1. Install the video size modification software, open the software, click the Add Video button or drag the video file directly with the mouse to finish adding.
2. Click the Advanced Settings button to enter the Advanced Settings panel, where the encoder of audio and video, the quality, size, bit rate and frame rate of the output audio and video, and the default of other buttons are listed, and the video size can be modified.
3. Click the video size drop-down button to modify the video size to provide the current mainstream resolution, or you can customize the modified resolution.
4. After modifying the resolution, click OK to return to the main interface, and check another convenient function of the software: click the video editing button that changes from dark to light above to enter the video editing panel, cut off the video paragraphs, cut off the black edge of the video, add the watermark and click the edit option, and a dotted box of clips will appear in the original video preview window above, so you can edit the required screen size with the mouse, or directly put the panel below and enter the editing size parameters. The length of the main video screen can be cut to 1.
5. Set the output video format. You can modify the default mp4 format of the software according to the video size. For children's paper with special format habits, you can click on the predetermined scheme to select the output video format.
6. In order to prevent the output video file from being found after the new video is generated, please change the output path, click the round button in the lower right corner of the software interface, and start to generate a new video cut according to the video standard size of the main image of Niu Qian video.