Try the different viewer types:
Try different files:

Type the URL of a publicly accessible file in the box below.

HTML5 vs Flash
.PDF
Zombie Pandemic Demo File
.PDF
Act of Sports Demo File
.PDF
NASA Civil UAV Demo File
.DOC
NMMA Demo File
.DOC
NASA: Capabilities and Technologies Demo FIle
.DOC
NASA: Sizes of Planet Candidates Demo File
.PPT
The Diabetes Problem Demo File
.PPT
The Kepler Mission Demo File
.PPT
DARPA Demo File
.PPT
Time Sheet in XLS format
.XLS
CAD file of circuit board
.DWG
CAD file of circuit board
.TIF
Current Document URL http://www.accusoft.com/wp-content/themes/accusoft_tk-1.0/images/viewer-flash-vs-html5.pdf