With OneSpan Sign, you have the ability to request attachments after your signer(s) signed your document(s).
After the requested attachments have been provided, you will have the option of accepting or rejecting the attachment. In the event of a refusal, you will be able to provide feedback in the form of a short message and the signer will have the opportunity to upload a different file.
Kindly check our Attachment Requirements guide for more information. And below is a code snippet for building your package in Java SDK:
.withDescription("Please upload a copy of your driver’s license.")