To change a password to open a document, follow the steps below:
1.Open the document for which you want to change the password.
2.On the Protection tab, click
Manage password. When working in macOS, you can also run the File > Manage password command from the command menu.
3.In the Manage password window that appears, click Change password.
4.In the Change password window, enter the current password, the new password, and a confirmation of the new password.
For security reasons, all characters in passwords are replaced with dots. To display the password characters, click the
in the corresponding input field.
5.Click Done.
Once the verification is successfully completed, you will see a notification confirming the entered passwords match. Save the document to confirm the changes.