* @throws IOException If there is an error setting the data in the field.
*/
public void importFDF( PDDocument pdfDocument, FDFDocument fdfDocument ) throws IOException
{
PDDocumentCatalog docCatalog = pdfDocument.getDocumentCatalog();
PDAcroForm acroForm = docCatalog.getAcroForm();
acroForm.setCacheFields( true );
acroForm.importFDF( fdfDocument );
}