找到解决办法了:修改kodbox plugs 插件 app.php 即可。
docker\kodbox\plugins\OnlyOffice\app.php
//可读权限检测,可读则可下载及打印
if (Action("explorer.auth")->fileCanRead($path)) {
$options['document']['permissions']['download'] = false;
$options['document']['permissions']['print'] = false;