<亲测>C# 生成带水印图片(支持9个位置生成水印)

【实例截图】生成效果

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Security;
using System.IO;

namespace Watermaker
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            lblFloat.Text = trackBar1.Value * 10   "%";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter = "图片文件(*.jpg) |*.jpg";
            openFileDialog1.Multiselect = true;
            openFileDialog1.RestoreDirectory = true;

            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                listBox1.DataSource = openFileDialog1.FileNames;
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            string strWaterImage = textBox1.Text.Trim();
            int status = 9;
            if (radioButton1.Checked)
            {
                status = 1;
            }
            else if (radioButton2.Checked)
            {
                status = 2;
            }
            else if (radioButton3.Checked)
            {
                status = 3;
            }
            else if (radioButton4.Checked)
            {
                status = 4;
            }
            else if (radioButton5.Checked)
            {
                status = 5;
            }
            else if (radioButton6.Checked)
            {
                status = 6;
            }
            else if (radioButton7.Checked)
            {
                status = 7;
            }
            else if (radioButton8.Checked)
            {
                status = 8;
            }
            else if (radioButton9.Checked)
            {
                status = 9;
            }

            if (strWaterImage.Length > 0 && listBox1.Items.Count > 0)
            {
                progressBar1.Visible = true;
                progressBar1.Minimum = 0;
                progressBar1.Maximum = listBox1.Items.Count;
                progressBar1.Step = 1;
                progressBar1.Show();

                for (int i = 0; i < listBox1.Items.Count; i  )
                {
                    string strInPath = listBox1.Items[i].ToString();
                    Image imgIn = Image.FromFile(strInPath);
                    string strOutPath = Path.GetDirectoryName(strInPath)   "\\w_"   Path.GetFileName(strInPath);
                    WaterFactory.AddImageSignPic(imgIn, strOutPath, strWaterImage, status, 100, trackBar1.Value);
                    progressBar1.PerformStep();
                }

                listBox1.DataSource = null;
                textBox1.Text = "";
                progressBar1.Visible = false;
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            openFileDialog2.Filter = "图片文件(*.jpg) |*.jpg|图片文件(*.gif)|*.gif";
            openFileDialog2.RestoreDirectory = true;
            if (openFileDialog2.ShowDialog() == DialogResult.OK)
            {
                textBox1.Text = openFileDialog2.FileName;
            }
        }

        private void trackBar1_ValueChanged(object sender, EventArgs e)
        {
            lblFloat.Text = trackBar1.Value * 10   "%";
        }

        protected override void OnFormClosing(FormClosingEventArgs e)
        {
            System.Diagnostics.Process.Start("iexplore.exe","www.51aspx.com");
        }
    }
}