title: How to add Sticky Notes, Insert Text at cursor, .. Annotations in existing PDF file using iTextSharp with C#?
body: <p>I want to add Annotations comment in existing PDF file using iTextSharp with C#.</p>
  
  <p>Please give sample code to add Annotations in existing PDF file.</p>
  
  <p>Here PS Script for my Annotation:</p>
  
  <pre><code>[/Contents (My Text contents) /Rect [100 600 150 550] /SrcPg 1 /Title (My Title text) /Color [0 0 1] /Subtype /Caret /ANN pdfmark
  </code></pre>