From late November to January, most people buy more online than at any other time of year. Weeks later, they need proof of purchase: for a return, a price adjustment, a warranty claim, an expense report or a tax record. The confirmation email is somewhere in the inbox, and the order page in the shop account may have changed or disappeared. Saving a PDF at the time takes seconds and avoids the hunt.
Save the confirmation email as a PDF
On a computer, open the email and print it to PDF:
- Gmail: open the message, click the printer icon, choose Save as PDF.
- Outlook: open the message, File → Print (or Ctrl+P), choose Microsoft Print to PDF.
- Apple Mail: File → Export as PDF.
On a phone, open the email, choose Print from the share or more menu, and save the preview as a PDF. Our guide to saving an email as a PDF covers more clients.
Save the order page from the shop
The order page in your account often has more detail than the email: item numbers, delivery address, payment method. Open the order, then use the browser's Print → Save as PDF. See how to save a webpage as PDF for tips on getting clean output.
Name files so you can find them
A folder full of document(3).pdf files is no better than the inbox. Use a consistent pattern:
2026-11-27 Retailer Item Amount.pdf
For example, 2026-11-27 TechShop Headphones 89.99.pdf. Starting with the date sorts files in order, and the retailer and item make search easy.
Keep receipts with the warranty
For electronics and appliances, the receipt is your warranty proof. Save it in the same folder as the product manual and warranty terms. See how to keep warranties and product manuals as PDFs.
Combine receipts for an expense claim
If you need to submit several receipts together, merge them into one PDF in date order. Docento.app can merge PDFs in the browser without uploading them, which matters for receipts that show card details and addresses. For a full expense workflow, see organizing expense receipts as PDFs.
Watch out for fake receipts
If you receive receipts from others, for reimbursement or refunds, be aware that AI tools now make convincing fake receipts easy to produce. See how to spot AI-generated fake receipts.
Mind what a receipt reveals
Order confirmations often include your address, phone number, partial card number and order history. If you share one, for example with a manufacturer for a warranty claim, consider redacting details they do not need. See how to redact text in a PDF.
Takeaway
Print the confirmation email or order page to PDF the day you order, name it with the date, retailer and item, and keep it with the product's warranty documents. It takes ten seconds and saves a lot of searching in January.
