Upload Signature Image Option is missing in Widget

Hello, Support Team

I have a problem with signature field in Adobe Widget. I want a signature field in which user can add signature text, draw signature or can upload signature.
But I can only get two option draw or write.

I am using REST API for creating the widget.

When I create an agreement then all the 4 option. I want to know why last 2 option is not for the widget.

Any help would be Appreciated

Thank You