Security policies in Adobe® Acrobat® 8 work in a similar way to building and using styles for text, and you can create policies for passwords and certificates. If you work in an enterprise environment, you may have Adobe Policy Server, a separate Adobe Server product that manages security policies.

Figure 1: Add, remove, edit, and otherwise manage your security policies in the dialog.
For more information about working with security Acrobat 8, check out these other great tutorials:
To complete this article, you will need the following software:
Basic knowledge of working with Acrobat
Graphic designer, information developer, instructor, and author Donna Baker has written numerous books, including “Adobe Acrobat 7 in the Office” and “Adobe Acrobat 7 Tips and Tricks: The 150 Best.” She conducts workshops on Adobe Acrobat.
Excerpted from “Adobe Acrobat 8 How-Tos: 125 Essential Tips” by Donna Baker. Copyright © 2007 Donna Baker. Used with the permission of Pearson Education, Inc. and Peachpit. All rights reserved. For more information about this book, please visit peachpit.com.