Requirement to sign the document on behalf of customer and auto send the email

Hello Team,

I am a developer and trying to integrate Adobe with our Sales Journey. Our requriennt is once the user is on our journey and selects a waiver form as true, we have atemplate and we will be sending the template, sign and  email id through APi to adobe. We are expecting adobe should read the teamplate and create a document and sign it and email the document to the requested email id's. Could you let me know for any api documentation to achive this fuctionality.