Go to File > Info > Protect Document > Encrypt with Password. Type a password, press OK, type it again and press OK to confirm it. Save the file to make sure the password takes effect.

Removing a password from a document is a simple process, but you have to know the original password. Open the document and enter its password. Go to File > Info > Protect Document > …

Encryption is the process of converting data into a code to prevent unauthorized access. In Windows, this can be achieved using built-in tools that allow you to encrypt files and folders, …

Password protection isn't supported in PowerPoint for ODP (Open Document Presentation) files. Remove a password from a file Removing a password from a document is a simple process, …

For example: In the appropriate Microsoft 365 app select File > Save a Copy. Set the file type to PDF and select Save. The same sensitivity label and any encryption that was set on the …

Training: When you need to secure a document when you share it and not let it be forwarded to others, use Specific people when you share.

The first time you try to open a document with restricted permission, you must connect to a licensing server to verify your credentials and download a use license.

Use Mark as Final to make your Word, Excel, or PowerPoint file read-only. When you mark as final, typing, editing commands, proofing marks are disabled or turned off, and the file …

Digital signatures support this change by providing assurances about the validity and authenticity of a digital document. For more information, see Add or remove a digital signature in Office files.

Open the password-protected document. Select File > Info. Select Protect Document > Encrypt with Password. Note: In Excel, select Protect Workbook. In PowerPoint, select Protect …