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Mail a PDF online
Mail a PDF online by uploading your document, adding addresses, and choosing USPS delivery options. PostalForm prints the PDF, envelopes it, and mails it for you.
Published Jan 11, 2026 • Updated Jan 21, 2026
How it works
Upload your PDF — Drag and drop from your computer or select from your phone
Preview the print — We show you what will be printed
Enter addresses — Sender and recipient, with validation
Choose options — Color or black & white, single or double-sided, delivery speed
Checkout — We print and mail it
Key takeaways
- Upload a single PDF (up to 100 MB and 199 pages) and we print it as-is.
- Choose color or black & white, plus single- or double-sided printing.
- Add Certified Mail for proof of delivery when you need a signature.
What kinds of PDFs people mail
Documents that need signatures
Contracts, forms, agreements. Sign them digitally or print-sign-scan, then mail the final PDF.
Legal and compliance documents
Notices, responses, filings. When email isn't acceptable and physical mail is required.
Business correspondence
Letters, invoices, statements. Sometimes paper is what the recipient expects.
Government forms
Many agencies still require paper submissions. Fill out the form, export to PDF, mail it.
Personal letters
Yes, people still send letters. Especially when it matters.
PDF requirements
- Format: PDF only (no Word docs, images, or other formats)
- Size: Up to 100 MB
- Pages: Up to 199 pages
- Page size: US Letter (8.5" × 11") recommended
If your PDF has unusual page sizes, margins may be affected. Preview before checkout.
Print options
Black & white or color
Color costs more ($0.40/page vs $0.20/page). Use it when your document has charts, photos, or branding that matters. Most text documents look fine in black & white.
Single-sided or double-sided
Double-sided (duplex) uses both sides of the paper. Good for multi-page documents, saves postage weight. Some forms specifically require single-sided printing.
Delivery options
First Class Mail (3–7 business days)
Standard delivery. Appropriate for most mailings.
Priority Mail Express (1–3 business days)
Faster, for time-sensitive documents.
Certified Mail with Electronic Return Receipt
Adds tracking and requires a signature. Available with First Class only. Learn about Certified Mail
Creating a good PDF
From Word, Google Docs, etc.
File → Save As → PDF or File → Download → PDF. This creates a clean, printable document.
From a scanned document
Use your phone's scan feature or a scanner app. Make sure:
- All text is readable
- Pages are straight (not skewed)
- Contrast is good (not too light)
- All pages are included in one PDF
Combining multiple files
If you have several documents to mail together, combine them into one PDF first. On Mac, use Preview. On Windows, use the Print to PDF function. Online tools like SmallPDF work too.
What we can't mail
- Physical items — We print PDFs. We can't include checks, photos, keys, or anything that isn't on paper.
- International addresses — Currently U.S. addresses only.
- Same-day delivery — We're not a courier. Fastest option is USPS Express.
Common mistakes to avoid
Uploading multiple files
Upload one combined PDF. If you upload separate files, they'll be separate mailings.
Low-quality scans
If we can barely read it, the recipient won't be able to either. Rescan if the preview looks bad.
Wrong address
Use the exact address from any instructions you received. Misspellings and wrong ZIP codes cause returns.
Missing pages
Check your PDF before uploading. Make sure all pages are there and in the right order.
Postage is included. Large documents (many pages) may add a flat processing fee.
Example: A 5-page black & white document costs $3.00 + (5 × $0.20) = $4.00.
Why PostalForm
USPS delivery
First Class or Express with optional Certified Mail.
Address validation
Reduce returned mail and delivery errors.
Fast checkout
Upload once and mail in minutes.
Ready to send it?
Upload your document and we'll handle printing and USPS delivery.