Data in the protected cells, worksheet, or workbook cannot be added, changed, or removed. Protection can be configured in an Excel spreadsheet for individual cells, a single worksheet, or an entire workbook to prevent modification.
Removing a password - To remove the password from a protected document, follow the steps in the previous section, but delete the characters entered in the Password field. Keep in mind, however, that a user could open the file then copy its contents another document. Password to modify - Similar to read-only, this option allows the file to be viewed, but only users with the password may edit and save the file. Password to open - Entering a password for this option makes the file only readable by users who know the password.
In this video we show you How to Edit PDF Document in Microsoft Word FB.