Is the Adobe Sign API allow to set image data when sending the agreement?

Hi Benw,

I have checked that you are using the Adobe Sign trial account. 

As you are using the trial version, it will have all the features of Enterprise account except the integration. To test the integration, you can register for the free developer edition of the Adobe Sign here https://acrobat.adobe.com/in/en/sign/developer-form.html

Make sure that you use a different email address that is not register for any other Adobe Sign account.

As you have a query related to the API integration, that can be best answered by experts. For any query, I would suggest contact the pre-sales team. They will be able to provide pre-sales technical assistance to you.

You can contact them via the details provided here https://acrobat.adobe.com/us/en/sign/pricing/plans.html

Let us know if you need any help. 

Regards,

Meenakshi