title: Export big PNG to PDF with ItextSharp
body: <p>I have one image with width:1024px and height:100000px 
  I want to export this image into pdf with full size, but the image is put only on first page,..</p>
  
  <p>here is my code:</p>
  
  <pre><code>Document doc = new Document();
  try
  {
      iTextSharp.text.pdf.PdfWriter.GetInstance(doc, new FileStream(generatedPdfSaveFilePath, FileMode.Create));
      doc.Open();
      Image jpg = Image.GetInstance(imagePath);
      jpg.Border = Rectangle.BOX;
      jpg.BorderWidth = 5f;
      doc.Add(jpg);
      doc.Add(new Paragraph("Original Width: " + jpg.Width.ToString()));
      doc.Add(new Paragraph("Original Height " + jpg.Height.ToString()));
      doc.Add(new Paragraph("Scaled Width: " + jpg.ScaledWidth.ToString()));
      doc.Add(new Paragraph("Scaled Height " + jpg.ScaledHeight.ToString()));
      float Resolution = jpg.Width / jpg.ScaledWidth * 72f;
      doc.Add(new Paragraph("Resolution: " + Resolution));
  }
  catch (Exception ex)
  {
      //Log error;
  }
  finally
  {
      doc.Close();
  }
  </code></pre>
  
  <p>How export big image with full size on multiple pages?</p>