforms. Note that installation of the FileOpen Client software is not sufficient to enable opening of documents, the publisher's permission is also required. Click here for plug-in uninstall/removal instructions.

FileOpen Plug-in Installers for Windows
Installer Download the Plug-in Installer:
exe: FileOpenInstaller.exe
x86: FileOpenInstaller.msi
x64: FileOpenInstaller64.msi
System Requirements XP, 2003, Vista, 2008, Windows 7, Windows 8
Adobe Reader/Adobe Acrobat 6.0 or later

FileOpen Plug-in Installer for Macintosh
Installer Download the Plug-in Installer:
FileOpenInstaller.dmg
System Requirements Mac OS X
Adobe Reader/Adobe Acrobat 5.0 or later

FileOpen Viewer for iOS
App Store FileOpen Viewer for iOS
System Requirements iPad, iPhone, iPod Touch, iOS 4.0 or later.

FileOpen Plug-in Installer for Linux
Gzipped Tar Archive Download the gzipped tar archive, and use the binary installer or proceed with manual installation:
FileOpenInstaller.tar.gz
System Requirements Linux Kernel 1.4 or later
Adobe Reader/Adobe Acrobat 7.0 or 8.0 only.

FileOpen Viewer for Android
Installer Coming Soon!
System Requirements Ice Cream Sandwich or later.

FileOpen Systems has been a licensed Adobe Security Partner since 1997.