DUCK，Fearless！

----寫在APP_CODE
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;
using System.Text;
using iTextSharp.text.pdf;
using iTextSharp.text;
/// <summary>
/// TwoColumnHeaderFooter_ 的摘要描述
/// </summary>
public class TwoColumnHeaderFooter : PdfPageEventHelper
{
    public TwoColumnHeaderFooter()
    {
        //
        // TODO: 在此加入建構函式的程式碼
        //
    }
    // This is the contentbyte object of the writer
    PdfContentByte cb;


    // we will put the final number of pages in a template
    PdfTemplate template;


    // this is the BaseFont we are going to use for the header / footer
    BaseFont bf = null;


    // This keeps track of the creation time
    DateTime PrintTime = DateTime.Now;


    #region Properties
    private string _Title;
    public string Title
    {
        get { return _Title; }
        set { _Title = value; }
    }


    private string _HeaderLeft;
    public string HeaderLeft
    {
        get { return _HeaderLeft; }
        set { _HeaderLeft = value; }
    }


    //private string _HeaderRight;
    //public string HeaderRight
    //{
    //    get { return _HeaderRight; }
    //    set { _HeaderRight = value; }
    //}


    private Font _HeaderFont;
    public Font HeaderFont
    {
        get { return _HeaderFont; }
        set { _HeaderFont = value; }
    }


    private Font _FooterFont;
    public Font FooterFont
    {
        get { return _FooterFont; }
        set { _FooterFont = value; }
    }
    #endregion


    // we override the onOpenDocument method
    public override void OnOpenDocument(PdfWriter writer, Document document)
    {
        try
        {
            PrintTime = DateTime.Now;
          // bf = BaseFont.CreateFont(@"C:\WINDOWS\FONTS\kaiu.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
            bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
            cb = writer.DirectContent;
            template = cb.CreateTemplate(50, 50);
        }
        catch (DocumentException de)
        {
        }
        catch (System.IO.IOException ioe)
        {
        }
    }


    public override void OnStartPage(PdfWriter writer, Document document)
    {
        //base.OnStartPage(writer, document);


        //Rectangle pageSize = document.PageSize;


        //if (Title != string.Empty)
        //{
        //    cb.BeginText();
        //    cb.SetFontAndSize(bf, 15);
        //    cb.SetRGBColorFill(50, 50, 200);
        //    cb.SetTextMatrix(pageSize.GetLeft(40), pageSize.GetTop(40));
        //    cb.ShowText(Title);
        //    cb.EndText();
        //}


        //if (HeaderLeft + HeaderRight != string.Empty)
        //{
        //    PdfPTable HeaderTable = new PdfPTable(2);
        //    HeaderTable.DefaultCell.VerticalAlignment = Element.ALIGN_MIDDLE;
        //    HeaderTable.TotalWidth = pageSize.Width - 80;
        //    HeaderTable.SetWidthPercentage(new float[] { 45, 45 }, pageSize);


        //    PdfPCell HeaderLeftCell = new PdfPCell(new Phrase(8, HeaderLeft, HeaderFont));
        //    HeaderLeftCell.Padding = 5;
        //    HeaderLeftCell.PaddingBottom = 8;
        //    HeaderLeftCell.BorderWidthRight = 0;
        //    HeaderTable.AddCell(HeaderLeftCell);


        //    PdfPCell HeaderRightCell = new PdfPCell(new Phrase(8, HeaderRight, HeaderFont));
        //    HeaderRightCell.HorizontalAlignment = PdfPCell.ALIGN_RIGHT;
        //    HeaderRightCell.Padding = 5;
        //    HeaderRightCell.PaddingBottom = 8;
        //    HeaderRightCell.BorderWidthLeft = 0;
        //    HeaderTable.AddCell(HeaderRightCell);


        //    cb.SetRGBColorFill(0, 0, 0);
        //    HeaderTable.WriteSelectedRows(0, -1, pageSize.GetLeft(40), pageSize.GetTop(50), cb);
        //}
    }


    public override void OnEndPage(PdfWriter writer, Document document)
    {
        base.OnEndPage(writer, document);


        int pageN = writer.PageNumber;
        String text = "Page " + pageN + " of ";
        float len = bf.GetWidthPoint(text, 8);


        Rectangle pageSize = document.PageSize;


        cb.SetRGBColorFill(100, 100, 100);


        cb.BeginText();
        cb.SetFontAndSize(bf, 8);
        cb.SetTextMatrix(pageSize.GetLeft(40), pageSize.GetBottom(30));
        cb.ShowText(text);
        cb.EndText();


        cb.AddTemplate(template, pageSize.GetLeft(40) + len, pageSize.GetBottom(30));


        cb.BeginText();
        cb.SetFontAndSize(bf, 8);
        cb.ShowTextAligned(PdfContentByte.ALIGN_RIGHT,
            "Printed On " + PrintTime.ToString(),
            pageSize.GetRight(40),
            pageSize.GetBottom(30), 0);
        cb.EndText();
    }


    public override void OnCloseDocument(PdfWriter writer, Document document)
    {
        base.OnCloseDocument(writer, document);


        template.BeginText();
        template.SetFontAndSize(bf, 8);
        template.SetTextMatrix(0, 0);
        template.ShowText("" + (writer.PageNumber - 1));
        template.EndText();
    }




}

----在主程式呼叫

 //呼叫頁碼
 TwoColumnHeaderFooter PageEventHandler = new TwoColumnHeaderFooter();
writer.PageEvent = PageEventHandler;

參考來源

http://www.mazsoft.com/blog/post/2008/04/30/Code-sample-for-using-iTextSharp-PDF-library.aspx