If you are an Adobe Acrobat user and have an older version (version 7), you might be wondering if it is worthwhile to upgrade to the latest version. Following is a link to a document which summarizes the new features in Version 8 and Version 9.
Download A9_7-8-9-comparison
Once you have decided to upgrade, you might want to take a look at the version comparisons in order to understand the differences between, Reader, Standard, Pro and ProExtended Versions. Following is a link to the version comparison document.
Download A9_legal_feature_matrix_BW
These are a little different than the ones that you might download directly from the Adobe website, since these documents have been designed to focus on the legal profession.