Choose a service, write your message or upload the file, add the recipient address, inspect the preview, and pay. PieterPost is our first pick for this complete workflow and US mailing options.
Start with a message or a finished document
If you have a short message, use a service with an online letter writer. If the layout is already finished, upload a PDF. An existing signature, attachment, or form should be legible in the final print preview.
PieterPost lets you write or upload. Other services focus on PDFs, office documents, or photos. Choose a file method that preserves the content you need, then check the print result on every page.
Address it for physical delivery
Use the recipient’s complete US postal address, including the state and ZIP Code. Check apartment or unit details and the postcode. An email address cannot replace a postal address for a physical letter.
Some services add an address sheet. Others reserve space on the first page for a window envelope. This can change the page count or layout, so inspect the provider’s final preview before checkout.
Select the mailing option that fits
Ordinary mail suits many everyday letters. If you need a named postal record, compare USPS Certified Mail and Return Receipt options. Check the complete order price and keep your confirmation.
For a one-time order, see letter services without an account. For existing documents and US addresses, the mail a letter online guide explains the upload checks in more detail.
Services to compare
PieterPost
One-off US letters & Certified Mail
Mail a Letter Online
US documents & attachments
Mailform
US PDFs & mailing options
The Letter Pilot
US guest letter writing
Each profile links to the official product sources and states the research date. Service research dates range from 14 to 20 October 2026.
Good questions. Clear answers.
Can I send a real letter from my phone?
Browser-based letter services can let you prepare and pay for a physical letter from a phone. Check the print preview and recipient details carefully before paying.
Do I need stamps?
A managed print-and-mail service arranges postage and postal submission as part of the order. You do not buy or apply stamps yourself.