| FDFCompat | Compatibility layer for older API. |
| FDFCompat.FDFDoc | |
| FDFCompat.FDFField | |
| FDFDoc | FDFDoc is a class representing Forms Data Format (FDF) documents. |
| FDFField | TODO: need description FDFField represents FDFField |
| FDFFieldIterator | FDFFieldIterator is an iterator type used to traverse interactive form fields in a FDF document. |
| XFDFExportOptions |