Certificate PDF Generation
Automate certificate creation for courses, awards, and credentials. Generate beautiful landscape or portrait PDFs with recipient details, unique IDs, and your brand — all via API.
Generate a certificate in seconds
Pass recipient details and course info. Get a professionally formatted certificate PDF back.
import Rendoc from "rendoc";
const rendoc = new Rendoc("your_api_key");
const pdf = await rendoc.documents.generate({
template_id: "tpl_certificate_001",
data: {
recipient_name: "Alex Johnson",
course_name: "Advanced TypeScript",
completion_date: "March 25, 2026",
instructor: "Dr. Sarah Chen",
certificate_id: "CERT-TS-2026-1847",
hours: 40,
grade: "With Distinction",
},
options: {
paper_size: "A4",
orientation: "landscape",
},
});curl -X POST https://rendoc.dev/api/v1/documents/generate \
-H "Authorization: Bearer your_api_key" \
-H "Content-Type: application/json" \
-d '{
"template_id": "tpl_certificate_001",
"data": {
"recipient_name": "Alex Johnson",
"course_name": "Advanced TypeScript",
"completion_date": "March 25, 2026",
"certificate_id": "CERT-TS-2026-1847",
"hours": 40,
"grade": "With Distinction"
},
"options": { "paper_size": "A4", "orientation": "landscape" }
}'Why developers choose rendoc for certificates
Landscape & portrait
Certificates often look best in landscape. Set orientation per request — no separate template needed.
Unique certificate IDs
Embed verifiable IDs in each certificate. Recipients can validate authenticity via your verification page.
Batch generation
Course completed by 500 students? Generate all certificates in one API call with an array of recipients.
Custom paper sizes
Standard A4, Letter, or custom dimensions. Match the exact format your printing service expects.
Rich templates
Borders, seals, signatures, watermarks — your HTML/CSS template controls every pixel of the design.
Instant delivery
Generate and email certificates immediately after course completion. Webhook triggers make it automatic.
Automate your certificates today
100 documents per month free. Perfect for online courses, training programs, and award ceremonies.