Through the media area of Wordpress, you can add images.
The problem is that the client does not know how to crop images using an editing program such as Photoshop , so it uses the crop Wordpress :
While generating crop , the original image is retained, which is a problem since these images usually have more than 5MB.
How to delete the original image after cropping the image?
One possible way is to use the action wp_ajax_crop_image_pre_save to replace the original image with the cropped image, something like this:
add_action( 'wp_ajax_crop_image_pre_save', 'sobrescrever_imagem', 10, 3 );
/*
* Busca a imagem original e substitui pela imagem recortada.
* atualizando os meta-dados
*/
function sobrescrever_imagem( $context, $attachment_id, $cropped ) {
// Busca os metadados originais
// https://developer.wordpress.org/reference/functions/wp_get_attachment_metadata/
$orig_data = wp_get_attachment_metadata( $attachment_id );
$orig_data['file'] = $cropped;
// Gera novamente os metadados
// https://developer.wordpress.org/reference/functions/wp_generate_attachment_metadata/
$updated_data = wp_generate_attachment_metadata( $attachment_id, $cropped );
// Salva no attachment original
// https://developer.wordpress.org/reference/functions/wp_update_attachment_metadata/
if ( wp_update_attachment_metadata( $attachment_id, $updated_data ) ) {
// Deleta o original
$orig_file = $orig_data['file'];
unlink( $orig_file );
}
}
This code has not been tested , it's just a way to get started. There are a thousand things that can go wrong in the middle, because media in WP is really complicated.