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Certificate Generator with QR Code Verification

Objective

To design a secure and automated platform that allows institutions or organizers to generate digital certificates for participants, each embedded with a unique QR code that links to an online verification system. This ensures authenticity and prevents certificate forgery.

Key Features

Admin Panel

Admin login and authentication system.
Create customizable certificate templates.
Upload participant details via form or CSV.
Auto-generate certificates with:
- Participant name
- Event/course title
- Issue date
- Unique Certificate ID
Embed a QR code linking to the certificate verification page.
Email certificates directly to recipients.

QR Code Verification

QR code redirects to a secure verification page.
Displays certificate details:
- Name
- Event/Course
- Date of Issue
- Status: Valid or Revoked
Users can view and download the original certificate.
Invalid QR codes or revoked certificates show an “Invalid” message.

Security Features

Unique certificate ID with encrypted/hashed links.
Admin panel to revoke certificates anytime.
Optional: Audit logs and issue tracking.
Data privacy and protection for all users.

Tech Stack

Component	Technology
Frontend	HTML, CSS, Bootstrap, JavaScript, React (optional)
Backend	Node.js + Express / Django / Spring Boot
Database	MongoDB / MySQL / PostgreSQL
QR Code Gen	`qrcode` (Node), `python-qrcode`, `qrcode.react`
PDF Generator	jsPDF / HTML2PDF / iText / ReportLab
Email Sender	Nodemailer / JavaMail / SMTP / SendGrid
Hosting	Heroku / Railway / AWS / Firebase

Workflow

Admin Login
- Secure authentication using credentials.
- Access to dashboard showing all past certificate batches.
Upload Participant Data
- Input via form or upload a CSV file containing:
  - Name
  - Email
  - Course/Event name
  - Date
Generate Certificates
- Admin selects a pre-designed certificate template.
- System auto-generates a PDF for each participant.
- A unique QR code is embedded linking to the verification page.
Email Delivery
- System sends the certificate PDF to each recipient via email.
- Also stores data in the backend with status "valid."
QR Code Scanning & Verification
- Anyone can scan the QR code on a certificate.
- Redirects to a public verification page showing:
  - Certificate details
  - Verification status (valid/invalid)
  - Option to download/view certificate