In this tutorial, we're going to learn how to prevent WordPress from generating multiple (resized) versions of an image. As of WordPress 4.8.1, with the default Twenty Seventeen theme, WordPress will generate six additional resized versions of a single image. I've tested it on a clean installation, and here's a screenshot to prove it.
Sourav Kundu is an avid marketer with a passion for all things digital. From email marketing to app re-engagement campaigns, he loves putting on multiple hats during the workday. He's available for consultation over Twitter (https://twitter.com/souravify) or his website (http://souravkundu.in/).