

Version numer: 6.0 Release date: June 15, 2009
A major new version release, Nitro PDF Professional 6.0 comprises several brand-new features, significant performance enhancements and feature extensions, and important bug fixes.
Entitled to a free upgrade? Customers who have valid Upgrade Assurance or who purchased Nitro PDF Professional v5 on or after May 1st, 2009 are entitled to receive the latest upgrade to v6 free of charge. If you purchased via our cleverbridge online store, you will need to obtain an upgraded serial number from this page.
If you purchased through a retail store or another channel,
you are required to provide proof of purchase to our Sales Team. Details on how to provide proof of purchase
can be found here.
If you are unsure of your Upgrade Assurance status, please contact Nitro Sales
(sales@nitropdf.com).
To view Nitro's Upgrade Policy, please click here.
Release history
Nitro PDF Professional 5.5.1
Released: 3/04/2009
New features