本文实例讲述了C#实现给图片加水印的方法。分享给大家供大家参考，具体如下：
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
namespace Tutorial
{
class WaterMark
{
[STAThread]
static void Main(string[] args)
{
//set a working directory
string WorkingDirectory
