title: how to clear this error iTextPdf Document error?
body: <p>I am getting a <code>The document has no pages.</code> runtime error in this program...</p>
  
  <pre><code>public class Windows {
  
      public static void main(String[] args) throws FileNotFoundException, DocumentException {
  
         java.io.File f = new java.io.File("c:/temp/text.pdf");
         java.io.FileOutputStream fo = new java.io.FileOutputStream(f);
  
         com.itextpdf.text.Document d = new com.itextpdf.text.Document(PageSize.A5, 50, 50, 50, 50);
  
         PdfWriter pw = PdfWriter.getInstance(d, fo);
         d.open();
  
         Boolean b0 = d.newPage();
         Boolean b1  =  d.addAuthor("Tamil Selvan");
  
         d.addCreator("Tamil Selvan");
         d.addHeader("Tamil Selvan Header name", "Header Content");
         d.addKeywords("These are the keywords for the document");
         d.addSubject("These are the subjects for the Document");
         d.addTitle("The Title Of the Document");
  
         d.close();
  
         System.out.println("Is the Documnet is Opened "+b0); 
         System.out.println("Is the Documnet is Working "+b1); 
      };
  }
  </code></pre>
  
  <p>How can I run this?</p>