A Penned branded card and a handwritten note with a fountain pen and wax seal on purple velvet

UK's handwritten letter service, at scale

Make every word count.

Cut through digital noise.
Real pen on real paper, real handwriting styles,
written by robots.

You type. We write.
Write your sample message

Why handwritten mail works

99%

of handwritten mail is opened

20%

average email open rate

5×

the response rate of email

How it works

As easy as an email

Type it once. We handle printing, handwriting and posting — on demand or in bulk.

  1. 01

    Upload your stationery

    Upload your design or ask us for assistance.

  2. 02

    Write your message

    Type once. Personalise with names, codes and dates using merge fields.

  3. 03

    Choose recipients

    One letter or thousands — upload a list or connect via an API.

  4. 04

    We write & post

    Our robots pen it with real ink on real paper, with real handwriting styles, posted on your behalf or to you!

Penned branded cards and a handwritten note on premium paper
Real handwriting

You type, we write.

Slide from a typed message to a genuinely handwritten note — dial in the character from neat to expressive, then flick through the styles.

Typed
Dear Sarah, Thank you for being part of our story this year - it means more than you know. With warmth, The Penned Team
The message, handwritten in a neat hand
The message, handwritten with natural imperfection
The message, handwritten with expressive imperfection
Typed Neat hand Natural Expressive
Imperfection: none

Every letter, one of one. Our engine varies baseline, kerning, letter size and slant as it writes — so no two letters, or even two of the same letter, are ever identical. Choose anywhere from none through to expressive imperfection to match your brand's voice.

Over 100 styles

One message, many hands.

The very same note, written in a different hand. Flick through a selection below — then imagine yours, matched to your brand. We have over a hundred more.

Style 1
The message written in handwriting Style 1
The technology

Complete control, every letter.

Shape a handwriting brand that's unmistakably yours — right down to the imperfections.

Control the defects

From none and minimal through to extreme, you decide exactly how much natural imperfection appears — dialling your handwriting brand in precisely.

Every letter is unique

Our advanced engine varies kerning, line spacing and character shapes as it writes — so no two letters, or even two of the same letter, are ever identical.

Genuinely handwritten

Real pen on real paper with lifelike variation throughout, so every line reads as written by hand — never printed.

Products

A product for every message.

Penned offers a range of standard products — and we work to your needs. We're as flexible as we can be, as long as it can be written on.

A4 Letter

Full-page letters

210 × 297 mm

approx. 700–900 characters

A5 Note & Card

A generous note

148 × 210 mm

approx. 350–450 characters

A6 Card

A pocket card

105 × 148 mm

approx. 150–250 characters

DL Compliment Slip

A short slip

210 × 99 mm

approx. 200–300 characters

Handwritten Envelope

Written & sealed

DL · C5 · C6 · bespoke

Recipient name & address

Bespoke

If it can be written on, we can do it

Any size or format

Tell us what you need

Character counts are a guide only — actual capacity varies with the handwriting style, spacing and formatting you choose.

A custom gold wax seal made from the Penned logo, shown with its laser-engraved die

Custom wax seals

Your logo or design in a custom wax seal — really sealed, not glued on.

Learn more →

Inserts & items

Add flyers, inserts or a small item alongside your letter.

Real postage

Postage is never charged at a premium. Real stamps, really put on.

Premium paper

120gsm laid. Felt, not just read.

Choose textured laid stock for A4 letterheads and A6 cards — the weight and grain do quiet, expensive work the moment your letter is picked up. We can use a range of stocks to suit your brand and preference.

Personalised means personalised

Every letter, one of one.

Merge in first names, unique coupon codes, renewal dates — anything in your data. Each letter is generated individually, with natural variation so no two look alike.

Your template

Dear {{first_name}},
Happy birthday for the 14th of June!
Here's a little gift of {{coupon}} off to celebrate, with our thanks for a truly wonderful year.
Best wishes,
Team Acme

Becomes, on paper

Your brand

Your letterhead. Your card. Your message.

We write on your own branded stationery, or print your design onto premium stock for you. Add inserts, a flyer or a wax seal — we can be as bespoke as you need. Whatever arrives stays unmistakably yours.

  • Use your own stationery, or we print your design
  • Add inserts, flyers or a wax seal
  • Bespoke formats and finishes to match your brand
A Penned branded card and a handwritten note with a wax seal on a navy background
Your design, penned.
Integrations

Automate your campaigns.

Connect Penned to your stack with our REST API or via Zapier. Trigger handwritten letters on demand or in bulk, and let us do the writing. Need something more? We support custom and bespoke solutions.

REST API

A clean REST API to trigger and manage handwritten letters directly from your own systems.

Zapier

Connect thousands of apps with Zapier and automate your campaigns — no code required.

Custom & bespoke

Something more specific? We'll build a bespoke integration around your workflow.

Testimonials

Trusted by the teams who send with us.

From D2C brands to agencies — here's what it's like to put real handwritten mail to work with Penned.

Verafind logo Verafind™
“With Penned, we got more than a service, we got a team obsessed with getting it right. It feels like we have an extra person on the team.”

Daniel Robinson

Managing Director, Verafind

“Working with Penned has made our D2C voucher generation & delivery an incredibly smooth process. The API integration made it extremely easy for us to plug & play.”

Joanna Brown

Chief Operating Officer, Urban

UKL logo
“We've worked with Penned on a couple of projects now, and they've been fantastic every time. We'd recommend them without hesitation.”

Jodie Tourell

Marketing Executive, UKL

See it for yourself.

Request a free sample pack — an A4 letter, an A6 card and a note, complete with a wax seal.

Request a sample pack

Or talk to us: [email protected] · 0333 090 9406