public void drawButton(PdfFormField button, String caption, BaseFont font, float fontSize, float llx, float lly, float urx, float ury) {
        PdfAppearance pa = PdfAppearance.createAppearance(writer, urx - llx, ury - lly);
        pa.drawButton(0f, 0f, urx - llx, ury - lly, caption, font, fontSize);
        button.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, pa);
    }
public void drawButton ( PdfFormField button , String caption , BaseFont font , float fontSize , float llx , float lly , float urx , float ury ) { PdfAppearance pa = PdfAppearance . createAppearance ( writer , urx - llx , ury - lly ) ; pa . drawButton ( 0f , 0f , urx - llx , ury - lly , caption , font , fontSize ) ; button . setAppearance ( PdfAnnotation . APPEARANCE_NORMAL , pa ) ; }
@param button
@param caption
@param font
@param fontSize
@param llx
@param lly
@param urx
@param ury