Create, edit and search PDF files.
What’s new in Adobe Acrobat 9.
Pros: Improved security using 256-bit encryption (could alone be worth the upgrade), TypeWriter feature “stays on” when moving from one text box or field to another, add and comment on Flash videos and Shockwave animation (movies also play within Acrobat).
Cons: Some features remain difficult to do even for power users and some great new features only available in pricier versions.
Upgrade: If you need security features and the new features that come in the more expensive versions of the software, it would be worth the upgrade. Otherwise, you’re likely to do fine with a previous version. Also, check the free acrobat.com as it may meet your basic needs. The interface has no noticeable changes, so users won’t have to adapt to a new way of doing things and instead focus on taking advantage of new and enhanced features.