| Interface | Description | 
|---|---|
| AcroForm | This class represents the AcroForm content in a PDF document. | 
| CheckBoxField | CheckBoxFieldholds a check box field. | 
| ChoiceField | ChoiceFieldis the abstract class to hold a choice field. | 
| ComboField | ComboFieldholds a combo field. | 
| FieldListener | This interface is used to let the host application listen in on field focus events. | 
| FormField | FormFieldis the abstract class that is being extended by all fields such asCheckBoxField,ChoiceField,ComboField,PushButtonField,RadioButtonGroupField,SignatureFieldandTextField. | 
| ListField | ListFieldholds a list field. | 
| PushButtonField | PushButtonFieldholds a push button field. | 
| RadioButtonGroupField | RadioButtonGroupFieldholds a radio button group field. | 
| SignatureField | SignatureFieldholds a signature field. | 
| TextField | TextFieldholds a text field. |