1. Insert a ‘Protected’ text form field by accessing the ‘Review’ tab on the main menu, then ‘Restrict Editing’.
2. Click ‘Restrict Editing’ to access the ‘Editing Restrictions’ dialog box.
3. Select the ‘Allow only this type of editing in the document’ option from the ‘Editing Restrictions’ dialog box and check the ‘Filling in forms’ option under ‘Select sections that you want to specifically allow or forbid.’.
4. To restrict further, select the ‘Yes, Start Enforcing Protection’ option and you will be presented with the ‘Start Enforcement Protection’ dialog box. Enter a password.
5. In the ‘Protect document’ dialog box, select the ‘Allow only this type of editing in the document’ option and check the ‘Filling in forms’ option to complete the restrictions. Save your document.