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- Click the File tab -> Info -> Protect Document -> Encrypt with Password.
- Type in a password and click OK.
- Reenter the password and click OK.
- After choosing a password you should see that your document is encrypted.
Note If you are e-mailing, it is recommended to use an alternative form of communication (e.g. phone call) to share the password used to encrypt the file. For example, do not send the password in the same email as the encrypted file.
Note Keep a plain text copy of the encrypted document as a safeguard against against losing or forgetting the password. Without the password, you will not be able be able to open and read the encrypted version of the document.
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