أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Without a server or a storage media how can you store a large amount of data in PDF for finance Dept.
So it is better you have server to implement paper-less policy.
Probably it's possible to implement a paper-less policy without a server, but there should be a central storage kept secure to archive all the data.