How to get Legally Binding Digital Signatures for your Invoices and Estimates


As a business owner you are well aware of the need to protect yourself and your company with legally binding contracts, and if you’re like me than you’ve done your best at getting your terms agreed and signed off before starting a project but have fallen short (more than not).

My issues were always about the process taking too long, processes that included snail mail or trying to get DocuSign to do its one job. Not having the process built into my site made me simply ignore it, considering their deposit enough, leaving me vulnerable.

Enter ApproveMe and their WP E-Signature solution:

WP E-Signature is a UETA/ESIGN compliant legally binding WordPress plugin for document signing similar to DocuSign, Hello Sign and others you already know. The difference between WP E-Signature and other document signing platforms is our sole purpose, nay our mission, which is to make it ridiculously easy for you (and your clients) to Legally sign documents using YOUR very own WordPress website (not someone else’s).

With it and the new Sprout Invoices integration add-on 1 there’s no reason to leave ourselves vulnerable to a non-legally binding contract for our projects, BIG or small.

The Legally Binding Digital Signatures utilizes the WP E-Signature Stand Alone Documents add-on, allowing for better automation in collecting signatures for your estimates and invoices. If you want to know more about the options, including those that allow for you to select a default agreement for every invoice or estimate, is found on the add-on page.

Below is an example of how the integration works:

  1. Client is shown a button that a “Signature [is] Required”.
  2. They’re redirected to an agreement where they enter their name, email, and digitally sign.
  3. After agreeing to the terms they are directed back to the invoice for payment.


Now you can see why I said “there’s no reason to leave ourselves vulnerable to a non-legally binding contract for our projects, BIG or small”, this integration is easy for you to set up and doesn’t impose a burden on your clients.

Have a closer look at the integration here and if you have any questions feel free to ask.


  1. Only available to Business license holders. If you’re currently a Business license holder and interested in this ingrain let us know via support, we will get you the add-on for free.