Glad to have you here, @KMuir!
You can directly add a logo from your transaction templates. Allow me to help you accomplish this.
- Go to Lists.
- Select Templates.
- Choose a template of your transaction.
- Click Templates at the bottom of the page.
- Select Edit Template.
- Under LOGO & FONTS, select Use logo.
- Select Open or Upload.
- Click OK.
From there, you can customize your transaction templates for unique logo and content when sending transactions to your customers or vendors.
Here's an article you can read to learn more about customizing your form templates: Use and Customize Form Templates.
Please let me know if you have any other questions about your templates in QuickBooks Desktop. It'll be always my pleasure to help you out.
