Consider which version of Acrobat and Adobe Reader people are using when filling the form. Setting the target version of Adobe Reader and Acrobat in LiveCycle Designer ES can help you create a form design that is compatible. See To select the Acrobat and Adobe Reader target version.
Adobe Reader supports a smaller set of functionalities and provides users with the ability to fill and print forms, and in some situations, submit them. To extend the functionality of Adobe Reader to match that of Acrobat, you must set usage rights for the form using LiveCycle Reader Extensions ES.
Acrobat and Adobe Reader support client-side data exchange processing for interactive PDF forms.

Considerations for creating forms for use with Acrobat and Adobe Reader