The output file size depends on the source file length and the output settings. To reduce the output file size, please click the Settings button.
As we all know, the HD video is larger than general video.
The higher the output video settings you set, the larger the output video you will get.
You can set the output format as following.
If you want to get a small size of the output profile, you can choose or customize the Minimum parameters of Resolution and Video Bitrate, but the quality of your video may be affected.