4Videosoft iPhone 4S Video Converter is specially designed for iPhone 4S users to convert video files to iPhone 4S video on Mac OS. This professional Mac iPhone 4S Video Converter can be used to convert any mainstream video formats to iPhone 4S video MP4, AVI, etc. and MP3, M4A audio. This Mac iPhone 4S Video Converter can also be used to edit iPhone 4S video before converting. Trim video length, crop video frame, modify video effect, merge video chapters and add video watermark are all can be operated with this iPhone 4S Video Converter for Mac.
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