Carlos Minatti

Delete Original Image is a WordPress plugin to delete the the original image file uploaded.
The problem that solves, is that the original image file is usually huge (can be >6MB if it is a photograph) and it is never published on the pages, so there is no need to keep it on your server, and it it a must to delete it, if you have limited storage space and you are uploading tons of pictures.
The plugin gives you the option to enable/disable this, to be done automatically when you upload an image.
And/or you can do it in bulk for all your previously uploaded images.
Specifically, this plugin copy the ‘large’ image ( i.e: your-pic-1038×576.jpg ) to the original file path ( i.e.: your-pic.jpg ).
Nothing should brake, all other plugins should keep working, but you need to know that the original image is no longer available on your site, so please do a backup if you think you may need the original images in the future.

Delete Original Image

This plugin allows you to automatically delete the original image after upload, or do it in bulk for old images.

corgux

With this plugin you can set the minimum/exact width and height required for featured images used in standard and custom posts. You can also customise the error message shown to the user when an image isn’t large enough. Supports the Gutenberg Block Editor.

Minimum Featured Image Size

Straightforward and well written plugin. Very handy to help enforce beautiful featured imagary on your clients sites.

Perfect

Love a well designed, easy to use plugin. A few features that make it even better, but I just plugged in my minimums and it took care of everything else from there.

It works, it's simple, it puts the settings in the right place!

Set the minimum size required for featured images

Delete Original Image vs Minimum Featured Image Size