How to get prepared forms to secure automatically after signing

[Mitchell5C5A]

Hi, I have some template forms (a pre-made form that I have edited/prepared to have dropdown and fillable fields). After I sign this, I want it to automatically save as uneditable/secure - other forms I have without fillable fields save as secure once signed (using fill and sign). Is there a setting to make it automatically secure after it is signed? I am currently having to put password protection on every individual form I sign to make it uneditable which is inefficient. Any help appreciated, thanks.

[try67]

Go to the properties of the Signature field and under the Signed tab set it to lock all fields.

[try67]

Just saw you mentioned Fill & Sign. Use a Signature field, instead.