Since I’ll forget how to do this and have to figure it out… again.
Open the JPG in a web browser
Take a screenshot
Crop the screenshot
Download the screenshot. It’ll be a PNG
Open in Photos
Save as… JPG
Done
Since I’ll forget how to do this and have to figure it out… again.
Open the JPG in a web browser
Take a screenshot
Crop the screenshot
Download the screenshot. It’ll be a PNG
Open in Photos
Save as… JPG
Done