This document provides an installation and customization guide for Adobe EchoSign for Salesforce v12. It outlines the steps to install EchoSign from the AppExchange, complete basic setup, and customize settings and features. Basic customization includes adding the EchoSign agreements list to Salesforce page layouts and selecting the EchoSign agreements page style. Advanced features covered include sending agreements, using EchoSign forms, configuring hosted signing, mapping data between EchoSign and Salesforce, and customizing settings.