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How-to
How-to guides
Quick guides for preparing and mailing documents with PostalForm. These cover scanning, file prep, and common mailing steps.
Published Jan 16, 2026 • Updated Jan 21, 2026
Popular topics
- Scanning signed forms on your phone
- Combining multiple documents into one PDF
- Mailing without a printer or stamps
How it works with PostalForm
- Prepare your PDF
- Add addresses
- Checkout and we print + mail it
Articles
- How to scan a signed form and turn it into a clean PDF
- Certified Mail cost breakdown (USPS fees and total formula)
- Certified vs Registered Mail (security, speed, and cost)
- Fastest way to mail a physical letter online without a printer
- Mail a physical USPS letter from your computer without stamps or envelopes
- How to send one dispute letter to 20 addresses without printing
Ready to send it?
Upload your PDF and we will mail it.