使用C#生成二维码并插入PDF、Word与Excel文档

using Spire.Barcode;
using System.Drawing;
using System.Drawing.Imaging;

class Program
{
    static void Main(string[] args)
    {
        BarcodeSettings settings = new BarcodeSettings();
        settings.Type = BarCodeType.QRCode;
        settings.Data = "https://www.google.com/";
        settings.Data2D = "www.google.com";
        settings.ShowTextOnBottom = true;
        settings.TextFont = new Font(FontFamily.GenericSansSerif, 16f);
        settings.QRCodeDataMode = QRCodeDataMode.Auto;
        settings.QRCodeECL = QRCodeECL.H; // 高级别容错，适合嵌入 Logo
        settings.QRCodeLogoImage = Image.FromFile("Logo.png"); // 嵌入Logo
        settings.X = 3.0f; // 模块宽度

        BarCodeGenerator generator = new BarCodeGenerator(settings);
        Image qr = generator.GenerateImage();
        qr.Save("QR Code.png", ImageFormat.Png);
    }
}

PdfDocument pdf = new PdfDocument();
PdfPageBase page = pdf.AppendPage();

// 加载二维码图像
Image qr = Image.FromFile("QR Code.png");

// 插入到页面坐标 (100, 400)，尺寸为 100x100
page.Canvas.DrawImage(PdfImage.FromImage(qr), 100, 400, 100, 100);

pdf.SaveToFile("output.pdf");

Document doc = new Document();
Section section = doc.AddSection();
Paragraph para = section.AddParagraph();

// 插入二维码图片
DocPicture picture = para.AppendPicture(Image.FromFile("QR Code.png"));

doc.SaveToFile("output.docx", FileFormat.Docx);

Workbook book = new Workbook();
Worksheet sheet = book.Worksheets[0];

// 插入二维码图片到单元格 C3（即第3行第3列）
sheet.Pictures.Add(2, 2, Image.FromFile("QR Code.png"));

book.SaveToFile("output.xlsx", ExcelVersion.Version2016);