I want to create a signature field where someone draws his signature by digital pen or by finger with his touch screen. Can anyone help?
Strangely, and confusingly, a "digital signature" is a very specific thing. If the user signs with a digital pen or touch screen it cannot make a "digital signature". Digital signatures are based on certificates, and do not make any important marks on the page.
I do not need a certificate, I just want to put a signature by either by a digital pen or finger by using of the touch screen.
Is there any way to place a field for signature on the form where the user just draws his/her signature.
No. They can do that using the Pen commenting tool, though. It's not a "digital signature", though. Just a comment.