ChivaFrameWork/Framework/Toolkits/PDFkit/HeaderFooter1.cs

using iTextSharp.text;
using iTextSharp.text.pdf;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Drawing;
using PdfFont = iTextSharp.text.Font;
using Image = iTextSharp.text.Image;

public class HeaderFooter1 : PdfPageEventHelper
{
    private PdfTemplate totalPdfTemplate;
    private BaseFont baseFont;
    private Image headLogo;
    public override void OnOpenDocument(PdfWriter writer, Document document)
    {
        baseFont = BaseFont.CreateFont(Application.streamingAssetsPath + "/Fonts/成绩字体.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
        headLogo = Image.GetInstance(Application.streamingAssetsPath + "/Logos/成绩logo.png");

        totalPdfTemplate = writer.DirectContent.CreateTemplate(100, 100);
    }

    public override void OnEndPage(PdfWriter writer, Document document)
    {
        //添加页眉
        AddHeader(writer,document);
        //添加页脚
        AddFooter(writer, document);
    }

    public override void OnCloseDocument(PdfWriter writer, Document document)
    {
        // 在文档关闭时设置总页数
        totalPdfTemplate.BeginText();
        totalPdfTemplate.SetFontAndSize(baseFont, 10);
        totalPdfTemplate.SetTextMatrix(0, 0);
        totalPdfTemplate.ShowText((writer.PageNumber).ToString() + " 页");
        totalPdfTemplate.EndText();
    }

    private void AddHeader(PdfWriter writer, Document document)
    {
        PdfContentByte cb = writer.DirectContent;
        cb.SaveState();
        cb.SetColorFill(new BaseColor(128, 128, 128));

        string text1 = "虚拟仿真实验中心";
        float textSize1 = baseFont.GetWidthPoint(text1, 10);
        float x1 = document.PageSize.Width / 2;
        float y1 = document.Top + 20;

        // 绘制页码文本
        cb.BeginText();
        cb.SetFontAndSize(baseFont, 10);
        cb.SetTextMatrix(x1 - textSize1/2, y1);
        cb.ShowText(text1);
        cb.EndText();

        //页眉分割线
        cb.SetColorStroke(BaseColor.GRAY);
        cb.SetLineWidth(0.5f);
        float headY = document.Top + 15;
        cb.MoveTo(document.Left, headY);
        cb.LineTo(document.Right, headY);
        cb.Stroke();

        cb.RestoreState();

        float targetHeight = 30f;
        headLogo.ScaleAbsoluteWidth((targetHeight / headLogo.Height) * headLogo.Width);
        headLogo.ScaleAbsoluteHeight(targetHeight);
        headLogo.SetAbsolutePosition(document.LeftMargin,
                    document.Top + 15);
        writer.DirectContent.AddImage(headLogo);

    }

    /// <summary>
    /// 添加页脚
    /// </summary>
    /// <param name="writer"></param>
    /// <param name="document"></param>
    private void AddFooter(PdfWriter writer, Document document)
    {
        PdfContentByte cb = writer.DirectContent;
        cb.SaveState();
        cb.SetColorFill(new BaseColor(128, 128, 128));
        
        //页脚分隔线
        cb.MoveTo(document.BottomMargin, document.Bottom);
        cb.LineTo(document.PageSize.Width - document.RightMargin, document.Bottom);
        cb.Stroke();

        string text1 = $"虚拟仿真实验考核系统 @2025";
        float x1 = document.LeftMargin;
        float y1 = document.BottomMargin - 15;

        // 绘制页码文本
        cb.BeginText();
        cb.SetFontAndSize(baseFont, 10);
        cb.SetTextMatrix(x1, y1);
        cb.ShowText(text1);
        cb.EndText();

        string text2 = $"第 {writer.PageNumber} 页 / 共  ";
        float textSize2 = baseFont.GetWidthPoint(text2, 10);
        float x2 = document.PageSize.Width / 2;
        float y2 = document.BottomMargin - 15;

        // 绘制页码文本
        cb.BeginText();
        cb.SetFontAndSize(baseFont, 10);
        cb.SetTextMatrix(x2 - textSize2 / 2, y2);
        cb.ShowText(text2);
        cb.EndText();

        // 添加总页数占位符
        cb.AddTemplate(totalPdfTemplate, x2 + textSize2 / 2 - baseFont.GetWidthPoint(" ", 10), y2);

        cb.RestoreState();
    }
}