如何使用 .NET 重新编辑和水标图像

using System.IO;
using Aspose.Imaging;
using Aspose.Imaging.ImageOptions;
using Aspose.Imaging.Graphics;
using Aspose.Imaging.Brushes;
using Aspose.Imaging.Fonts;

string inputDir = @"./input";
string outputDir = @"./output";
string watermarkPath = @"./watermark.png";
Directory.CreateDirectory(outputDir);
string[] files = Directory.GetFiles(inputDir, "*.jpg");

foreach (var file in files)
{
    using (Image image = Image.Load(file))
    {
        image.Resize(800, 600, ResizeType.LanczosResample);
        var graphics = new Aspose.Imaging.Graphics(image);

        // Draw image watermark (logo)
        using (var watermark = Image.Load(watermarkPath))
        {
            int wmWidth = image.Width / 4;
            int wmHeight = watermark.Height * wmWidth / watermark.Width;
            int x = image.Width - wmWidth - 10, y = image.Height - wmHeight - 10;
            graphics.DrawImage(watermark, x, y, wmWidth, wmHeight);
        }

        // OR: Draw text watermark
        /*
        var font = new Font("Arial", 36, FontStyle.Bold);
        var brush = new SolidBrush(Color.FromArgb(120, Color.White));
        graphics.DrawString("YourBrand", font, brush, 10, image.Height - 50);
        */

        string outPath = Path.Combine(outputDir, Path.GetFileName(file));
        image.Save(outPath, new JpegOptions { Quality = 90 });
    }
}