Is there a functionality in the Story Map Editor that allows me to change image size once I have uploaded it from my computer?

ConnorJopson

My image is too large but I would like to keep the resolution and make the image smaller size in the actual story map presentation.

RupertEssinger

In order to answer your question, we need to know which Story Map app you are using. There are several . Each one has its own Editor:
Apps | Story Maps