SyamilMJ saidIt does that, and more. Like scanning a post for images.
If I’m correct, the get-the-image plugin does not resize the images.
Can you please point it in the code? I only saw this (line 420):
$html = '<img src="' . $image['src'] . '" alt="' . esc_attr( strip_tags( $image_alt ) ) . '" class="' . esc_attr( $class ) . '" .="" />';
@OriginalEXE – Aqua Resizer is 100% WP native.