3Set 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.

4Click 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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