title: image displays size issue
body: <p>I am trying to display some images in pdf using iTextSharp.Its working fine but my problem is, some images displays in zooming from its actual size like below image,</p>
  
  <p><img src="https://i.stack.imgur.com/2okPU.png" alt="enter image description here">
  The code I tried to display is,</p>
  
  <pre><code>iTextSharp.text.Font fontH1 = new iTextSharp.text.Font(Currier, 18, iTextSharp.text.Font.BOLD);
  Document doc1 = new Document();
  string path1 = Environment.GetFolderPath(Environment.SpecialFolder.CommonDocuments);
  path1 = path1 + "\\DOC\\Mathematicsquestions.pdf";
  iTextSharp.text.Rectangle pageSize1 = doc1.PageSize;
  PdfWriter pdf = PdfWriter.GetInstance(doc1, new FileStream(path1, FileMode.Create));
  doc1.Open();
  pdf.Open();
  
  PdfPTable table = new PdfPTable(2);
  //actual width of table in points
  table.TotalWidth = 500f;
  //fix the absolute width of the table
  table.LockedWidth = true;
  //relative col widths in proportions - 1/3 and 2/3
  float[] widths = new float[] { 0.15f, 2.5f };
  table.SetWidths(widths);
  table.HorizontalAlignment = 0;
  //leave a gap before and after the table
  table.SpacingBefore = 0f;
  table.SpacingAfter = 0f;
  
  PdfPCell cell = new PdfPCell(new Phrase("MATHEMATICS", fontH1));
  cell.Colspan = 2;
  cell.Border = 0;
  cell.HorizontalAlignment = 1;
  table.AddCell(cell);
  
  PdfPCell cell1 = new PdfPCell(new Phrase("  "));
  cell1.Colspan = 2;
  cell1.Border = 0;
  cell1.HorizontalAlignment = 1;
  table.AddCell(cell1);
  
  for (int i = 0; i &lt; mach.Count; i++)
  {
      string temsub = mach[i].ToString();
      var quepaper1 = from fm in en.Entrance_jee where fm.En_Chapter == temsub select fm;
      foreach (Entrance_jee re in quepaper1)
      {
          if (newsno == 0)
          {
              newsno = 1;
          }
          else
          {
              newsno = newsno + 1;
          }
          if (re.En_Isimage == true)
          {
              imgepath = path + re.En_Questionpage1 + ".png";
              imgepath2 = path + re.En_Answer + ".png";
              filename = System.IO.Path.GetFileName(imgepath);
              filename2 = System.IO.Path.GetFileName(imgepath2);
              decfile = decfile1 + "\\R1\\CF\\" + filename;
              decfile2 = decfile1 + "\\R1\\CF\\" + filename2;
              string status = encobj.DecryptFile(imgepath, decfile);
              status = encobj.DecryptFile(imgepath2, decfile2);
              if (status == "decrypted")
              {
                  byte[] file = File.ReadAllBytes(decfile);
                  File.Delete(decfile);
                  iTextSharp.text.Image img1 = iTextSharp.text.Image.GetInstance(file);
                  byte[] file2 = File.ReadAllBytes(decfile2);
                  File.Delete(decfile2);
                  iTextSharp.text.Image img2 = iTextSharp.text.Image.GetInstance(file2);
                  //iTextSharp.text.pdf.PdfPCell imgCell1 = new iTextSharp.text.pdf.PdfPCell();
                  //imgCell1.AddElement(new Chunk(img2, 0, 0));
  
                  table.AddCell(newsno.ToString());
                  table.AddCell(img1);
                  table.AddCell(" ");
                  table.AddCell(img2);
              }
          }
          else
          {
              table.AddCell(newsno.ToString());
              table.AddCell(re.En_Questionpage1.ToString());
              table.AddCell(" ");
              table.AddCell(re.En_Answer.ToString());
          }
      }
  }
  
  doc1.Add(table);
  doc1.Close();
  </code></pre>
  
  <p>Updated : Here is my orginal images,</p>
  
  <p><img src="https://i.stack.imgur.com/u79sB.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/ocHMS.png" alt="enter image description here"></p>
  
  <p>Someone tell me where I am wrong?</p>