C# 添加PDF页眉/页脚的示例代码

页眉添加效果：

1.2添加页脚

【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)
    {
      //新建一个PdfDocument类对象，添加一页
      PdfDocument doc = new PdfDocument();
      PdfPageBase page = doc.Pages.Add();

      //设置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;

      //调用AddFooter()方法添加页脚
      AddFooter(doc, PdfPageSize.A4, margin);

      //调用AddPageNumber()方法添加页码
      AddPageNumber(doc, margin);

      //保存并打开文档
      doc.SaveToFile("PDF页脚.pdf");
      System.Diagnostics.Process.Start("PDF页脚.pdf");
    }

    static void AddFooter(PdfDocument doc, SizeF pageSize, PdfMargins margin)
    {
      //初始化一个PdfPageTemplateElement对象，用于创建页脚
      PdfPageTemplateElement footerSpace = new PdfPageTemplateElement(pageSize.Width, margin.Bottom);
      footerSpace.Foreground = true;
      doc.Template.Bottom = footerSpace;

      //在页脚部分绘入文字
      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)
    {
      //添加页码到页脚部分
      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);
      }

    }
  }
}								 
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