Server Side Signing API

Build a seamless signing experience, developer-friendly API fits into your document workflow.Our API based signing application which takes unsigned PDF string as input and outputs the signed PDF string. Our signer application will be hosted as a webservice and supports digital signature certificates stored on HSM. Our application should be provided with PKCS11 configuration of the HSM.  It can be either hard coded or one of the parameter passed to the exposed method.

The third party application which integrates the webservice has to pass the following details to Signer Api method call


  • Input path (local or http URL)
  • Action type
  • Unique ID of the signer
  • HSM credentials
  • Coordinates to place the signature
  • Image to be stamped (optional)
  • Password to encrypt PDF (optional)
  • Reason and location of the signatory (optional)