I m building Create Instant Invoice for freelancers and tradespeople who need a quick invoice without an account. Two early testers especially liked saving the invoice as an image to send from their phones. Would you use that, or do you prefer a PDF? You can try a sample invoice at https://createinstantinvoice.com/ it s free, with no signup or watermark. I d appreciate honest feedback on the mobile editor, the exported invoice and anything that feels confusing. I m the maker, so useful criticism is welcome.