Current location - Quotes Website - Personality signature - Adobeacrobatpro clears all grayed-out signed buttons.
Adobeacrobatpro clears all grayed-out signed buttons.
When the document is encrypted or signed, the button turns gray.

Encryption is divided into open file encryption and modified encryption.

Signature means that after being examined by the supervisor or leader, a signature stamp is affixed on the surface of _, and the document cannot be modified. You can add comments.

Open the menu bar-File-Properties-Security-Security Method _ and select Certificate Security. If the document is signed, a dialog box will pop up to explain it.