How to Do Everything Adobe Acrobat X

About Acrobat Security

When you assign security to a document, you can limit user access to the document. For example, you can prohibit printing of the document and copying elements from the document. You have three versions of Acrobat Security: Acrobat Password Security, Acrobat Certificate Security, and Adobe LiveCycle Policy Server.

With Acrobat Password Security, you can password-protect a document and require a permissions password to change the document password or security settings. When you use Acrobat Password Security, the same permissions level is granted to all recipients of the document. Acrobat Password Security is available with 40-bit encryption for Acrobat 3.x or Acrobat 4.x, and is available with 128-bit encryption for Acrobat ...