I just purchased Adobe Pro 2 days ago, in order to collect e signatures from clients.
However, I could not send it out as Adobe says "This is a secured file that can't not be signed.
That was fillable PDF file form from a large insurance company that we use those at a daily basis.
Before I came to Adobe, I've using Docusign for two years, never had any issue. I then used Docusign instead, it worked perfect no issue at all.
I contact Adobe customer, they could not solve this issue, they told me I need to flatten the file ( to print this form to be a PDF to get ride of those security stuff) then it's good to send out to sign.
I don't know what is a secured file, those forms are meant to be signed, and we have been doing it for a couple years with Docusign. Since Adobe can't do the same job, in stead of wasting time to flatten the file every time, I hope your technical support can improve it.