是的，有。

在此处找到：
http://www.wprecipes.com/how-to-automatically-use-resized-image-instead-of-originals

它将用large 大小，在介质设置中定义(/wp-admin/options-media.php).

代码如下：

add_filter(\'wp_generate_attachment_metadata\',\'replace_uploaded_image\');

function replace_uploaded_image($image_data) 
{
    // if there is no large image : return
    if ( !isset($image_data[\'sizes\'][\'large\']) ) 
        return $image_data;

    // paths to the uploaded image and the large image
    $upload_dir              = wp_upload_dir();
    $uploaded_image_location = $upload_dir[\'basedir\'] . \'/\' . $image_data[\'file\'];
    $large_image_location    = $upload_dir[\'path\'] . \'/\' . $image_data[\'sizes\'][\'large\'][\'file\'];

    // delete the uploaded image
    unlink($uploaded_image_location);

    // rename the large image
    rename($large_image_location, $uploaded_image_location);

    // update image metadata and return them
    $image_data[\'width\']  = $image_data[\'sizes\'][\'large\'][\'width\'];
    $image_data[\'height\'] = $image_data[\'sizes\'][\'large\'][\'height\'];
    unset($image_data[\'sizes\'][\'large\']);

    return $image_data;
}

add_image_size( \'new-large\', 1600, 1200 );