public function getQRCodeInlineV1($company, $holder, $secret, $size = 200, $encoding = 'utf-8')
    {
        $url = $this->getQRCodeUrl($company, $holder, $secret);

        $renderer = $this->imageBackEnd;
        $renderer->setWidth($size);
        $renderer->setHeight($size);

        $bacon = new BaconQrCodeWriter($renderer);
        $data = $bacon->writeString($url, $encoding);

        if ($this->imageBackEnd instanceof Png) {
            return 'data:image/png;base64,'.base64_encode($data);
        }
        return $data;
    }