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Word - Add or Remove Protection in your Document, Workbook, or Presentation
In Office, you can use a password to help prevent other people from opening or modifying your documents, workbooks, and presentations. Then you can easily remove passwords to unprotect a document or workbook if read-only is no longer required. Also, you can use document protection to restrict the types of changes that reviewers can make.
Your IT administrators set password policy for the apps for Office that include basic rules.
Warning: It's important to know that if you don't remember your password Microsoft can’t retrieve your forgotten passwords.
Add or remove a password to control access
To set a password on your Word, Excel or PowerPoint file click File > Info > Protect Document > Encrypt with Password. You'll be prompted to create a password, then to confirm it. After you've added a password to your file you'll want to be sure to save the file to make sure the password takes effect.
End Users: Keep your password in a safe place. If you lose or forget the password, it cannot be recovered or removed.
Enterprises: If you're concerned about losing access to password protected Office files in your enterprise, the DocRecrypt tool might be for you. Note that you have to deploy the DocRecrypt tool BEFORE the file in question is password protected. DocRecrypt can't retroactively recover files that were password protected before you deployed DocRecrypt. For more information see: Remove or reset file passwords using DocRecrypt.
After you've added a password to your file, that password will need to be entered before anybody can open the file.
To remove the password open the file, which will require the current password, go to File > Protect Document > Encrypt with Password. Delete the password and click OK. Be sure to save your file to make that change permanent.
Allow users to read your file, but control changes
In an open document, click File > Info > Protect Document. You'll see the following options.
Mark as Final
Communicate that you're sharing a completed version of a file so that reviewers or readers are less likely to make inadvertent changes.
When a file is marked as final, typing, editing, commands, and proofing marks are disabled or turned off and the file becomes read-only.
When you mark a document as final, Word asks you to save the file. The next time you open it, you will see a yellow MARKED AS FINAL message at the top of the document. If you click Edit Anyway, the document will no longer be marked as final.
Important: Mark as Final is not a security feature. Any user who opens the file will be able to click Edit Anyway if they wish to bypass this setting. Mark as Final simply notifies people who open the file that it should be considered final. If you want to enforce protection from editing you should use the Restrict Editing function described below.
Restrict Editing (Word Only)
Control what types of changes can be made to the document.
When you select Restrict Editing, you see these options:
Formatting restrictions This reduces formatting options, preserving the look and feel you've selected. Click Settings to select which styles are allowed.
Editing restrictions You control how the file can be edited or you can disable editing. Click Exceptions or More users to control those who can edit.
Towards the bottom of the pane you'll find Restrict Permission...: Use Windows Live ID to restrict permissions.
Use a Windows Live ID or a Microsoft Windows account to restrict permissions. You can apply permissions via a template that is used by your organization, or you can add permissions by clicking Restrict Access. To learn more about Information Rights Management see Information Rights Management in Office.
When you're ready to turn on the editing restrictions you've selected click Yes, Start Enforcing Protection to add a password or select user authentication.
Lets you apply permissions via a template that is created by your organization. For more information on using Information Rights Management (IRM) to restrict access to your document see: Information Rights Management in Office.
Add a Digital Signature
Add an invisible digital signature that verifies the authenticity of the file.
Digital signatures authenticate digital information such as documents, email messages, and macros by using computer cryptology.
Protect Individual Worksheets or Workbook Structure in your Excel spreadsheet
Microsoft Excel has a couple of additional items that you can lock down. You will also see these settings on File > Info > Protect Workbook.
Protect Current Sheet: To control what changes can be made to the currently selected worksheet choose Protect Current Sheet. You'll be prompted to enter, then confirm, a password for the sheet. You will also have the option to select what things users of the sheet should be allowed to do, such as selecting, formatting, inserting, deleting or making other changes to the sheet. Be sure to save the file after you set the password to ensure the new password is in place.
To remove this protection just go thru the same steps as above and enter the current password in the Password to unprotect sheet field. Be sure to save the file after removing the protection to ensure the sheet is now open for all users.
Protect Workbook Structure: By using the Protect Workbook Structure feature, you can select password protection and select options to prevent users from changing, moving, or deleting important data. When you select Protect Workbook Structure you'll be prompted to enter an optional password.
To remove this protection click Protect Workbook Structure again. If you didn't choose a password when you added the protection then the protection will just be removed without any further steps. If you did choose a password, Excel will prompt you for that password in the Unprotect Workbook dialog box.
Remove protection from your file
Remove Mark as Final
Open the file and you will see a yellow MARKED AS FINAL message at the top of the file. If you click Edit Anyway, the document will no longer be marked as final.
Remove editing restrictions
In the file, click File > Info > Protect Document > Restrict Editing and click Stop Protection at the bottom of the Restrict Editing pane.
Remove or change restricted access
To remove or change restricted access, open the file, and then click Change Permission in the yellow bar at the top of the document.
Remove digital signature
To remove a digital signature, open the file, and you'll see a notice in the yellow bar at the top indicating that the file has been marked as final. Click Edit Anyway and confirm the dialog box that says that editing will remove the signatures from the document.