Adobe acrobat 7.0.5 sdk User Manual

Acrobat security is similar to home security. Just as you lock your doors to prevent someone 
from entering your house without permission, you use Acrobat security features to lock a 
PDF document. For example, you can use passwords to restrict users from opening, 
printing, or editing PDF documents. You can use digital signatures to certify PDF 
documents, and you can encrypt PDF documents so that only an approved list of users can 
open them. To save security settings for later use, you can create a security policy that 
stores security settings. 

This chapter focuses on how to use the Acrobat 7.0.5 SDK for security. For 
information on how to view or modify security using Acrobat 7.0 Professional or 
Acrobat 7.0 Standard, see the online help for each product. 

This chapter consists of the following sections:

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You can use the following methods to enhance document security:

Password security

Add passwords and set security options to restrict opening, 
editing, and printing PDF documents. Acrobat supports 128-
bit RC4 and 128-bit AES (Advanced Encryption Standard) 
security methods. You can choose which method to use when 
securing documents. 

Certification security

Encrypt a document so that only a specified set of users have 
access to it. See 

.