Paragraph.newParagraph(doc);
Paragraph.newParagraph(doc);
Paragraph.newParagraph(doc);
para = Paragraph.newParagraph(doc);
para.appendTextContent("insert currency field here:");
FormControl currencyField = form.createCurrencyField(para,
fieldRtg, "CurrencyField", "135.467");
((CurrencyField) currencyField).setCurrencySymbol("CNY");
((CurrencyField) currencyField).setDecimalAccuracy(4);
((CurrencyField) currencyField).setSpinButonVisible(true);