I’ll make this quick. If you are inserting images, you probably will want then to be ‘full’ size. WordPress, by default, will add them as ‘large’. You can change this default behavior without any coding.

/wp-admin is the back-end URL of your WordPress. If you add /wp-admin/options.php to that URL, you will get additional options from the Wp_options table. Once of those options is —

‘image_default_size’ and it will most likely be blank. Go ahead and put ‘full’ in that bad boy and you by default, when you add an image, it will be ‘full’ size.

Awesome.