EXPORT_FORMAT
If set, field names and values shall be submitted in HTML Form format. If not set, they shall be submitted in Forms Data format (FDF).
Meaningful only if the SUBMIT_PDF and XFDF flags are not set.
If set, field names and values shall be submitted in HTML Form format. If not set, they shall be submitted in Forms Data format (FDF).
Meaningful only if the SUBMIT_PDF and XFDF flags are not set.