Then you can download Autodesk Inventor View 2014.
Share native Autodesk® Inventor® software data with non-Autodesk Inventor users with this freely distributable viewer that delivers high-fidelity viewing and printing of parts, assemblies and drawings.
Important: Ensure you download and install the version of Inventor View 2014 appropriate for your operating system. Additionally, you should not install this software on a computer that already has Autodesk Inventor 2014 software installed.
Autodesk Inventor View 2014 (32bit) (exe – 672610Kb)
Autodesk Inventor View 2014 (64bit) (exe – 774802Kb)
Readme (htm – 24Kb)
via Autodesk – Autodesk Inventor View 2014