C#通过itextsharp实现PDF复制及实现自动打印

代码

     ///   <summary>
     ///  实现PDF复制
     ///   </summary>
     ///   <param name="filePath"> 源PDF文件 </param>
     ///   <param name="toPath"> 目标PDF文件 </param>
     ///   <param name="print"> 是否实现自动打印 </param>    

private   void  ConvertPDFToPDF( string  filePath,  string  toPath, bool  print)
    {
        PdfReader reader  =   new  PdfReader(filePath);
        Document document  =   new  Document(reader.GetPageSizeWithRotation( 1 ));
         int  n  =  reader.NumberOfPages;
        FileStream baos  =   new  FileStream(toPath,FileMode.Create, FileAccess.Write);
        PdfCopy copy  =   new  PdfCopy(document, baos);
        copy.ViewerPreferences  =  PdfWriter.HideToolbar | PdfWriter.HideMenubar;
         // 往pdf中写入内容   
        document.Open();
         for  ( int  i  =   1 ; i  <=  n; i ++ )
        {
            PdfImportedPage page  =  copy.GetImportedPage(reader,i);
            copy.AddPage(page);
        }
         if  (print)
        {
            PdfAction.JavaScript( " myOnMessage(); " , copy);
            copy.AddJavaScript( " this.print(true);function myOnMessage(aMessage) {app.alert('Test',2);} var msgHandlerObject = new Object();doc.onWillPrint = myOnMessage;this.hostContainer.messageHandler = msgHandlerObject; " );
        }
        document.Close();
        reader.Close();
    }

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http://pdfhome.hope.com.cn/ArcSearch.aspx?Content=循序渐进学习iTextSharp&Page=1