Document download not possible

Hi,
you cannot use the _action/document/$documentId/$deepLinkCode route to receive an order document as pdf file.
The reason is that the pdf content is parsed via json_decode() here:

shopware-php-sdk/src/Service/AdminActionService.php

Line 27 in 389efca

    
           $contents = self::handleResponse($response->getBody()->getContents(), $response->getHeaders());