Convert editable PDF to read-only when sent in an email - JavaScript

Question

I have a real estate company that is trying to have an application that a agent and customer can fill in the needed information, hit a submit button, have the javascript compose an email with the attached pdf.  Here's the issue I'm having: I need to be able to convert the editable pdf to a read only so when the customer receives a copy they cannot edit the information again. 
Here is my javascript code for the submit button:
// This is the form return email. It's hardcoded
// so that the form is always returned to the same address.
// Change address on your form to match the code below
// Send to buisness email
var cToAddr = "[email protected]";
// First, get the client CC email address
var cCCAddr = this.getField("1st Tenant Email").value;
if(cCCAddr != "")
// Now get the second email only if it is filled out
var cBenAddr = this.getField("2nd Tenant Email").value;
if(cBenAddr != "")
// Now get the third email only if it is filled out
var cthirdAddr = this.getField("3rd Tenant Email").value;
if(cthirdAddr !="")
// Set the subject and body text for the email message
var cSubLine = "Test - Lease Form"
var cBody = "Thank you for submitting your form.\n" + "Save the filled form attachment for your own records"
// Send the entire PDF as a file attachment on an email
this.mailDoc({bUI: true, cTo: cToAddr, cCc: (cCCAddr + "; "
+ cBenAddr + "; " + cthirdAddr), cSubject: cSubLine, cMsg: cBody});

Answer 1

Hi keely,
Firstly you will need to buy a Reader Extensions license (this allows Reader to save the form data - otherwise the client will require Acrobat). Once this is done, you will then need a button (called "Lock Down" or something) that executes a script that makes all of the fields readOnly and updates a form variable (say, "locked") to indicate that the form is locked. You will also need to add a script to the initialize event that checks for the value of "locked", then executes the readOnly script (if the form needs to be locked down). An example of a readOnly script can be found on page 434 of http://www.adobe.com/go/learn_lc_scriptingReference (see "Disabling all form fields" script)
Here is a sample form ( https://files.acrobat.com/a/preview/9df046bd-1125-4923-95de-35fc845139ca ) with a 'Lock All fields' button. Once you click this button all the forms turn 'Read only'.
Another way to accomplish this which still requires Reader Extensions or Acrobat Pro is to use digital signatures. The people you are sending this to should have certificates set up.
Hope this helps.
Regards,
Rave