Hi there, Angela. Let me share more about managing your invoices in QuickBooks Online (QBO).
The option to enlarge the customer name on the invoice is not currently available. However, I suggest providing feedback to our product developers to inform them of your request. This way, our Product Engineers can consider adding this in future updates.
Here's how:
Sign in to your QBO account.
Click the Gear icon at the top, then Feedback.
Enter your comments or product suggestions.
Press Next.
Once done, our designated team will review it. You can track your future requests through the QuickBooks Online Feature Requests website.
You can consider browsing our QuickBooks App Store to find an application that can enlarge your customer's name.