When you save a Microsoft Word 2007 document in Save As dialog box
- Select Tools Tab
- Choose General Options (General Options Dialog Box appers)
- Put password in "Password to open" (The file will open with full permission as normal file)
- Put password in "Password to modify". (This password enables the user to modify the contents)
- Re-enter Password to Open in Confirm Password Box
- Re-enter Password to Modify in Confirm Password Box
- Click on OK.
- Now Save file with a name.