Add a maximum image resolution?

Yes, I will add such processing for images that are corrected by this module.

But always checking all images, loading them to get the real resolution will be too resource-intensive task and is far beyond the scope of what this module works with.

So if you want to have such processing for all images, I think you should look for a solution elsewhere.

I understand, thank you. I will also try to find another solution. Anyway, thank you, it was a big problem when users insert an image via a link, and then it is deleted and the site has a bunch of empty squares instead of images. A very useful module!