iCoolsoft HD Video Converter is the best assistant to help you convert general videos to HD videos for better enjoyment. And it can also help you convert HD video to other popular video formats. And you are able to edit your output videos with the versatile editing functions. Key functions: 1. Convert HD videos as you like The HD Video Converter is able to help you convert HD videos to the popular video formats like MP4, MOV, M4V, AVI, FLV, etc. And you can create HD video with almost all videos. After conversion, you are able to enjoy them on your portable devices like Samsung Galaxy Note 3, Samsung Galaxy S4, iPhone 5S, iPhone 5C, iPhone 5, iPad Air, iPod touch, HTC one and more. What?s more, you are able to extract the audio from the video, and you can convert them to the audio formats that you like. 2. Optimize the output video as you like iCoolsoft HD Video Converter provides you with wonderful editing functions so that you can optimize the output videos as you like. You can modify the output effect by adjusting brightness, contrast, saturation, hue and volume. And it enables you to reset the video length and screen size as you like. You can also add your favorite watermark to the output video. In addition, you are able to merge several videos into one. 3. Customized settings This HD Video Converter enables you to take snapshot when you are previewing the source videos. And you can convert your files in batch. It can help you finish your conversion within several clicks.