使用C#创建PDF文档的完整教程(文本、图片、形状与表格插入)

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

namespace PdfGenerationTutorial
{
    class AddText
    {
        static void Main(string[] args)
        {
            PdfDocument doc = new PdfDocument();
            PdfPageBase page = doc.Pages.Add();

            // 报告标题
            PdfTrueTypeFont titleFont = new PdfTrueTypeFont(
                new Font("微软雅黑", 16f, FontStyle.Bold), true);
            PdfBrush titleBrush = PdfBrushes.DarkSlateBlue;

            page.Canvas.DrawString(
                "2025 年度销售数据分析报告",
                titleFont,
                titleBrush,
                60,
                40
            );

            // 报告正文说明
            string description =
                "本报告用于汇总展示公司 2025 年度的核心销售数据，" +
                "内容涵盖主要产品的销售数量、单价及总金额统计。" +
                "通过系统自动生成 PDF 文档，可以确保数据的一致性和可追溯性，" +
                "同时减少人工整理报表的工作量，适用于内部汇报、管理决策及归档场景。";

            PdfTrueTypeFont bodyFont = new PdfTrueTypeFont(
                new Font("宋体", 11f), true);
            PdfBrush bodyBrush = PdfBrushes.Black;

            RectangleF textArea = new RectangleF(
                60,
                90,
                page.Canvas.ClientSize.Width - 120,
                page.Canvas.ClientSize.Height - 160
            );

            PdfStringFormat textFormat = new PdfStringFormat();
            textFormat.Alignment = PdfTextAlignment.Justify;
            textFormat.LineSpacing = 18f;

            page.Canvas.DrawString(
                description,
                bodyFont,
                bodyBrush,
                textArea,
                textFormat
            );

            doc.SaveToFile("Report_Text.pdf");
            doc.Dispose();
        }
    }
}

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

namespace PdfGenerationTutorial
{
    class AddImage
    {
        static void Main(string[] args)
        {
            PdfDocument doc = new PdfDocument();
            PdfPageBase page = doc.Pages.Add();

            Image image = Image.FromFile("company_logo.png");
            PdfImage pdfImage = PdfImage.FromImage(image);

            // 左上角插入公司 Logo
            page.Canvas.DrawImage(pdfImage, 50, 50, 120, 60);

            // 页面中部插入示意图
            RectangleF imageArea = new RectangleF(50, 150, 220, 140);
            page.Canvas.DrawImage(pdfImage, imageArea);

            // 页面居中水印
            float pageWidth = page.Canvas.ClientSize.Width;
            float pageHeight = page.Canvas.ClientSize.Height;

            float wmWidth = pdfImage.Width * 0.4f;
            float wmHeight = pdfImage.Height * 0.4f;
            float x = (pageWidth - wmWidth) / 2;
            float y = (pageHeight - wmHeight) / 2;

            page.Canvas.Save();
            page.Canvas.SetTransparency(0.25f, 0.25f, PdfBlendMode.Multiply);
            page.Canvas.DrawImage(pdfImage, x, y, wmWidth, wmHeight);
            page.Canvas.Restore();

            doc.SaveToFile("Report_Image.pdf");
            doc.Dispose();
        }
    }
}

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

namespace PdfGenerationTutorial
{
    class Shapes
    {
        static void Main(string[] args)
        {
            PdfDocument doc = new PdfDocument();
            PdfPageBase page = doc.Pages.Add();

            // 分割线
            PdfPen linePen = new PdfPen(Color.DarkGray, 1.5f);
            page.Canvas.DrawLine(linePen, 50, 80, 500, 80);

            // 信息块背景
            PdfPen rectPen = new PdfPen(Color.SteelBlue, 1f);
            PdfBrush rectBrush = new PdfSolidBrush(Color.AliceBlue);
            page.Canvas.DrawRectangle(rectPen, rectBrush, 50, 100, 200, 90);

            // 高亮标识
            PdfPen circlePen = new PdfPen(Color.Orange, 2f);
            PdfBrush circleBrush = new PdfSolidBrush(Color.Moccasin);
            page.Canvas.DrawEllipse(circlePen, circleBrush, 300, 120, 60, 60);

            doc.SaveToFile("Report_Shapes.pdf");
            doc.Close();
        }
    }
}

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

namespace PdfGenerationTutorial
{
    class DataTableExample
    {
        static void Main(string[] args)
        {
            PdfDocument doc = new PdfDocument();
            PdfPageBase page = doc.Pages.Add();

            DataTable tableData = new DataTable();
            tableData.Columns.Add("编号");
            tableData.Columns.Add("产品名称");
            tableData.Columns.Add("单价（元）");
            tableData.Columns.Add("销量");
            tableData.Columns.Add("销售额（元）");

            for (int i = 0; i < 25; i++)
            {
                decimal price = 49.9m + i;
                int qty = i + 2;
                tableData.Rows.Add(
                    i + 1,
                    $"智能设备型号-{i + 1}",
                    price,
                    qty,
                    price * qty
                );
            }

            PdfTable table = new PdfTable();
            table.DataSource = tableData;

            table.Style.BorderPen = new PdfPen(Color.Gray, 0.5f);
            table.Style.DefaultStyle.Font =
                new PdfTrueTypeFont(new Font("微软雅黑", 10f), true);
            table.Style.DefaultStyle.StringFormat =
                new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);

            table.Style.HeaderSource = PdfHeaderSource.Rows;
            table.Style.HeaderRowCount = 1;
            table.Style.ShowHeader = true;
            table.Style.HeaderStyle.BackgroundBrush =
                new PdfSolidBrush(Color.LightSkyBlue);
            table.Style.HeaderStyle.Font =
                new PdfTrueTypeFont(new Font("微软雅黑", 11f, FontStyle.Bold), true);
            table.Style.RepeatHeader = true;

            table.Style.AlternateStyle = new PdfCellStyle();
            table.Style.AlternateStyle.BackgroundBrush =
                new PdfSolidBrush(Color.WhiteSmoke);
            table.Style.AlternateStyle.StringFormat =
                new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);

            table.Columns[0].Width = 50;
            table.Columns[1].Width = 160;
            table.Columns[2].Width = 90;
            table.Columns[3].Width = 70;
            table.Columns[4].Width = 100;

            table.Draw(page, new PointF(40, 50));

            doc.SaveToFile("Sales_Table.pdf");
            doc.Close();
        }
    }
}