Email signatures

Classic email signature

Set out your name, role, firm, and contact details in a calm, clear layout.

A formal law firm email signature with a burgundy seal block, fine line pattern, a pillars mark, and the partner's name and contact details.
Original1 of 6
Colours, fonts, and logo
File types
PNGJPEGWebP
Size
1000 × 360 px
Use case
Email signatures
Licence
Free to copy and use in your own templates
Source
Made by thirds.ai with the open-licence Libre Baskerville and Source Sans 3 fonts, an original graphic pillar mark, and fictional sample names.

Put your brand on every design

Three brands

Give every client this design in their own brand.

Add a client's logo, colours, and fonts in one step, and you've got a file that looks made just for them, with no new design to build.

  • A formal law firm email signature with a burgundy seal block, fine line pattern, a pillars mark, and the partner's name and contact details.
  • The Classic email signature design made for a second business, with its own details and brand.
  • The Classic email signature design made for a third business, with its own details and brand.

About this design

What you can make with it.

Law firms and accounting practices can use this quiet signature on every email. Your name sits in serif type beside a coloured side bar with your logo, above your phone, email, website, and address. Change the words, logo, and colours.

Your details

What you can change.

These are the words and numbers you swap for your own. The design stays the same.

  1. NameA short text.
  2. RoleA short text.
  3. CompanyA short text.
  4. PhoneA short text.
  5. EmailA short text.
  6. WebsiteA short text.
  7. AddressA longer text with more than one line.
  8. Rail colourA colour.
  9. Accent colourA colour.
  10. Ink colourA colour.
Sample data
{
  "name": "Eleanor Vance",
  "role": "Senior Partner",
  "company": "Vance & Holt LLP",
  "phone": "020 7946 0321",
  "email": "e.vance@vanceholt.co.uk",
  "website": "vanceholt.co.uk",
  "address": "14 Guildhall Yard\nLondon EC2V 5AE"
}

For developers

Make this file from your code or your AI tools.

Save your copy once, then send the new details with each request. Each finished file costs 1 credit.

API request
curl https://thirds.ai/v1/image \
  -H "Authorization: Bearer $THIRDS_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: classic-email-signature-1" \
  -d '{"template_id":"tpl_your_copy","version":1,"data":{"name":"Eleanor Vance","role":"Senior Partner","company":"Vance & Holt LLP","phone":"020 7946 0321","email":"e.vance@vanceholt.co.uk","website":"vanceholt.co.uk","address":"14 Guildhall Yard\nLondon EC2V 5AE"},"image":{"format":"png","width":1000,"height":360}}'
MCP call
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "render",
    "arguments": {
      "output": "png",
      "idempotency_key": "classic-email-signature-1",
      "request": {
        "template_id": "tpl_your_copy",
        "version": 1,
        "data": {
          "name": "Eleanor Vance",
          "role": "Senior Partner",
          "company": "Vance & Holt LLP",
          "phone": "020 7946 0321",
          "email": "e.vance@vanceholt.co.uk",
          "website": "vanceholt.co.uk",
          "address": "14 Guildhall Yard\nLondon EC2V 5AE"
        },
        "image": {
          "width": 1000,
          "height": 360
        }
      }
    }
  }
}

Edit this template

Open it in the editor, change anything you like, and keep it with your own templates. Your first 50 credits each month are free.