使用C#开发的图片时间戳工具，能够选择时间戳的样式 和位置，支持批量处理-Using the the picture timestamp tools of the C# development, be able to choose the style and location of the timestamp, supports batch processing

数字签名的登录，签名，电子签名，时间戳的方法(Digital signature of login, signature, electronic signature, timestamp method)