Buyer's guide
The best autopen for writing letters: what to look for.
The best autopen for letters is one that feeds itself, writes full pages with a real pen in handwriting that varies, and merges a spreadsheet into every piece. That is a different machine from the autopen that signs one document at a time. Here is how to tell them apart, and how the UniProd measures up.
Updated
The short answer
Signing is one job. Letters are another.
If you need a signature on a document, almost any autopen will do it. If you need letters, cards and envelopes by the hundred or the thousand, you need a self-feeding handwriting machine, and most autopens are not that.
The UniProd is the autopen Pen Point builds for the second job. It holds 500+ sheets or 150+ envelopes per load, writes 100–110 envelopes an hour with any real pen, carries 40+ handwriting styles with 5–15 versions of every letter, and merges your list from Excel or CSV. It is $14,995 to buy or $1,000 a month to rent, ships in 48 hours from Louisville, Kentucky, and arrives within 1 week.
500+ / 150+
sheets or envelopes per load
5–15
versions of every letter
100–110
envelopes an hour
The checklist
Seven things to check before you buy an autopen.
In the order they change the outcome. The first two decide whether a machine can do the job at all.
01
Does it feed itself?
This is the biggest difference between autopens. A hand-fed machine writes one piece, then waits for someone to load the next. A self-feeding machine takes a stack and runs on its own.
Look for the number of sheets or envelopes per load, and whether a person has to stay with it.
02
Does it write whole letters, or only signatures?
The classic autopen replicates one signature. For letters, cards and envelopes you need a machine that writes full pages of text and the address on the envelope.
Look for the largest sheet it writes and whether it handles envelopes at all.
03
Does the handwriting vary?
If every letter is drawn the same way every time, the result reads as printed. Real handwriting never repeats a letter exactly.
Look for how many versions of each letter a style carries, and whether the styles come from a real person's hand or from a typed font.
04
Can it merge your list?
A thousand notes should be a thousand different notes. The software has to take your spreadsheet and put the right name, street and line in each piece.
Look for Excel or CSV import and fields you can place anywhere in the message.
05
What pens does it take?
The pen is the point. A machine limited to its own cartridges or to one kind of marker cannot match the pen your customers would expect you to use.
Look for a holder that takes ordinary ballpoint, gel, fountain pens and markers.
06
What stock does it handle?
Note cards, letter sheets, thick stock and envelopes all behave differently. A machine built for one of them struggles with the rest.
Look for the sheet-size range, the paper weight range and whether envelopes feed from the same stack.
07
Who supports it, and what happens when it breaks?
An autopen is production equipment. Downtime costs more than the machine. Coverage, response time and where the support team sits matter as much as the specs.
Look for the length of coverage, whether accidental damage is covered, and whether support is in your time zone.
Against the checklist
How the UniProd measures up.
- Feeds itself
- 500+ sheets or 150+ envelopes per load. Runs unattended for hours.
- Whole letters and envelopes
- Sheets from 3" × 5" to 10" × 15", plus standard envelopes, from one machine.
- Handwriting that varies
- 40+ styles made with our proprietary font technology, 5–15 versions of every letter.
- Merges your list
- Excel (.xlsx) or CSV in. Fields anywhere in the message or the address.
- Any real pen
- Ballpoint, gel, fountain pen, marker or pencil. We recommend a Bic blue ballpoint.
- Stock range
- 60 to 300+ gsm. Sticky notes to cardboard.
- Pace
- 100–110 envelopes an hour on a three-line address.
- Support and coverage
- 3 years of coverage including accidental damage and replacement. Remote support from Louisville, KY.
- Availability
- In stock. Ships in 48 hours and arrives within 1 week.
Full specifications, the feeder in detail and the software behind the handwriting: the UniProd, why the feeder matters and the software.
Honest answer
When a smaller autopen is enough.
If the whole job is signing documents, certificates or the occasional card, a signature-only autopen or a desktop pen plotter does it well, and you should not pay for a feeder you will never load. We say the same on our pen plotter page and our signature machine page.
The line is volume and attention. Once someone is standing at a machine loading one piece at a time, or a mailing is big enough that the writing has to look like a person did it, you have crossed into the UniProd's territory.
What it costs
Buy it outright, or rent it by the month.
Buy
$14,995
one-time
- 3 years of coverage, including accidental damage and replacement
- 40+ handwriting styles, plus a custom font of your own handwriting
- Autograph software, updates included
- Ships in 48 hours, arrives within 1 week
Rent
$1,000
per month · unlimited volume · $1,000 setup · 3-month minimum
- The same machine, software and support owners get
- Delivered within 1 week of your signed rental agreement
- Billing starts at delivery, never before
Questions buyers ask
Autopen questions, answered.
The best autopen for letters is a self-feeding handwriting machine: it takes a stack of sheets or envelopes, writes each one with a real pen in handwriting that varies from piece to piece, and fills in names and details from your list. The UniProd is the autopen Pen Point builds for that job. It holds 500+ sheets or 150+ envelopes per load, writes 100–110 envelopes an hour, and runs unattended.
Autopen is the type of machine, not a brand. The older autopens replicate one signature. A modern autopen, also called a handwriting machine or handwriting robot, writes full letters, cards and envelopes with a real pen. The UniProd does both: it signs with your own signature and writes whole pieces.
A machine that signs one document at a time costs less than a machine that writes letters by the thousand. The UniProd is $14,995 to buy, with 3 years of coverage, 40+ handwriting styles and a custom font of your own handwriting included, or $1,000 a month to rent with unlimited volume, a $1,000 setup fee and a 3-month minimum.
A self-feeding one can. The UniProd takes 150+ envelopes per load and writes 100–110 an hour on a three-line address, then stacks them in the catch tray.
It depends on the machine. Writing that draws every letter the same way reads as printed. The UniProd writes with 5–15 versions of every letter, chosen as it goes, so the same word never comes out the same way twice. Recipients cannot tell the result from a person's handwriting.
The UniProd writes about 2 characters a second, which comes to 100–110 envelopes an hour on a three-line address. Longer pieces take longer per piece, and the machine runs unattended for hours at a time, so a run can finish without anyone standing beside it.
Yes. The UniProd rents for $1,000 a month with unlimited volume, a $1,000 setup fee and a 3-month minimum. The machine is delivered within 1 week of your signed rental agreement, and billing starts at delivery.
More on autopen machines and the full FAQ.
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