The audit trail is an important piece of how we identify that your signer is who he/she says he is, and it's part of what makes HelloSign legal. For this reason, we cannot turn it off all together.
However, if you are a paid HelloSign Business User, you may configure your account so that the audit trail is not attached to the signed document, and is returned to you as a separate file instead. To do so:
1. Hover over your email to open the drop down menu and go to "Settings"
2. Click the "Business Features" tab
3. Scroll down to the "Preferences" section and click the "Enable" box next to the "Do not merge signed documents" option
4. Scroll to the bottom of the page and click "Save"
Now, when a document is returned to you and you download it from the documents page, the document itself and the audit trail will download as two separate PDFs.