How to prevent manual data import with dynamic forms?

Hi,

I have a dynamic template which is rendered and filled with data on a server. The only dynamic part which can be used by the user is are tables which might be expanded.

Now I have the issue that when rendered as dynamic form the user has the abililty to import any XML file into the finished document when opened in Adobe Acrobat Reader (Forms --> Manage Form Data --> Import Data).

Can I somehow prevent this? Is it maybe a server render setting or a forms propertie which I did not find yet? Or can I prevent it via Javascript somehow? Any suggestions?

thx in advance