---
title: Mail a letter online in minutes
description: PostalForm turns a PDF into a mailed letter. Upload your document, confirm sender and recipient addresses, and we print and mail it for you. We prepare the envelope, postage, and carrier handoff.
seotitle: Mail a letter online in minutes | PostalForm
seo-description: Upload a PDF, confirm addresses, and PostalForm prints and mails it for you. We prepare the envelope, postage, and carrier handoff.
group: company
indexable: true
nav: true
nav-order: 1
schema: software
eyebrow: PostalForm
published: 2026-01-15T12:29:58-06:00
updated: 2026-03-30
path: /
---
# Mail a letter online in minutes

PostalForm turns a PDF into a mailed letter. Upload your document, confirm sender and recipient addresses, and we print and mail it for you. We prepare the envelope, postage, and carrier handoff.

## How it works
1. **Upload your PDF** - drag in a file from desktop or phone.
2. **Confirm addresses** - use smart address suggestions to avoid returns.
3. **Choose delivery options** - First Class or Express, plus Certified Mail (First Class only) when needed.
4. **Checkout and track** - pay securely and follow order, mail-status, and available tracking updates.


## Feature list
- Printing on US letter paper with color and double-sided options.
- Postage, envelope prep, and address verification.
- Express delivery (1-3 business days) available at checkout.
- Certified Mail (First Class only) with USPS tracking and optional electronic return receipt.
- Fast checkout plus order, mail-status, and available tracking updates.


## Which mailing option and proof should you choose?
PostalForm offers U.S. letter mailing with different delivery and proof options. First-Class suits routine correspondence; Certified Mail adds mailing and delivery records, and Electronic Return Receipt adds a downloadable signature record. Expedited delivery prioritizes speed. Review the destination, estimated dates, total price, and required proof before paying.

| Mailing option | Delivery speed | Proof | Use when | Avoid when |
| --- | --- | --- | --- | --- |
| USPS First-Class Mail | First-Class Mail delivery estimate shown before payment. | Available processing scans; no recipient signature or Certified Mail receipt. | Routine letters when a signed delivery record is unnecessary. | Your instructions require Certified Mail, a signature, or a deadline this estimate cannot meet. |
| Certified Mail | First-Class delivery speed; certification does not make delivery faster. | USPS mailing and delivery/attempt tracking; no Electronic Return Receipt unless added. | You need a recorded mailing and delivery or attempted-delivery status. | You need a downloadable signature record or faster delivery. |
| Certified Mail + Electronic Return Receipt | First-Class delivery speed; signature collection may require redelivery or pickup. | Certified Mail records plus a downloadable USPS signature record when available. | Your instructions call for Certified Mail with Return Receipt or you need the signature record. | Your recipient requires an original enclosure, personal service, or another submission method. |
| Expedited / Express with signature | Faster estimated delivery range shown at checkout; production cutoff and destination apply. | Carrier tracking and signature option; this is separate from Certified Mail and ERR. | Speed and signature matter and checkout offers the service for your destination. | A rule specifically requires Certified Mail or the displayed estimate misses your deadline. |

Availability and delivery estimates depend on the document and destination. Mailing proof does not establish that a recipient accepted a filing or that legal service requirements were met. [Review delivery estimates](/delivery-times) and [full pricing](/pricing).


## Resources
- [Mail documents online](/mail-pdf-online)
- [Mail a PDF online](/mail-pdf-online)
- [Send a letter online](/send-letter-online)
- [Pricing](/pricing)
- [Delivery times](/delivery-times)
- [Certified Mail online](/certified-mail-online)
- [Browse form workflows](/forms)
- [Pricing calculator](/pricing-calculator)
- [Developer and AI-agent mail API](/developers)
- [AI agent guide](/agents)


## Ready to send it?
Upload your PDF and we will print and mail it for you. We prepare the envelope, postage, and carrier handoff.

[Send a letter now](/)