}
        }
        return embeddedFile;
    }

    protected void extractMetadata(final PDDocument document, final ExtractData extractData) {
        final PDDocumentInformation info = document.getDocumentInformation();
        if (info == null) {
            return;
        }

        for (final String key : info.getMetadataKeys()) {
            final String value = info.getCustomMetadataValue(key);