C#实现在图片上添加文字和二维码

你的名字 2021-09-19 20:04 631阅读 0赞

**源程序下载地址：**  
[https://download.csdn.net/download/u012577474/11224784][https_download.csdn.net_download_u012577474_11224784]  
**原始素材：**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI1Nzc0NzQ_size_16_color_FFFFFF_t_70]  
**我的公众号二维码图片：**  
![在这里插入图片描述][20190604105457828.jpg]

**运行程序后的效果图：**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI1Nzc0NzQ_size_16_color_FFFFFF_t_70 1]

**源代码如下：**

添加图片方法：  
DrawImage(Image, 画图位置x, 画图位置y, 图片宽, 图片高)；  
添加文字方法：  
DrawString(文字, 字体, 画笔, 位置);

//窗口加载事件
         private void Form1_Load(object sender, EventArgs e)
                {
                    pictureBox1.Image = Image.FromFile("C:/Users/Administrator/Desktop/c#picture/1.jpg"); //设置背景图片
                    string imgPath = "C:/Users/Administrator/Desktop/c#picture/IT爱好者.jpg";  //要插入的二维码图片路径
                    Image QRcodePic; //用来存储读取的二维码图片
                    //读取二维码图片文件流
                    FileStream fileStream = new FileStream(imgPath, FileMode.Open, FileAccess.Read);
                    int byteLength = (int)fileStream.Length;    //二维码图片字节数
                    byte[] fileBytes = new byte[byteLength];    //根据图片字节数创建一个存储该图片的字节数组
                    fileStream.Read(fileBytes, 0, byteLength);  //读取二维码图片到数组
                    fileStream.Close();                 //关闭文件流，解除对外部文件的锁定
                    //取得二维码图片image对象
                    QRcodePic = Image.FromStream(new MemoryStream(fileBytes));  
                    Graphics g = Graphics.FromImage(pictureBox1.Image);  //创建背景图片的Graphics对象（调用该对象在背景图片上绘图）
                    //在背景图片上插入二维码图片
                    g.DrawImage(QRcodePic, 500, 120, QRcodePic.Width, QRcodePic.Height);
                    //在背景照片上添加文字 
                    PointF drawPoint = new PointF(55.0F, 160.0F);//
                    AddFont(g, drawPoint, "Name：Yfw");
                    drawPoint = new PointF(55.0F, 220.0F);//
                    AddFont(g, drawPoint, "MoviePark:IT爱好者");
                    drawPoint = new PointF(55.0F, 280.0F);//
                    AddFont(g, drawPoint, "Blog:blog.csdn.net/u012577474");
                    //刷新pictureBox1
                    pictureBox1.Refresh(); 
                }
         /*在图片上添加文字
         * Graphics g  ，目标Graphics对象     
         * string data  ，准备添加的字符串
         */
    	    private void AddFont(Graphics g, PointF drawPoint, string data)
    	    {
    		     //   Graphics g = Graphics.FromImage(pictureBox1.Image);
    		        SolidBrush mybrush;
    		        mybrush = new SolidBrush(Color.Red);  //设置默认画刷颜色
    		        Font myfont;
    		        myfont = new Font("黑体", 24,FontStyle.Bold);         //设置默认字体格式   
    		        g.DrawString(data, myfont, mybrush, drawPoint); //图片上添加文字
    		        pictureBox1.Refresh();
    	
    	    }

[https_download.csdn.net_download_u012577474_11224784]: https://download.csdn.net/download/u012577474/11224784
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI1Nzc0NzQ_size_16_color_FFFFFF_t_70]: /images/20210726/767a8adf058a4c1d947c52ed64c21555.png
[20190604105457828.jpg]: /images/20210726/e1aae5f324b6465eb4834c7bd136923d.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTI1Nzc0NzQ_size_16_color_FFFFFF_t_70 1]: /images/20210726/a61a722e6eee40d8bf9acafa5235542f.png