WordPress - Disable image full size option

Question

Is there any way in Wordpress to prevent content editors from selecting the "Full size" option when inserting images to a post? I've already tried Wordpress Prevent Users from posting full size image uploads but one this doesn't seem to be working (last active in 2010).

Answer 1

Incase you don't want hardcoded sizes, try this in your functions.php:

add_filter('image_size_names_choose', function($sizes)
{
    unset($sizes['full']);
    return $sizes;
});

References:

• image_size_input_field()
• media-template.php#L934