Star Video Watermark for Windows is a powerful and easy-to-use tool to batch watermark your video files, like MP4, MKV, AVI. The free version has common functions to meet your needs. The paid version has full features. With the great program, you could batch add text or image watermark to your video files one time. With Watermark Editing feature, you can multiple layers watermark to video files, and you can customize watermark styles, like text rotation, transparency, text size, text color, position, text shadow and so on to your videos, and you can add image watermark to your video files with position, rotation and transparency and so on. More details please download the program freely and use it.