csharp: using Acrobat.dll pdf convert images in winform

 

 // A delegate type for hooking up change notifications. public delegate void ProgressChangingEventHandler(object sender, string e); /// <summary> /// Author:ESMAEEL ZENDEHDEL zendehdell@yahoo.com /// DATE: 88/11/17 /// Description: A Class For Exporting Image From PDF Files /// License : Free For All /// //Acrobat com /// </summary> class PDFConvertor {  public int pageCount = 0;  Acrobat.CAcroPDDoc pdfDoc = new Acrobat.AcroPDDoc();  Acrobat.CAcroPDPage pdfPage = null;  Acrobat.CAcroRect pdfRect = new Acrobat.AcroRect();  Acrobat.AcroPoint pdfPoint =new Acrobat.AcroPoint();    public event ProgressChangingEventHandler ExportProgressChanging;  protected virtual void OnExportProgressChanging(string e)  {   Thread.SpinWait(100);   if (ExportProgressChanging != null)    ExportProgressChanging(this, e);  }  #region Convert  /// <summary>  /// Converting PDF Files TO Specified Image Format  /// </summary>  /// <param name="sourceFileName">Source PDF File Path</param>  /// <param name="DestinationPath">Destination PDF File Path</param>  /// <param name="outPutImageFormat">Type Of Exported Image</param>  /// <returns>Returns Count Of Exported Images</returns>  public int Convert(string sourceFileName, string DestinationPath, ImageFormat outPutImageFormat)  {   if (pdfDoc.Open(sourceFileName))   {    // pdfapp.Hide();    pageCount = pdfDoc.GetNumPages();    for (int i = 0; i < pageCount; i++)    {     pdfPage = (Acrobat.CAcroPDPage)pdfDoc.AcquirePage(i);     pdfPoint = (Acrobat.AcroPoint)pdfPage.GetSize();     pdfRect.Left = 0;     pdfRect.right = pdfPoint.x;     pdfRect.Top = 0;     pdfRect.bottom = pdfPoint.y;     pdfPage.CopyToClipboard(pdfRect, 0, 0, 100);     string outimg = "";     string filename=sourceFileName.Substring(sourceFileName.LastIndexOf("\\"));      if (pageCount == 1)      outimg = DestinationPath + "\\" + filename + "." + outPutImageFormat.ToString();     else      outimg = DestinationPath + "\\" + filename + "_" + i.ToString() + "." + outPutImageFormat.ToString();          Clipboard.GetImage().Save(outimg, outPutImageFormat);     ////////////Firing Progress Event      OnExportProgressChanging(outimg);    }     Dispose();   }   else   {    Dispose();    throw new System.IO.FileNotFoundException(sourceFileName +" Not Found!");   }   return pageCount;  }