84
3
Set the Authority.
• Encryption Level
Select the security encryption level. Available encryptions levels are High 128-bit (RC4) and Low 40-
bit (RC4), with the 40-bit (RC4) level providing weaker security than the 128-bit (RC4) level.
• Forbid users to Print
Prohibits printing of the PDF file.
• Forbid users to Edit
Prohibits page operations (add, insert and replace).
Important
When setting authority, set the Permissions Password to prevent users from canceling security.
4
Click OK to activate security.
Note
Setting or canceling security takes effect regardless of whether the file has been saved.
Canceling Security
When opening a PDF file that has security set, Delete Password is enabled in the Edit menu. To cancel
security, click Delete Password and following the message instructions.
Note
• The Permissions Password must be entered if it has been set.
• If only the Document Open password has been set, clicking Delete Password displays a confirmation
message to cancel security. Click OK to cancel security.
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