You can change the logo which will be displayed on invoice as well as automated emails.
To change the logo follow the steps below.
Step 1: Login to Zepo Dashboard.
Step 2: Go to Manage>Content > Store Information
Step 3: Select the logo file in Your Store's Logo Section.
Note: Logo should be of 200px X 100px in dimensions and only in .JPG or .PNG format only.
Step 4: Scroll to the bottom of the page and click save & update button to save the changes.