What’s always been painful about invoicing for me isn’t generating the PDF. It’s everything around it. Keeping a clean record, knowing what’s been sent, what’s been paid, what’s overdue, and remembering to follow up or handle renewals. A one off invoice creator is fine, but the real value is in the repetitive workflow and the boring bookkeeping that never goes away.

There are a bunch of solid options here depending on what you want: https://invoicely.com/ https://invoicematic.com/ https://www.invoicesimple.com/