International mailing guide
How to mail a letter in the United States online
Upload a PDF and mail a physical letter to an address in the United States without printing, buying stamps, or visiting a post office. PostalForm shows the eligible carrier services and price before checkout.
Published Jul 17, 2026
Have the PDF ready?
Upload your finished PDF here. Next, add the sender address and recipient address in the United States, review the available delivery options and exact price, and pay only after review.
Fast answer
To mail a letter online to the United States, upload the finished PDF, enter the sender address and the recipient's address in the United States, and review the printable document. PostalForm checks the destination, page count, file size, and selected services before showing the final price. Nothing is mailed until you approve and pay for the order.
Carrier and local delivery in the United States
PostalForm routes eligible domestic letters through its US print-and-mail network. Final delivery is handled by the United States Postal Service (USPS). The checkout result is authoritative because eligibility can depend on the document and addresses.
Available mailing options
- Standard mail for ordinary letters.
- Expedited mail when the entered addresses and document qualify.
- USPS Certified Mail when you need proof of mailing and delivery history. An electronic return receipt can be added when eligible.
- Signature service is available with eligible expedited US orders.
Certified Mail is a proof service, so it cannot be combined with expedited delivery in the same order.
How to mail your letter online
- Prepare the final letter as one PDF, including signatures and attachments.
- Upload the PDF using the file selector on this page.
- Enter the recipient's complete mailing address in the United States and your return address.
- Review the rendered pages, print settings, available delivery services, and exact price.
- Pay only after the address, document, and mailing option are correct. PostalForm then prints, envelopes, posts, and tracks the production handoff.
Address and document requirements
Use a complete USPS-format address with the recipient name, street address, city, two-letter state code, and ZIP Code. Upload one final PDF with all pages in the correct order. The checkout validator will flag unsupported page sizes, excessive page counts, or address problems before payment.
Pricing and delivery estimates
The price depends on the PDF page count, color or black-and-white printing, single- or double-sided printing, destination, and selected delivery or proof service. PostalForm shows the exact price and an estimated delivery window before payment. Carrier dates are estimates rather than guarantees, and registered or certified proof services cannot be combined with expedited delivery.
Sources
Carrier and service descriptions are based on the USPS Certified Mail overview and PostalForm's currently configured provider routes. Available options are confirmed for the individual order at checkout.
What you get
- • PDF upload from desktop or phone
- • Destination-aware address validation
- • Local carrier routing for the United States
- • Price and delivery estimate before payment
FAQs
- Can I mail a letter to the United States without a printer?
- Yes. Upload the completed PDF and PostalForm handles printing, the envelope, postage, and carrier handoff.
- Which carrier delivers PostalForm letters in the United States?
- Final delivery is performed by USPS. PostalForm may select among its configured US production partners before USPS acceptance.
- Can I use expedited or registered mail to the United States?
- Eligible US orders can use expedited delivery or USPS Certified Mail. Certified Mail may include an electronic return receipt, while eligible expedited orders may offer signature service. Proof and expedited services cannot be combined.
- Will I see the price before the letter is mailed?
- Yes. PostalForm validates the document and addresses, then shows the eligible mailing options and exact order price before payment.
Ready to send it?
Upload your finished PDF here. Next, add the sender address and recipient address in the United States, review the available delivery options and exact price, and pay only after review.