Hi there, @user00474. I'm glad to show you how to add a signature image to your invoices.
At this time, you can use the Attachments section to insert a signature image to your invoice. On the invoice creation screen, simply click on the Attachments box, then add your signature image from there.
Here's how:
Sign in to your QuickBooks Online (QBO) account.
Go to the +New icon, then click on Invoices.
Fill in the information, then add the signature image under Attachments.
Another option is to use a third-party tool that supports the process. You can check out one through the apps store.
For more tips while creating and personalising your invoices, you can open these articles:
I have other ways to insert a signature on your invoices. And that is to use an imported custom form style.
To do this, you would create a template through MS Word. Then, insert images including your signature from there. Before doing this, make sure the Import style feature is on.
Here's how:
On your QuickBooks Online(QBO) account, click the Gear icon.
Choose QuickBooks labs.
Scroll down, then toggle the Import Style feature to on.
If you need help making invoices for your customers after creating a template in the future, you can check this article for the steps: Create invoices in QuickBooks Online.
Let me know if you have any other questions. I'll be around to assist you further. Have a good day.