If you already have a paid HelloSign account your company would need to have a HelloSign Enterprise plan with Salesforce enabled. This plan is available by contacting HelloSign Sales.
Already have a free HelloSign account? If you have a Free HelloSign account you can install HelloSign for Salesforce and when you Connect you will automatically be enrolled you in our free, 30-day HelloSign for Salesforce Trial.
Don't have a HelloSign account? You can still try out HelloSign for Salesforce for free! Just create a new HelloSign account for free at HelloSign.com, and confirm your account via the email we will send. Once that is done, just install and Connect as mentioned above.
For a full instructions on how to install and use the integration please check out our Admin Guide.