Thanks for posting your concern in the QuickBooks Community, Gordon57.
The option to add a digital signature to Donation Receipt is unavailable in QuickBooks Online (QBO). However, you can create a template through MS Word and import the invoice template by saving it in DOCX format. That way, we can customize the sales form to add two logos on it.
For the steps an details, you can check out this article: Import custom form styles for invoices or estimates. Then, you can download the EZ Map Fields Catalog to guide you on what data and codes you can add on your form.
To learn more about adding logos in QBO, you can check out this article: Add, customize, or remove logos on sales forms.
I know how beneficial it is to your business to add a digital signature to Donation Receipt. I'll personally share your feedback with our engineers regarding this one.
I've got a link here where you can find articles about managing customer transactions: https://quickbooks.intuit.com/learn-support/en-us/sales-and-customers/07?product=QuickBooks%20Online.
Keep me posted it's you need a hand with running customer's reports or any QBO related. I'm always here to ensure your success. Keep safe always.
