Hi,
Image resizing is possible with numerous programs and “apps”. Here’s one that is currently in the “Apple
Store”. It seems to get great reviews and is free.
https://apps.apple.com/us/app/image-size/id670766542
You should resize to an image size appx 1200 x 800 or there-a-bouts.
The Web Design Team continues to work to eliminate the image size restriction. It will not be long before the site’s softare will accomplish this for you “on the fly”.
In the meantime; we appreciate your patience and understanding.
Chuck