• 通過添加新的一頁，在新建的頁面上來添加頁眉頁腳
• 通過給現有文檔直接添加頁眉頁腳
  下面將根據這兩種情況介紹具體的C#代碼操作
  （示例供參考）
  使用工具：Free Spire.PDF for .NET 4.3（社區版）

  1.新建一頁來添加頁眉頁腳

  1.1 添加頁眉

  【C#】

using Spire.Pdf;
using Spire.Pdf.Graphics;
using System.Drawing;
using System;

namespace AddHeader_PDF
{
    class Program
    {
        static void Main(string[] args)
        {
            //新建一個PdfDocument類對象，並添加一頁
            PdfDocument pdf = new PdfDocument();
            PdfPageBase page = pdf.Pages.Add();

            //設置margin
            PdfUnitConvertor unitCvtr = new PdfUnitConvertor();
            PdfMargins margin = new PdfMargins();
            margin.Top = unitCvtr.ConvertUnits(2.54f, PdfGraphicsUnit.Centimeter, PdfGraphicsUnit.Point);
            margin.Bottom = margin.Top;
            margin.Left = unitCvtr.ConvertUnits(4.17f, PdfGraphicsUnit.Centimeter, PdfGraphicsUnit.Point);
            margin.Right = margin.Left;

            //調用AddHeader()方法添加頁眉
            AddHeader(pdf, PdfPageSize.A4, margin);

            //保存並打開文檔
            pdf.SaveToFile("PDF頁眉.pdf");
            System.Diagnostics.Process.Start("PDF頁眉.pdf");
        }

        static void AddHeader(PdfDocument doc, SizeF pageSize, PdfMargins margin)
        {
            //初始化一個PdfPageTemplateElement對象，用於創建頁眉
            PdfPageTemplateElement headerSpace = new PdfPageTemplateElement(pageSize.Width, margin.Top);
            headerSpace.Foreground = true;
            doc.Template.Top = headerSpace;

            //在頁眉部分繪入文字
            PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Arial Unicode MS", 10f), true);
            PdfStringFormat format = new PdfStringFormat(PdfTextAlignment.Right);
            String headerText = "WORLD TRADE ORGANIZATION, WTO \n THE INTERNATIONAL ORGANIZATION THAT REGULATES INTERNATIONAL TRADE";
            float x = PdfPageSize.A4.Width;
            float y = 0;
            headerSpace.Graphics.DrawString(headerText, font, PdfBrushes.Black, x, y, format);

            //在頁眉部分繪入圖片
            PdfImage headerImage = PdfImage.FromFile(@"C:\Users\Administrator\Desktop\1.png");
            float width = headerImage.Width / 2;
            float height = headerImage.Height / 3;
            headerSpace.Graphics.DrawImage(headerImage, 0, 0, width, height);

        }
    }
}
 

頁眉添加效果：

1.2添加頁腳

【C#】

using Spire.Pdf;
using Spire.Pdf.Graphics;
using System.Drawing;
using System;
using Spire.Pdf.AutomaticFields;

namespace AddFooter_PDF
{
    class Program
    {
        static void Main(string[] args)
        {
            //新建一個PdfDocument類對象，添加一頁
            PdfDocument doc = new PdfDocument();
            PdfPageBase page = doc.Pages.Add();

            //設置margin
            PdfUnitConvertor unitCvtr = new PdfUnitConvertor();
            PdfMargins margin = new PdfMargins();
            margin.Top = unitCvtr.ConvertUnits(2.54f, PdfGraphicsUnit.Centimeter, PdfGraphicsUnit.Point);
            margin.Bottom = margin.Top;
            margin.Left = unitCvtr.ConvertUnits(4.17f, PdfGraphicsUnit.Centimeter, PdfGraphicsUnit.Point);
            margin.Right = margin.Left;

            //調用AddFooter()方法添加頁腳
            AddFooter(doc, PdfPageSize.A4, margin);

            //調用AddPageNumber()方法添加頁碼
            AddPageNumber(doc, margin);

            //保存並打開文檔
            doc.SaveToFile("PDF頁腳.pdf");
            System.Diagnostics.Process.Start("PDF頁腳.pdf");
        }

        static void AddFooter(PdfDocument doc, SizeF pageSize, PdfMargins margin)
        {
            //初始化一個PdfPageTemplateElement對象，用於創建頁腳
            PdfPageTemplateElement footerSpace = new PdfPageTemplateElement(pageSize.Width, margin.Bottom);
            footerSpace.Foreground = true;
            doc.Template.Bottom = footerSpace;

            //在頁腳部分繪入文字
            PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Arial Unicode MS", 10f), true);
            PdfStringFormat format = new PdfStringFormat(PdfTextAlignment.Center);
            String headerText = "Website : www.wto.org";
            float x = PdfPageSize.A4.Width / 2;
            float y = 0;
            footerSpace.Graphics.DrawString(headerText, font, PdfBrushes.Black, x, y, format);
        }
        static void AddPageNumber(PdfDocument doc, PdfMargins margin)
        {
            //添加頁碼到頁腳部分
            foreach (PdfPageBase page in doc.Pages)
            {
                PdfStringFormat format1 = new PdfStringFormat(PdfTextAlignment.Left);
                int x1 = Convert.ToInt32(page.Canvas.ClientSize.Width / 2);
                int y1 = Convert.ToInt32(page.Canvas.ClientSize.Height - margin.Bottom + 20);
                Rectangle bounds = new Rectangle(x1, y1, 20, 20);
                PdfPageNumberField field = new PdfPageNumberField();
                PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("Arial Unicode MS", 10f), true);
                field.Font = font;
                field.StringFormat = format1;
                field.Brush = PdfBrushes.Black;
                field.Bounds = bounds;
                field.Draw(page.Canvas);
            }

        }
    }
}
 

頁腳添加效果：

2.給現有PDF文檔添加頁眉頁腳

【C#】

using Spire.Pdf;
using Spire.Pdf.AutomaticFields;
using Spire.Pdf.Graphics;
using System;
using System.Drawing;

namespace PdfHeader
{
    class Program
    {
        static void Main(string[] args)
        {
            //加載一個測試文檔
            PdfDocument existingPdf = new PdfDocument();
            existingPdf.LoadFromFile("Test.pdf");

            //調用DrawHeader方法在現有文檔添加頁眉
            DrawHeader(existingPdf);

            //調用DrawFooter方法在現有文檔添加頁腳
            DrawFooter(existingPdf);

            //保存並打開文檔
            existingPdf.SaveToFile("output.pdf");
            System.Diagnostics.Process.Start("output.pdf");

        }
        //在頁面上方空白部位繪制頁眉
        static void DrawHeader(PdfDocument doc)
        {
            //獲取頁面大小
            SizeF pageSize = doc.Pages[0].Size;

            //聲明x,y兩個float型變量
            float x = 90;
            float y = 20;

            for (int i = 0; i < doc.Pages.Count; i++)
            {
                //在每一頁的指定位置繪制圖片
                PdfImage headerImage = PdfImage.FromFile("logo.png");
                float width = headerImage.Width / 7;
                float height = headerImage.Height / 7;
                doc.Pages[i].Canvas.DrawImage(headerImage, x, y, width, height);

                //在每一頁的指定位置繪制橫線
                PdfPen pen = new PdfPen(PdfBrushes.Gray, 0.5f);
                doc.Pages[i].Canvas.DrawLine(pen, x, y + height + 2, pageSize.Width - x, y + height + 2);
            }
        }

        //在頁面下方空白部位繪制頁腳
        static void DrawFooter(PdfDocument doc)
        {
            //獲取頁面大小
            SizeF pageSize = doc.Pages[0].Size;

            //聲明x,y兩個float型變量
            float x = 90;
            float y = pageSize.Height - 72;

            for (int i = 0; i < doc.Pages.Count; i++)
            {
                //在每一頁的指定位置繪制橫線
                PdfPen pen = new PdfPen(PdfBrushes.Gray, 0.5f);
                doc.Pages[i].Canvas.DrawLine(pen, x, y, pageSize.Width - x, y);

                //在每一頁的指定位置繪制文字
                y = y + 5;
                PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("黑體", 10f, FontStyle.Bold), true);
                PdfStringFormat format = new PdfStringFormat(PdfTextAlignment.Left);
                String footerText = " Website\n https://g20.org/";
                doc.Pages[i].Canvas.DrawString(footerText, font, PdfBrushes.Black, x, y, format);                 
                //在每一頁的指定位置當前頁碼和總頁碼
                PdfPageNumberField number = new PdfPageNumberField();
                PdfPageCountField count = new PdfPageCountField();
                PdfCompositeField compositeField = new PdfCompositeField(font, PdfBrushes.Black, "{0}/{1}", number, count);
                compositeField.StringFormat = new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Top);
                SizeF size = font.MeasureString(compositeField.Text);
                compositeField.Bounds = new RectangleF(pageSize.Width - x - size.Width, y, size.Width, size.Height);
                compositeField.Draw(doc.Pages[i].Canvas);
            }
        }
    }
}
 

測試效果：

以上是本次關於C#添加PDF頁眉頁腳的全部內容，兩種情況中的示例方法，可以選擇參考使用。
本文完。
（如需轉載，請註明出處）

C# 如何添加PDF頁眉頁腳