I want to integrate wacom digital signature with tablet, Just like ria or western Union. I see that there are different way to accomplish this. With sdk or sign pro pdf api . Can someone please explain the difference? With api based solution, after signed the document, signed pdf status will sent by push notifications so that we can download the signed pdf ? Sdk based solution will be faster ? Also sdk based solution doesn’t need to use any external software like sign pro pdf that i have seen on ria . I am confused. Please someone help me to decide. Thanks in advance.
Nb. For commercial use do i need to buy sdk license?