Add logo image for each page on pdf file created by iTextSharp in c# [Answered]RSS

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  cms9651

  Member

  385 Points

  953 Posts

  Add logo image for each page on pdf file created by iTextSharp in c#

  Aug 11, 2016 12:06 PM|cms9651|LINK

  Hi there, hope in your help.

  I have been trying to add an image to all pages using iTextSharp Library.

  The below code correctly it inserted all information from asp Panel "on Print" but only inserts an image in the first page.

  Is there any way to insert the image in the same way in all pages?

  Can you help me ?

  Thank you in advance.

  private void CreatePdf()
      {
          Response.ContentType = "application/pdf";
          Response.AddHeader("content-disposition", "attachment;filename="test.pdf");
          Response.Cache.SetCacheability(HttpCacheability.NoCache);
  
          StringWriter sw = new StringWriter();
          HtmlTextWriter hw = new HtmlTextWriter(sw);
  
          pnPrint.RenderControl(hw);
  
          StringReader sr = new StringReader(sw.ToString());
          string imagepath = Server.MapPath(".") + "\\Img\\logo.jpg";
  
          Document pdfDoc = new Document(PageSize.A4, 20f, 20f, 10f, 20f);
  
          try
          {
              HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
              PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
              pdfDoc.Open();
  
              for (int i = 0; i < 5; i++)
              {
                  Image image = Image.GetInstance(imagepath);
                  image.Alignment = Image.ALIGN_LEFT;
                  pdfDoc.Add(image);
                  htmlparser.Parse(sr);
              }
          }
          catch (Exception ex)
          {
              throw ex;
          }
          finally
          {
              pdfDoc.Close();
              Response.End();
          }
      }
  
  
  

  I would greatly appreciate any help you can give me in working this problem.
  
  Cheers,
  Chevy Mark Sunderland
• • Reply
  

  ryanbesko

  Contributor

  6237 Points

  1828 Posts

  Re: Add logo image for each page on pdf file created by iTextSharp in c#

  Aug 11, 2016 01:17 PM|ryanbesko|LINK

  You need to look into the PdfPageEventHelper of iTextSharp.  It provides a method called OnEndPage that allows such things.  Basically, treat the image as being in the header or footer of the document, and use absolute positioning to put it where you want, instead of just in the flow of the page content.

  http://stackoverflow.com/questions/2321526/pdfptable-as-a-header-in-itextsharp/2326193#2326193

  Mark all posts that give the desired result the answer. If you only mark the last that gave you clarification because you misread an earlier post others will be confused. Some of us are here to help others and our point to post ratio matters.
• • Reply
  

  cms9651

  Member

  385 Points

  953 Posts

  Re: Add logo image for each page on pdf file created by iTextSharp in c#

  Aug 11, 2016 01:35 PM|cms9651|LINK

  Thank you for help, but in my case don't worked : the file pdf can't opened.

  My new code :

      class _events : PdfPageEventHelper
      {
          public override void OnEndPage(PdfWriter writer, Document document)
          {
              PdfPTable table = new PdfPTable(1);
  
              table.TotalWidth = document.PageSize.Width - document.LeftMargin - document.RightMargin;
              PdfPTable table2 = new PdfPTable(2);
  
              PdfPCell cell2 = new PdfPCell(Image.GetInstance(@"C:\\intepub\\wwwroot\\img\\Logo.jpg"));
              cell2.Colspan = 2;
              table2.AddCell(cell2);
  
              PdfPCell cell = new PdfPCell(table2);
              table.AddCell(cell);
  
              table.WriteSelectedRows(0, -1, document.LeftMargin, document.PageSize.Height - 36, writer.DirectContent);
          }
      }
  
  
      private void CreatePdfFiles1()
      {
          Response.ContentType = "application/pdf";
          Response.AddHeader("content-disposition", "attachment;filename=test.pdf");
          Response.Cache.SetCacheability(HttpCacheability.NoCache);
  
          StringWriter sw = new StringWriter();
          HtmlTextWriter hw = new HtmlTextWriter(sw);
          pnPrint.RenderControl(hw);
  
          StringReader sr = new StringReader(sw.ToString());
          string imagepath = Server.MapPath(".") + "\\Img\\Logo.jpg";
          Document pdfDoc = new Document(PageSize.A4, 20f, 20f, 10f, 20f);
  
          try
          {
  
              _events e = new _events();
              PdfWriter pw = PdfWriter.GetInstance(pdfDoc, new FileStream("test.pdf", FileMode.Create));
              pw.PageEvent = e;
  
              HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
              PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
              pdfDoc.Open();
  
              for (int i = 0; i < 5; i++)
              {
                  Image image = Image.GetInstance(imagepath);
                  image.Alignment = Image.ALIGN_LEFT;
                  pdfDoc.Add(image);
                  htmlparser.Parse(sr);
              }
          }
          catch (Exception ex)
          {
              throw ex;
          }
          finally
          {
              pdfDoc.Close();
              Response.End();
          }
      }

  I would greatly appreciate any help you can give me in working this problem.
  
  Cheers,
  Chevy Mark Sunderland
• • Reply
  

  ryanbesko

  Contributor

  6237 Points

  1828 Posts

  Re: Add logo image for each page on pdf file created by iTextSharp in c#

  Aug 11, 2016 02:10 PM|ryanbesko|LINK

  Do you get any specific error?  And this is definitely a typo:

  (@"C:\\intepub\\wwwroot\\img\\Logo.jpg")

  Should be inetpub.  And you should access files like this:

  Server.MapPath("~/img/logo.jpg")

  Mark all posts that give the desired result the answer. If you only mark the last that gave you clarification because you misread an earlier post others will be confused. Some of us are here to help others and our point to post ratio matters.
• • Reply
  

  cms9651

  Member

  385 Points

  953 Posts

  Re: Add logo image for each page on pdf file created by iTextSharp in c#

  Aug 12, 2016 06:59 AM|cms9651|LINK

  ryanbesko

  Do you get any specific error?  And this is definitely a typo:

  (@"C:\\intepub\\wwwroot\\img\\Logo.jpg")

  Should be inetpub.  And you should access files like this:

  Server.MapPath("~/img/logo.jpg")

  Hi, I don't have error only pdf file can't opened because file not supported.

  I have tried modified code without success because the output not change : only inserts an image in the first page:

          string imagepath = @"\Img\logo.jpg";
          Document pdfDoc = new Document(PageSize.A4, 20f, 20f, 10f, 20f);
  
          try
          {
              _events e = new _events();
              PdfWriter pw = PdfWriter.GetInstance(pdfDoc, new FileStream("test.pdf", FileMode.Create));
              pw.PageEvent = e;
  
              HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
              PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
              pdfDoc.Open();
              for (int i = 0; i < 5; i++)
              {
                  Image image = Image.GetInstance(Server.MapPath(imagepath));
                  image.Alignment = Image.ALIGN_LEFT;
                  pdfDoc.Add(image);
                  htmlparser.Parse(sr);
              }
          }

   

  I would greatly appreciate any help you can give me in working this problem.
  
  Cheers,
  Chevy Mark Sunderland