itextSharp 对pdf的每个页面添加footer/header

  static void SetAllHeaderFooter(string inputPath)
        {

            PdfReader reader=new PdfReader(inputPath);
            PdfStamper stamp=new PdfStamper(reader , new FileStream(Guid.NewGuid().ToString("N")+".pdf" , FileMode.Create));


            for(int i=1 ; i<=reader.NumberOfPages ; i++)
            {
                AddHeaderFooter(stamp , i , reader.NumberOfPages);
            }           
            
            stamp.Close();
            reader.Close();
         
        }

  static void AddHeaderFooter(PdfStamper stamp,int pageNum,int pageCount)
        {

             PdfContentByte cb =stamp.GetOverContent(pageNum); 

             Color green=new Color(0 , 131 , 34);
             BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA , BaseFont.CP1252 , BaseFont.NOT_EMBEDDED); 

             var header=new Rectangle(50 , 795 , 570 , 815);
             header.BackgroundColor=green;
             header.BorderColor=green;
             cb.Rectangle(header);
             cb.Stroke();

             var footer=new Rectangle(50 , 35 , 570 , 55);
             footer.BackgroundColor=green;
             footer.BorderColor=green;
             cb.Rectangle(footer);
             cb.Stroke();

             cb.SetRGBColorFill(255 , 255 , 255);

             cb.BeginText();
             cb.SetFontAndSize(bf , 12);
             cb.SetTextMatrix(70 , 800);
        
             cb.ShowText("U als ondernemer");
             cb.SetTextMatrix(550-bf.GetWidthPoint("Resultaten" , 12) , 800);
             cb.ShowText("Resultaten");
             cb.EndText();
            
             String pageText =string.Format("Page {0} of  {1}",pageNum,pageCount);
             float pageLen = bf.GetWidthPoint(pageText , 12);
             cb.BeginText();
             cb.SetFontAndSize(bf , 12);
             cb.SetTextMatrix(280 , 40);
             cb.ShowText(pageText);
             cb.EndText();
             cb.ResetRGBColorFill();

         

        }

最终结果是长这样的：