PDF Thumbnail generation

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  Hello Dear All
  
  i am Generating thumbnail images from PDF file in asp.net with c#.net. this is working fine in VS 2008 windows application.. But is not working with web application..here is my code...please help me
  
  

  using System;

  using System.Configuration;

  using System.Data;

  using System.Linq;

  using System.Web;

  using System.Web.Security;

  using System.Web.UI;

  using System.Web.UI.HtmlControls;

  using System.Web.UI.WebControls;

  using System.Web.UI.WebControls.WebParts;

  using System.Xml.Linq;

  using System.Drawing;

  using System.Windows.Forms;

  using System.Runtime.InteropServices;

  using Acrobat;

  using System.Reflection;

  using System.Runtime.CompilerServices;

  using System.Deployment;

  
  
  

  public partial class _Default : System.Web.UI.Page

  {

  protected void Page_Load(object sender, EventArgs e)

  {

  }

  private void generateThumbnailForPDF(string fileName)

  {

      CAcroPDDoc doc = null;

      CAcroPDPage page = null;

      try

      {

          // instanciate adobe acrobat

      doc = (CAcroPDDoc)new Acrobat.AcroPDDocClass();

      if (doc.Open(fileName))

      {

          if (doc.GetNumPages() > 0)

         {

          // get reference to page

          // pages use a zero based index so 0 = page1

          page = (CAcroPDPage)doc.AcquirePage(0);

      AcroPoint pt = (AcroPoint)page.GetSize();

      AcroRect rect = new AcroRectClass();

      rect.Top = 0;

      rect.Left = 0;

      rect.right = pt.x;

      rect.bottom = pt.y;

      page.CopyToClipboard(rect, 50, 50, 100);

      object obj = page;

      IDataObject data = Clipboard.GetDataObject();

      System.Drawing.Bitmap bmp = (System.Drawing.Bitmap)data.GetData(DataFormats.Bitmap);

      // calculate new height and width for thumbnail and maintain aspect ratio

      int h = (int)((double)pt.y * ((double)100 / (double)pt.x));

      int w = 100;

      // create thumbnail

      System.Drawing.Image img = bmp.GetThumbnailImage(50, 50, null, IntPtr.Zero);

      Session["ThumbNailImaage"] = img;

      }

      }

  }

  catch

  {

  //if (doc == null)

      MessageBox.Show"Acrobat     is     not     installed.     Adobe     Acrobat     is     required.",     "Acrobat     no Installed",     MessageBoxButtons.OK,     MessageBoxIcon.Error);

  }

  finally

  {

  if (page != null) Marshal.ReleaseComObject(page);

  if (doc != null) Marshal.ReleaseComObject(doc);

  }

  }

  protected void Button1_Click(object sender, EventArgs e)

  {

  string fileName = FileUpload1.PostedFile.FileName;

  generateThumbnailForPDF(fileName);

  }

  }
  
  
  Please Help me
  
  Thanks in Advanced

  • Moved by nobugz Tuesday, July 8, 2008 6:38 AM Not a 64-bit .NET question

  Friday, July 4, 2008 5:00 AM