AnyMP4 iPhone Video Converter can help iPhone users convert any popular video files to iPhone directly. The adopting of NVIDIA® CUDA™ and AMD APP speeds up the video conversion with best quality. You can use the powerful editing functions of AnyMP4 iPhone Video Converter to optimize the output video. You are allowed to modify video effect, trim video length, crop video frame, merge video chapters and add video watermark. Key functions: 1.Convert video to iPhone video This iPhone Video Converter can convert any popular video to iPhone compatible video formats. 2.Convert video to iPhone audio You can also use this software to extract audio from all video files to iPhone MP3, AAC, AIFF, M4A, etc. 3.Trim video length Use the "Trim" function to cut out the video length you want by setting the start time and end time, or by dragging the slider bar. 4.Crop video frame It is easy for you to remove the video black edges and adjust video aspect ratio with this iPhone Video Converter. 5.Watermark video Personalize your output video by addding text or image watermark for it. You can define the position and transparency of the watermark. 6.Modify video effect Adjust video settings such as Video Brightness, Contrast, Saturation, Hue and Volume to improve the video effect. 7.Select audio track and subtitle AnyMP4 iPhone Video Converter allows you to choose the audio track and subtitle for your output video. 8.Set video and audio parameters You can adjust Video Resolution, Encoder, Bitrate, Aspect Ratio, Frame Rate, as well as Audio Channels, Encoder, Bitrate and Sample Rate to perfect the video effect. 9.Preview and snapshot AnyMP4 iPhone Video Converter enables you to preview the video effect, so that you can better optimize the output video. 10.Merge video clips AnyMP4 iPhone Video Converter can help you join multiple video files into a single file.