When a fillable form gets posted to a web server either as an EMAIL/PDF/XML/XDP, is there a way the server can verify its authenticity of the submitted content.
I dont want the situation where users are submitting altered content or malformed content.
I essentially want to do something like this and am wondering it is possible.
1. sign the PDF
2. all submitted content will contain a hash of the signature which I can then verify on server side to make sure it originated from the same fillable PDF form.
Thanks
