I want to edit the the fields of a PDF in Acrobat using Forms->Add or Edit Fields which . Files created in Livecycle cannot be edited in Acrobat.
Adobe® LiveCycle Designer software enables the creation of forms that Get all of the security capabilities of Adobe Acrobat in a secure server environment.
You cannot edit the form fields in Acrobat after its been generated in Livecycle but you can use some enabling features in Acrobat. Acrobat: Editing form fields