Edit WMV Video on Mac
WMV Converter for Mac is more than a video converter, but a powerful video editing tool on Mac OS, that can help you trim video to get any segment, crop video to remove black bars or retain certain screen area as you want, join multiple videos and output one file, adjust video effects like brightness, contrast, saturation, append text or image watermark to video.
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How to edit video on Mac
1. Trim Video Segment
Choose a video in file list, click Edit and choose Trim to open Trim window.

Drag the sliders on progress bar, or input time values to set start time and end time. You can preview the video to ensure you get the exact part as you want. When you finish the splitting, click OK to return to the main window.
2. Crop area size
Choose a video in file list, click Edit and choose Effect to open effect window. Select Crop label in the left panel.

Check Enable Crop, adjust the area size by dragging the frame around video in preview window or input values in text boxes. Check Keep Aspect Ratio to change the height and width proportionally. Click Restore Defaults button, to restore the default settings.
3. Adjust Effect
Choose a video in file list, click Edit and choose Effect to open effect window. Select Effect label in the left panel.

Check Enable Effect, adjust brightness, contrast and saturation by dragging the sliders or input values. You can see the effect in real-time in the preview window. Choose an effect for the output video from the Other Effects drop down list.
4. Create video watermark
Choose a video in file list, click Edit and choose Effect to open effect window. Select Watermark label in the left panel.

Check Enable Watermark. Choose to add text watermark or image watermark. Adjust the Transparence, Vertical and Horizontal position by dragging the frame in preview window or inputting values. Select Font Style for text watermark.
5. Join videos and take snapshot
In the main window, you can join multiple videos and capture picture from video.

Select more than one file, then click
to join selected videos.
When you preview window, click
to quickly save current frame to image file.