Hi PMoore1,
I appreciate you reaching out with such valuable feedback. I'd be glad to share more information about downloading PDFs in QuickBooks.
QuickBooks makes it easy for you to manage your invoices as you can easily edit and download them. Based on what you've described, you'd have to manually edit the invoice name when you're downloading it. There's isn't an interface which allows you to edit your invoice PDF name when downloading the invoice except outside of the program. In the meantime, you can edit the invoice template by following this helpful article here: Customize invoices, estimates, and sales receipts in QuickBooks Online. The article goes over all the info you need to know when customizing how your invoice looks to you and your customers.
I recommend sending this as feedback to our engineers because what you've described is time-saving feature that'll help busy business owners like you streamline their work. To send feedback, click on the Gear icon and look for Feedback. If you have any questions or concerns, don't hesitate to reach back to me in the comments below. I'll be here. :)
