Java Tutorial/PDF/Print

warn you before printing the document

   <source lang="java">

import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.Paragraph; import com.lowagie.text.pdf.PdfAction; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfDestination; import com.lowagie.text.pdf.PdfWriter; 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();
   document.add(new Paragraph("test."));
   PdfAction copyrightNotice = PdfAction.javaScript(
       "app.alert("Warning: this document is protected by copyright.");\r", writer);
   writer.setAdditionalAction(PdfWriter.WILL_PRINT, copyrightNotice);
   
   document.close();
 }

}</source>