---
title: "Mail a letter online from your finished PDF | Postedly"
description: "Postedly prints and mails portrait US Letter PDFs to supported US addresses. Review the final proof, price, and postal estimate before approving payment."
url: "https://postedly.com/services/letters"
---

# Mail a letter online from your finished PDF

Upload the letter you want someone to open. Postedly prepares its printing and mailing, with the final document, addresses, and total for you to review before payment.

Reviewed September 20, 2026

## Availability and price

**$4.99** Available at last check

USD. Prices exclude applicable tax. Standard handwritten cards include US postage. “From” indicates a variable price. “Custom price” requires manual review of an object request. Eligibility and the final total are confirmed in your quote. [View the source catalog](https://postedly.com/api/catalog) or [read how pricing works](https://postedly.com/pricing).

## Start with a finished PDF

Use an unencrypted PDF, at most 10 MiB, with portrait US Letter pages measuring 8.5 × 11 inches. Save your final wording into the file before requesting a quote. Postedly prints the file you approve.

- A separate address page is added to letters and certified mail. Review its placement in the final proof.
- The upload system accepts PDFs with 1–50 pages, but this is not a mailing allowance. The current letter service permits at most six physical sheets including its address sheet; the selected mailing and printing options can have lower page limits.
- A document that uploads successfully can still fail the service-specific quote checks. Follow the returned page or size correction before trying again.

- [Help your assistant access the PDF](https://postedly.com/guides/ai-cant-access-pdf)

## Supported addresses

Letters, certified mail, and postcards currently require complete sender and recipient addresses in the 50 United States or Washington, DC. Include the name, street address, apartment or suite when needed, city, two-letter state, and ZIP code. International addresses and US territories are not supported by the current mail address validation.

- A connected assistant reuses its verified sender email when preparing a quote. At private review, the person paying verifies the email for receipts and access to that order; an existing verified browser session can be reused.
- Check the address in the final proof, including any postal correction returned during quoting.
- If postal verification fails, eligible mail quotes can be prepared using the exact address as entered. The private review shows the unverified address and requires your separate confirmation of the delivery risk before payment. A provider outage or missing required address fields does not qualify for this option.

## A quote for your document

The current letter service has a fixed price within its eligible document and printing limits, before applicable tax. The quote checks your actual document, including the added address page. The selected mail product determines color, sidedness, and mailing class; custom options are not automatically available.

- [Prices and what changes your quote](https://postedly.com/pricing)

## Review the exact order before payment

Review the final proof, recipient, sender, service, estimated timing, and total. Your connected account reuses its verified email; a new website session may require verification. Confirm the sending details and terms before continuing to payment. The normal website and assistant review flow uses hosted Stripe Checkout.

A draft, upload, connection, or quote does not pay or send. If the document, address, options, or price changes, request a new quote and review it again. An expired quote also needs to be replaced.

## Timing and what the status means

Printing and postal transit take several business days. Use the estimate shown in your quote; it is not a guaranteed arrival date.

Order updates can show preparation, printing, and postal progress. A sent update or estimated arrival does not necessarily confirm that the recipient received the item. Read the sending record for the evidence actually available.

- [Understand quotes, payments, and delivery status](https://postedly.com/guides/understand-order-status)

## Ready for the next step?

[Prepare a letter](https://postedly.com/send?service=letter)

## Keep going

- [Mail a PDF without a printer](https://postedly.com/guides/mail-a-pdf)
- [Have your AI assistant prepare physical mail](https://postedly.com/guides/send-physical-mail-with-ai)
- [Certified mail service](https://postedly.com/services/certified-mail)