Java Tutorial/PDF/TextField

Field Actions

import java.awt.Color;
import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfAction;
import com.lowagie.text.pdf.PdfBorderDictionary;
import com.lowagie.text.pdf.PdfFormField;
import com.lowagie.text.pdf.PdfName;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.pdf.TextField;
public class MainClass {
  public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    document.open();
    TextField textfield = new TextField(writer, new Rectangle(140, 790, 200, 810), "uppercase");
    textfield.setMaxCharacterLength(4);
    textfield.setOptions(TextField.ruB);
    textfield.setBorderWidth(1);
    textfield.setBorderStyle(PdfBorderDictionary.STYLE_INSET);
    PdfFormField field = textfield.getTextField();
    field.setAdditionalActions(new PdfName("Fo"), PdfAction.javaScript("app.alert("hi");", writer));
    writer.addAnnotation(field);
    TextField date = new TextField(writer, new Rectangle(140, 760, 250, 780), "date");
    date.setOptions(TextField.EDIT);
    date.setChoices(new String[] { "A", "Date" });
    date.setChoiceExports(new String[] { "12-25-2008", "01-01-2009" });
    field = date.getComboField();
    field.setAdditionalActions(PdfName.K, PdfAction.javaScript(
        "AFDate_KeystrokeEx( "dd-mm-yyyy" )", writer));
    writer.addAnnotation(field);
    document.close();
  }
}