MP4 Converter for Mac provides powerful video converting functions as well as video editing functions, you can easily split video to get any clip to convert, crop video to remove black edges or retain certain screen area as you want. You can also take snapshot from video, join multiple videos and adjust video effects like brightness, contrast, saturation.
Free download MP4 Converter for Mac to edit video as you like on Mac Os.
$35.00 
Intel Version PowerPC Version
Download MP4 Converter for Mac, install and launch it, input videos you want to convert, and select the file you want to edit, click 
to enter corresponding Edit Window.
In Trim Window, set the start time and end time by dragging the start time and End Time slider to convert a clip from your movie.
In Crop Window, you can specify an area either by dragging the frame around the video or input values in Top, Button, Left and Right text boxes.
You can also select an output aspect ratio from Keep Original, full screen, 16:9 and 4:3.
In Effect Window, drag the sliders to set the video brightness, contrast, saturation and video volume. You can also choose a special effect from the Effect drop-down list to apply to your movie.
You are also allowed to take snapshot from video with the tool bar under preview window, or join videos by checking Merge into one file check box on the main interface.