Auto Size Poster Art

When artwork doesn’t pull in when adding a file and you have to go to the internet for your poster art, often times they are too tall or too fat to fit the poster area. Could we get Plex to automatically adjust the artwork to fit within the parameters? I realize this may slightly stretch or shrink my images within Plex. I currently take them into a photo editing program to achieve this, but I’m currently working on a library with over 2,000 files and 80% didn’t pull in the art. Updating this is becoming a nightmare.