Portrait course certificate
Give each learner a named PDF certificate for finishing a course.

- File types
- Size
- A4 PDF
- Use case
- Certificates
- Licence
- Free to copy and use in your own templates
- Source
- Made by thirds.ai with the open-licence Playfair Display and Instrument Sans fonts, original graphic marks, and fictional sample names.
- Free tool
- Free certificate generator
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.
About this design
What you can make with it.
When a learner finishes your course, send them this portrait certificate. Their name sits large in the middle under the course title, with your name and the date at the foot. Type a new name and course each time.
Your details
What you can change.
These are the words and numbers you swap for your own. The design stays the same.
- IssuerA short text.
- LearnerA short text.
- CourseA short text.
- DateA short text.
{
"issuer": "Chalkline Learning",
"learner": "Alexandra Morgan",
"course": "Clear Project Plans for Small Teams",
"date": "14 September 2026"
}For developers
Make this file from your code or your AI tools.
Save your design once, then your code or AI tool sends the details and gets the finished file back. Each one costs 1 credit.
curl https://thirds.ai/v1/pdf \
-H "Authorization: Bearer $THIRDS_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: completion-certificate-1" \
-d '{"template_id":"tpl_your_copy","version":1,"data":{"issuer":"Chalkline Learning","learner":"Alexandra Morgan","course":"Clear Project Plans for Small Teams","date":"14 September 2026"}}'{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "render",
"arguments": {
"output": "pdf",
"idempotency_key": "completion-certificate-1",
"request": {
"template_id": "tpl_your_copy",
"version": 1,
"data": {
"issuer": "Chalkline Learning",
"learner": "Alexandra Morgan",
"course": "Clear Project Plans for Small Teams",
"date": "14 September 2026"
}
}
}
}
}Edit this template
Open it in the editor, put your brand on it, and keep it with your own templates. Your first 50 credits each month are free.





