Sometimes, you want to set password to protect the Word documents from being opened or modified by other people. If you are using Office 2007 Suite or Word 2007, you’ll find it is really easy to do this.
Set password to protect Word document:
1. Click the Microsoft Office Button, go to Prepare, click Encrypt Document.
2. Type a password in the Encrypt Document dialogue box, then click OK.
You can type up to 255 characters. By default, this feature uses AES 128-bit advanced encryption. Encryption is a standard method used to help make your file more secure.
3. In the Confirm Password dialogue box, in the Reenter Password field, type the password again and click OK.
With a password preventing other people opening your Word document, you yourself also need to enter the password every time you want to read it. So, it is a bit trouble sometimes and you want to remove the password to unprotect the Word:
1. Open the Word with password.
2. Click the Microsoft Office Button, point to Prepare, click Encrypt Document.
3. In the Encrypt Document dialog box, in the Password box, delete the old password, and then click OK.
4. Save the Word document.
Then you will not be asked to enter a password to open it.
These tips are useful for Office 2007 users, but it is a little different in Office 2010 to set password to protect the document in the first step: click the File tab, go to Info, click Protect Document, then click Encrypt with Password. Then do as above to set password to Word 2007.