证件照加水印

使用方法：

1. HTML文件方式， 直接用浏览器打开 index.html 或 watermark-helper.min.html (压缩版)即可，文末有提供下载。
2. 推荐DataLink方式，将下面文本代码加入浏览器书签
   ①按住 Ctrl + D
   ②在刚刚添加的书签上右键，点击编辑或属性
   ③将弹出的地址(URL)框的内容替换为下面的文本代码，保存即可

注：请注意部分国产浏览器不支持这么长的链接，如果出现网页显示不全或操作无反应的话，请换用上一种方法。

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复制上面文本，然后在浏览器地址栏粘贴，回车即可体验

开源地址：