The standard "Email Submit" button in LiveCycle Designer only submits data as XML. And of course many users would like to submit the entire PDF, and modify other submission options.
Solution
There are at least 3 different ways to perform a submit action on a LiveCycle form. The Email Submit button is probably the worst, but the XML for this button can be easily modified so that it sends the entire PDF. A better solution is to use a regular form button. It's not widely known, but the regular button provides a greater range of submit options than the email button. And for the greatest flexibility the submit can be performed with JavaScript.
Detailed explanation
This question gets asked a lot on the Acrobat User's forums and
it has a few very simple solutions. The problem is that the
component library in LiveCycle Designer contains an "Email Submit"
button. Many users naturally select this as thier submit
button. Unfortunately for this component, there are no options for
controlling the behavior of the submit in the "Object Tab".
The button submits XML formatted data only. And many users of
course would like to submit the entire PDF.
Here are 3 solutions:
Modify the underlying XML for the "Email
Submit": In LiveCycle designer with the form
displayed, select the "Email Submit" button on your form.
Use the "View > XML Source" menu item to display the XML
source code for the form. The first line of the
"Field" tag for this button should be selected and visible in the
window. If you look down the XML tags inside the field
you'll see an "event" tag that contains a "submit" action
tag. This is what needs to be modified. Everything
about the submit is controlled from here. To change the
submission format, change the "format" property to "PDF", so the
"submit" tag should now look like this:
Use a regular form button: Place a
regular form button on your form . Look on the Object
Window for the button. On the Field tag, towards the bottom
will be a set of "Control Type" radio buttons. Select the
"submit" option. There should now be a "submit" tab in the
Object window. Switch to the tab and on the "Submit As"
pulldown select PDF.
Use a JavaScript: This is the most
flexible method. With a script you can dynamically control
every aspect of the data submission. See these articles at
the Acrobat Users web site.