This is absolutely critical.
You want people with Reader to be able to save forms.
They cannot normally do this: it's a "value added option".
To be able to save forms there are four choices which bring different
amounts of revenue to Adobe.
1. The end user upgrades to Acrobat.
2. In all of the following the form is "Reader Extended" so that
people with just Reader can save it. There are three ways in which
this can be done.
(a) The form producer can license LiveCycle Reader Extensions, a
server product to reader-extend forms. Price is by negotation,
according to volume, but expect a minimum of five figures.
(b) The form producer pays for reader-extensions on a per form basis
through a service. The only one I know of is
http://www.formrouter.com/(c) The form producer uses Acrobat Professional 8.0 or above to
reader-extend the form. This is strictly limited by the EULA. I
recommend you read it carefully, but to oversimplify, you must not
process one form more than 500 times, nor have a single form processed
by more than 500 people.
Given you MIGHT exceed 500, you cannot embark on the otherwise
comparatively simple option of 2(c).
Note that this is not about security, but about switching on otherwise
locked features in the Reaer product.
Aandi Inston