Are you working for eLearning projects? then you should know about Mozilla has launched PDF.js a web PDF viewer plugin. This plugin helps you to display PDF files inside HTML code. I did customized PDF.js prebuild structure for easy usage. Take a quick look at this post and it will explain you how to configure, tracking reports(Google Analytics) …
via 9lessons Programming Blog:
Web PDF Viewer for Monetization.

For more info: Web PDF Viewer for Monetization.