I always throw in a few extras because there are several that are definitely worth mentioning. First, you can now convert web pages and content to PDF using Firefox on Windows. Also, scanning documents into Acrobat and performing OCR (Optical Character Recognition) has been greatly improved. I’ve read that you can reduce file sizes by up to 50 percent using Acrobat X. Another great feature is the Password Strength Meter. If you add security to a PDF, you probably know to put a strong password on the file. Acrobat X just lends a hand by showing you the strength of the password as you type.
All in all, I really think you will benefit from the upgrade to Acrobat X, if the features mentioned are something that are a part of your everyday work life. I honestly get annoyed when program interfaces change drastically, but after working in the program for a little while, I’ve come to really appreciate the changes. For more information on the newest version of Acrobat, visit the Adobe Acrobat Pro Features page.
For a great FAQ about Acrobat and upgrading, visit the Adobe Acrobat Pro FAQ page.