The global labels, Download and Downloads, used throughout Easy Digital Downloads are extremely easy to change. Just use the simple filter function shown below:
function pw_edd_product_labels( $labels ) {
$labels = array(
'singular' => __('Product', 'your-domain'),
'plural' => __('Products', 'your-domain')
);
return $labels;
}
add_filter('edd_default_downloads_name', 'pw_edd_product_labels');
If you need complete control over each of the labels used for the custom post type, then read
this doc.
