常用技能：

逆天博客：

PSD源码：

 

通用水印V1.2 下载：

逆天通用水印支持Winform，WPF，Web，WP，Win10。支持位置选择（9个位置 ==》[X]）：

本次添加了一些新东西，比如剪贴板之类的水印操作。完善了部分功能（比如文件过滤，非Bitmap图片的处理，以及一些其他玩意等待你的发现）

先贴下新增的效果：

单个图片水印

多文件直接水印

 

网页图片批量转

word文档图片批量转

剪贴板图片水印

自动化配置

上篇重复的技术点我就不继续说了，这次主要贴一下剪贴板系列的code

using System;using System.Collections.Generic;using System.Drawing;using System.Drawing.Imaging;using System.IO;using System.Net;using System.Text;using System.Text.RegularExpressions;using System.Windows;namespace WaterMarkAPP.Common{    public class ClipboardHelper    {        /// 
        /// 获取剪贴板里的图片        /// 
        /// 
             public static IEnumerable
     
       GetImagePathList()        {            var imgPathList = new List
      
       ();            var data = Clipboard.GetDataObject();            var formats = data.GetFormats();            //二进制存储 (存储在剪贴板的截图|画画图内的图片)            if (data.GetDataPresent(DataFormats.Dib, true))            {                var imgSorce = Clipboard.GetImage();                Bitmap bmp = new Bitmap(imgSorce.PixelWidth, imgSorce.PixelHeight, PixelFormat.Format32bppPArgb);                BitmapData bmpdata = bmp.LockBits(new Rectangle(System.Drawing.Point.Empty, bmp.Size), ImageLockMode.WriteOnly, PixelFormat.Format32bppPArgb);                imgSorce.CopyPixels(Int32Rect.Empty, bmpdata.Scan0, bmpdata.Height * bmpdata.Stride, bmpdata.Stride);                bmp.UnlockBits(bmpdata);                CreateDirectory();                string filePath = string.Format(@"Images\{0}.png", Guid.NewGuid());                bmp.Save(filePath, ImageFormat.Png);                imgPathList.Add(filePath);            }            //图片文件            if (data.GetDataPresent(DataFormats.FileDrop, true))            {                string[] objs = (string[])data.GetData(DataFormats.FileDrop, true);                if (objs != null)                {                    for (int i = 0; i < objs.Length; i++)                    {                        imgPathList.Add(objs[i]);                    }                }            }            //剪贴板内单文件            if (data.GetDataPresent(DataFormats.Bitmap, true))            {                string filePath = SaveImg(data.GetData(DataFormats.Bitmap, true) as Bitmap);                if (filePath != null) { imgPathList.Add(filePath); }            }            //HTML页面里面的图片（网页 + word）            if (data.GetDataPresent(DataFormats.Html, true))            {                var obj = data.GetData(DataFormats.Html, true);                if (obj != null)                {                    string dataStr = obj.ToString();                    imgPathList.AddRange(DownloadImg(dataStr));                }            }            return imgPathList;        }        /// 
       
        /// 保存图片，返回图片地址        /// 
        /// 
               /// 
               private static string SaveImg(Bitmap bitmap)        {            if (bitmap == null) { return null; }            CreateDirectory();            string filePath = string.Format(@"Images\{0}.png", Guid.NewGuid());            try { bitmap.Save(filePath, ImageFormat.Png); return filePath; }            catch (Exception ex) { DNTLog(ex); return null; }        }        /// 
       
        /// 批量下载图片        /// 
        /// 
       页面字符串        /// 
       成功条数        /// 
               private static IEnumerable
       
         DownloadImg(string dataStr)        {            var imgPathList = new List
        
         ();            var collection = Regex.Matches(dataStr, @"
         
          ]*)\s*src=('|\"")([^'\""]+)('|\"")", RegexOptions.ECMAScript);            WebClient webClient = new WebClient();            foreach (Match item in collection)            {                string imgPath = item.Groups[3].Value;                try                {                    CreateDirectory();                    string filePath = string.Format(@"Images\{0}", Path.GetFileName(imgPath));                    webClient.DownloadFile(item.Groups[3].Value, filePath);//剪贴板的图片没有相对路径                    imgPathList.Add(string.Format(@"{0}\{1}", Directory.GetCurrentDirectory(), filePath));                }                catch (Exception ex) { DNTLog(ex); }            }            return imgPathList;        }        private static void DNTLog(Exception ex)        {            File.WriteAllText("log.dnt", ex.ToString(), Encoding.UTF8);        }        /// 
          
 /// 创建文件夹 /// 
        private static void CreateDirectory()        {            if (!Directory.Exists("Images"))            {                Directory.CreateDirectory("Images");            }        }    }}
         
        
       
      
     

水印帮助类注意点

using System.Drawing;using System.Drawing.Drawing2D;using System.Drawing.Imaging;using System.Text;using WaterMarkAPP.Enums;using WaterMarkAPP.Model;namespace WaterMarkAPP.Common{    /// 
    /// 水印帮助类    /// 
    public class WaterMarkHelper    {        public static bool TryFromFile(string imgPath, ref Image img)        {            try            {                img = Image.FromFile(imgPath);                return true;            }            catch            {                return false;            }        }        #region 设置水印        /// 
        /// 设置水印        /// 
        ///         ///         /// 
             public static Image SetWaterMark(string imgPath, WaterMark model)        {            Image imgSource = null;//背景图            Image markImg = null;//水印图片            if (!TryFromFile(imgPath, ref imgSource))            {                return null;            }            //水印检验（文字，图片[路径下是否存在图片]）            #region 水印校验+水印处理            if (model == null) { return null; }            if (!System.IO.File.Exists(imgPath)) { return null; }//看看原图是否存在            //根据水印类型校验+水印处理            switch (model.WaterMarkType)            {                case WaterMarkTypeEnum.Text:                    if (string.IsNullOrEmpty(model.Text))                    {                        return null;                    }                    else                    {                        markImg = TextToImager(model);//水印处理-如果是文字就转换成图片                    }                    break;                case WaterMarkTypeEnum.Image:                    if (!System.IO.File.Exists(model.ImgPath))                    {                        return null;                    }                    else                    {                        if (!TryFromFile(model.ImgPath, ref markImg))//获得水印图像                        {                            return imgSource;                        }                    }                    break;                case WaterMarkTypeEnum.NoneMark:                    return imgSource;            }            #endregion            #region 创建颜色矩阵            //创建颜色矩阵            float[][] ptsArray ={                                 new float[] {1, 0, 0, 0, 0},                                 new float[] {0, 1, 0, 0, 0},                                 new float[] {0, 0, 1, 0, 0},                                 new float[] {0, 0, 0, model.Transparency, 0}, //注意：0.0f为完全透明，1.0f为完全不透明                                 new float[] {0, 0, 0, 0, 1}};            ColorMatrix colorMatrix = new ColorMatrix(ptsArray);            //新建一个Image属性            ImageAttributes imageAttributes = new ImageAttributes();            //将颜色矩阵添加到属性            imageAttributes.SetColorMatrix(colorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Default);            #endregion            //原图格式检验+水印            #region 原图格式检验+水印            //判断是否是索引图像格式            if (imgSource.PixelFormat == PixelFormat.Format1bppIndexed || imgSource.PixelFormat == PixelFormat.Format4bppIndexed || imgSource.PixelFormat == PixelFormat.Format8bppIndexed)            {                #region 索引图片,转成位图再加图片                //转成位图,这步很重要                 Bitmap bitmap = new Bitmap(imgSource.Width, imgSource.Height);                Graphics graphic = Graphics.FromImage(bitmap);                #region 缩放处理                //如果原图小于水印图片 等比缩放水印图                if (markImg.Width >= imgSource.Width || markImg.Height >= imgSource.Height)                {                    markImg = ImageShrink(imgSource, markImg);                }                #endregion                #region 水印位置                //水印位置                int x;                int y;                WaterMarkLocations(model, imgSource, markImg, out x, out y);                #endregion                //将原图画在位图上                graphic.DrawImage(imgSource, new Point(0, 0));                //将水印加在位图上                graphic.DrawImage(markImg, new Rectangle(x, y, markImg.Width, markImg.Height), 0, 0, markImg.Width, markImg.Height, GraphicsUnit.Pixel, imageAttributes);                graphic.Dispose();                return bitmap;                #endregion            }            else            {                #region 非索引图片,直接在上面加上水印                Graphics graphic = Graphics.FromImage(imgSource);                #region 缩放处理                //如果原图小于水印图片 等比缩放水印图                if (markImg.Width >= imgSource.Width || markImg.Height >= imgSource.Height)                {                    markImg = ImageShrink(imgSource, markImg);                }                #endregion                #region 水印位置                //水印位置                int x;                int y;                WaterMarkLocations(model, imgSource, markImg, out x, out y);                #endregion                //将水印加在原图上                graphic.DrawImage(markImg, new Rectangle(x, y, markImg.Width, markImg.Height), 0, 0, markImg.Width, markImg.Height, GraphicsUnit.Pixel, imageAttributes);                graphic.Dispose();                return imgSource;                #endregion            }            #endregion        }        #endregion        #region 水印处理-文字转图片        /// 
        /// 水印处理-文字转图片        /// 
        ///         /// 
             private static Image TextToImager(WaterMark model)        {            Font f = new Font(model.FontFamily, model.FontSize, model.FontStyle);            Bitmap fbitmap = new Bitmap(Encoding.GetEncoding("GBK").GetByteCount(model.Text) / 2 * f.Height, f.Height);            Graphics gh = Graphics.FromImage(fbitmap);//创建一个画板;            gh.SmoothingMode = SmoothingMode.AntiAlias;            gh.DrawString(model.Text, f, model.BrushesColor, 0, 0);//画字符串            return fbitmap as Image;        }        #endregion        #region 水印位置        /// 
        /// 水印位置        /// 
        ///         ///         ///         ///         ///         private static void WaterMarkLocations(WaterMark model, Image imgSource, Image markImg, out int x, out int y)        {            x = 0;            y = 0;            switch (model.WaterMarkLocation)            {                case WaterMarkLocationEnum.TopLeft:                    x = 0;                    y = 0;                    break;                case WaterMarkLocationEnum.TopCenter:                    x = imgSource.Width / 2 - markImg.Width / 2;                    y = 0;                    break;                case WaterMarkLocationEnum.TopRight:                    x = imgSource.Width - markImg.Width;                    y = 0;                    break;                case WaterMarkLocationEnum.CenterLeft:                    x = 0;                    y = imgSource.Height / 2 - markImg.Height / 2;                    break;                case WaterMarkLocationEnum.CenterCenter:                    x = imgSource.Width / 2 - markImg.Width / 2;                    y = imgSource.Height / 2 - markImg.Height / 2;                    break;                case WaterMarkLocationEnum.CenterRight:                    x = imgSource.Width - markImg.Width;                    y = imgSource.Height / 2 - markImg.Height / 2;                    break;                case WaterMarkLocationEnum.BottomLeft:                    x = 0;                    y = imgSource.Height - markImg.Height;                    break;                case WaterMarkLocationEnum.BottomCenter:                    x = imgSource.Width / 2 - markImg.Width / 2;                    y = imgSource.Height - markImg.Height;                    break;                case WaterMarkLocationEnum.BottomRight:                    x = imgSource.Width - markImg.Width;                    y = imgSource.Height - markImg.Height;                    break;            }        }        #endregion        #region 缩放水印        /// 
        /// 等比缩放水印图（缩小到原图的1/3）        /// 
        ///         ///         /// 
             private static Image ImageShrink(Image imgSource, Image markImg)        {            int w = 0;            int h = 0;            Image.GetThumbnailImageAbort callb = null;            //对水印图片生成缩略图,缩小到原图的1/3(以短的一边为准)                                 if (imgSource.Width < imgSource.Height)            {                w = imgSource.Width / 3;                h = markImg.Height * w / markImg.Width;            }            else            {                h = imgSource.Height / 3;                w = markImg.Width * h / markImg.Height;            }            markImg = markImg.GetThumbnailImage(w, h, callb, new System.IntPtr());            return markImg;        }        #endregion    }}

 

源码参考：