title: pop-up a window from itextsharp annotation to display images and text
body: <p>I want to add and pop-up window in C# project to display an image and text by clicking on itextsharp annotation.</p>
  
  <pre><code>iTextSharp.text.pdf.PdfAnnotation annot = iTextSharp.text.pdf.PdfAnnotation.CreateLink(stamper.Writer, c.rect, PdfAnnotation.HIGHLIGHT_INVERT, PdfAction.JavaScript("app.alert('action!')", stamper.Writer));
  </code></pre>
  
  <p>above code is used to display the alert and i want to customize it to my needs can someone please give me an option.i'm not familiar with javascript. or can i use any other options ?</p>