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ASP.NETΪһ¸öPDFÎļþÌí¼Óˮӡ,ÇóÔ´Âë,¼±

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C# code:
using (System.Drawing.Image watermark = System.Drawing.Image.fromFile(HttpContext.Current.Server.MapPath("~/Gfx/Watermark.png")))
{
using (Graphics g = Graphics.fromImage(args.Image))
{
// Setup the quality settings (max)
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;

// Draw the image
g.DrawImageUnscaled(watermark, args.Image.Width - watermark.Width, args.Image.Height - watermark.Height, watermark.Width, watermark.Height);

g.Dispose();
}
}

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C# codeusing (System.Drawing.Image watermark= System.Drawing.Image.fromFile(HttpContext.Current.Server.MapPath("~/Gfx/Watermark.png")))
{using (Graphics g= Graphics.fromImage(args.Image))
    {// Setup the quality settings (max)        g.PixelOffsetMode= System.Drawing.Drawing2D.PixelOffset