As VIDsigner is a Rest API service, there is no SDK as such to deliver. But we do have examples of API v2.2 integration with other languages that will help you.
The JSON integration model is available via the following link:
* In this model you will find a Postman library with examples for sending documents with BIO, REMOTE, CENTRALIZED, and STAMP. You can also download a Postman manual via this link.