How to add white or black edges to a video?

Tools/materials: software: quick clip 4. 14. 1, mobile phone: apple 6s Plus, system: ios 12.0.

Steps:

1, open the quick clip and enter the clip.

2. Select the video import with black edge or white edge from the album.

3. Click on the subtitles.

4. Click on the sticker.

5. Drag to the far right of the menu, select the last border, and then select white movie matting or film noir matting.

6. Select the movie black matting here, and then double-finger to enlarge the movie matting.

7. Zoom in to the whole screen, and then click √.

8. Click the small yellow sign shown in the figure.

9. When the yellow box appears, hold down the right side of the yellow box and drag it to the right side.

10, drag to the end of the video, and then go to the next step.

1 1. Click the button to the right of Use Watermark, turn off the watermark, and then click Generate.