Good Except for Portrait Videos

When you save or export a video in a portrait orientation, it adds large black bars on the sides to make it a landscape video. Please make it so I can save the video without these black bars on the sides as they greatly decrease the quality of the video. Otherwise its a great simple video editor for trimming and duplicating clips and also adding music.

Somebody14612577433 about Adobe Premiere Clip - Create, edit & share videos, v2.1.1