how do you make a fill-able form non editable after distribution

Hello,

I am new to Adobe development. I have a requirement for a fill-able form. There is a Send Email Button at the bottom.

Once user fills the form and clicks the send email button it will be dispatched to the email recipients mentioned in the Email Address column.

The main requirement is - The recipients should not see (invisible) the Send Email Button at the bottom.

And

All the fields should be protected.

Any help is appreciated.

Thanks

Satya