water mark

图片水印

https://www.oschina.net/p/watermarkjs?nocache=1542795300822

https://www.cnblogs.com/pengjunhao/p/6792488.html

 

 

div水印

https://github.com/Liugq5713/watermarkToDiv

 

其他：

npm

https://www.cnblogs.com/limitcode/p/7906447.html

 

https://www.toolmao.com/github-dist-src-tree