Is it possible to create a form that allows a user with Reader to save a filled-in copy (by using "Extend Features In Adobe Reader") and to enable the user to then convert her saved copy to a non-editable document so that she can email it to 3rd parties who will not be able to make changes?
A JavaScript Automation tool can be run from a toolbar button. This article is about applying security, but it shows how to create a toolbar button with JavaScript.
http://www.acrobatusers.com/tutorials/2007/10/apply_security_with_js
But there is also a simpler way to run this script, the console window.
http://www.acrobatusers.com/tutorials/2006/javascript_console
Just copy this code, or something like it, into the console:
Thom Parker
The source for PDF Scripting Info
[url=http://www.pdfScripting.com]pdfscripting.com[/url]
The Acrobat JavaScript Reference, Use it Early and Often
[url=http://www.adobe.com/devnet/acrobat/javascript.php]http://www.adobe.com/devnet/acrobat/javascript.php[/url]
Thom Parker
The source for PDF Scripting Info
www.pdfscripting.com
Very Important - How to Debug Your Script