Browser File Handling is a SharePoint 2010 security feature. It can be done by setting the Browser File Handling. But there's a better way.

Synchronous document conversion with Word Automation Services in SharePoint 2013. This post show what's new in SharePoint 2013.

Word Automation Services Service Application in SharePoint 2010 enables you to convert documents between type. i.e. Conversions from Word 2010 to PDF.

How to add an icon to SharePoint 2010 to represent Adobe PDF documents that are stored in document libraries. See how with the DocIcon.xml