tf.setBorderStyle(PdfBorderDictionary.STYLE_BEVELED);
tf.setText("It was the best of times, it was the worst of times, it was the age of wisdom...");
tf.setAlignment(Element.ALIGN_CENTER);
tf.setOptions(TextField.MULTILINE | TextField.REQUIRED);
tf.setRotation(90);
PdfFormField field = tf.getTextField();
writer.addAnnotation(field);
tf = new TextField(writer, new Rectangle(250, 300, 250 + 100, 300 + 20), "Combos");
tf.setBackgroundColor(Color.RED);
tf.setBorderColor(Color.BLUE);