How to Send a PDF Invoice from Your iPhone

Why a PDF is the right format for an invoice

A PDF fixes the layout of your invoice. The heading, line items, subtotal, total, dates, and payment instructions stay exactly where you put them, whether the client opens the file on a laptop, a tablet, or a phone. That matters because an invoice typed directly into an email body can reflow, a screenshot can look improvised, and a spreadsheet file may not open the way you expect on the client's device. A PDF also creates a stable record: the version you sent is the version they received. Invoice Maker is an iPhone app that creates and shares PDFs, converts estimates to invoices, tracks paid and unpaid status, saves clients and products, supports templates and reports, and stores data on the device without a login. You build the invoice on your phone, generate the PDF, and hand it to whichever app you use to deliver it.

PDF invoice

An invoice saved in PDF format so the layout, totals, and wording are fixed and display consistently no matter what device or app the client uses to open it.

What to have ready before you send

Most invoice problems happen before the send button, not after. Spend two minutes gathering the details so you do not have to send a correction later.

• The client's business name and the billing email address they actually use for invoices.
• Line items with clear descriptions, quantities, and rates, matching what was agreed.
• An invoice date and a due date that reflect your agreed payment terms.
• Payment instructions: how you accept payment and what reference the client should include.
• Any deposit or partial payment already received, shown clearly as a credit or deduction.
• Your own business details as required where you operate.

Step-by-step: create and send the PDF on iPhone

1. Create or open the invoice — Start a new invoice in Invoice Maker, or convert an approved estimate so the client and line items carry over without retyping.
2. Add the client — Choose a saved client or enter the details once. Saving the client keeps the billing name and address ready for next time.
3. Fill in the line items — Pull in saved products or services, set quantities and rates, and check that the total matches the work you delivered.
4. Set the dates and terms — Enter the invoice date and a due date consistent with the terms you agreed. Add a short note if anything needs explaining.
5. Add payment instructions — State how you accept payment and any reference number you use, so the client does not have to ask.
6. Preview the PDF — Read it as the client would. Look for cut-off text, a wrong total, or a client name spelled incorrectly.
7. Share the file — Tap share and choose an app. Add a brief covering message with the invoice number, amount, and due date.
8. Leave it tracked as unpaid — The invoice stays in your unpaid list until you record the payment, so you always know what is still outstanding.

Which delivery method should you use?

Invoice Maker hands the PDF to your iPhone's share options, so the delivery choice is yours. Think about what creates the cleanest record and the fewest excuses.

Email remains the default for most freelancers because it leaves both sides a timestamped copy. If you switch to a chat app for speed, send a follow-up confirmation so the PDF is easy to find later.

A five-point check before you tap send

1. Is the client name and billing email correct, including any company entity they invoice under?
2. Do the line items match the work delivered, with no leftover rows from a previous job?
3. Are the invoice date and due date right, and consistent with your agreed terms?
4. Are the payment instructions complete and easy to follow?
5. Does the PDF open cleanly, with a visible total that matches your own calculation?

If you send invoices from a saved template, the check takes under a minute. If you build each invoice from scratch, the check is where you catch the errors that cost you a week of back-and-forth.

After sending: track it as paid or unpaid

Sending the PDF is the middle of the job, not the end. Use invoice tracking to keep a live list of what is outstanding, what is overdue, and what has been paid. When money arrives, open the invoice and mark it paid; if only part of it arrives, note the partial payment and the remaining balance. Because Invoice Maker keeps everything on your device, you can check the list in a queue or between client calls. If a due date passes, follow up with the same PDF attached rather than describing the invoice again in the body of an email. A short, polite reminder that includes the invoice number, amount, and due date is usually enough, and your notes stay in one place.

Make the next invoice faster

The quickest invoices are the ones you barely have to build. Start from a saved invoice template so the layout, headings, and notes are already in place, then swap in this month's line items. Save repeat clients and standard services in clients and products so names, rates, and descriptions fill in with a tap. If the work began as an estimate, build it in Estimate Maker first and convert it once the client approves, which keeps the approved scope and the billed amount identical. And when you want a general walkthrough of the whole flow, the guide on how to make an invoice covers the basics from client details to final PDF.

Common mistakes when sending invoice PDFs

• Sending to an old billing address because the client changed accountants or contacts.
• Forgetting to update the invoice and due dates after copying a previous invoice.
• Leaving a line item from an earlier job on the document.
• Writing payment instructions that are vague enough to delay the payment.
• Assuming the app will collect the money; it will not, so record payments yourself.
• Failing to keep the sent PDF, which makes later questions harder to answer.