Livecycle Workbench is used for creating process and process contains
flow of different steps/actions to be performed. For Instance, form is
once submitted by user after filling it up, then that form comes as
request to second user for his approval via signing etc & so on...If you
have this type of requirement then Livecycle Workbench would be the
right product. Assuming, PDF Form (XFA) is already or has to be created
in Livecycle Designer.