Use the signatureId value received through SMARTTERMINAL_REQUEST Webhook to Get the signature image captured by Smart Terminal. Image is in PNG format.
Example Request
curl -X GET -u "login:password" -H "Accept: image/png" -H "X-PJ-Application-Key: YOUR_PRODUCTION_APP_KEY" \
"https://api.payjunction.com/smartterminals/signatures/2f0bfa2c56894a398af741f3ecfc115e/image" > signature.png