tpOn.moveTo(width / 2 - sLen / 2, height / 2 - sLen / 2);
tpOn.lineTo(width / 2 + sLen / 2, height / 2 + sLen / 2);
tpOn.moveTo(width / 2 - sLen / 2, height / 2 + sLen / 2);
tpOn.lineTo(width / 2 + sLen / 2, height / 2 - sLen / 2);
tpOn.stroke();
if (normal) {
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, OFF_STATE, tpOff);
field.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, onValue, tpOn);
} else {