Hackathon participant badge generator with QR code, PDF & email delivery

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Title Hackathon Participant Badge Generator with QR Code & Email Delivery Description A fast, reliable, and fully automated workflow that generates professional participant badges for hackathons, t...

Best for

Document Extraction automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.webhook, n8n-nodes-base.function, n8n-nodes-base.if, n8n-nodes-base.httprequest, n8n-nodes-base.gmail, n8n-nodes-base.respondtowebhook, n8n-nodes-verifiemail.verifiemail, n8n-nodes-htmlcsstopdf.htmlcsstopdf

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Jitesh Dugar.

Original n8n.io source

1.1 Workflow description

Title: Hackathon participant badge generator with QR code, PDF & email delivery
Workflow name: Hackathon participant badge generator with QR code, PDF & email delivery

Title

Hackathon Participant Badge Generator with QR Code & Email Delivery

Description

A fast, reliable, and fully automated workflow that generates professional participant badges for hackathons, tech events, and workshops — complete with unique Badge ID, QR verification, PDF output, and email delivery.

This workflow takes any simple registration input and transforms it into a verified, branded participant badge in under 10 seconds.

What this workflow does

Accepts event registrations via a POST Webhook (name, email, event, team, role).
Performs input validation and disposable/fake email detection using VerifiEmail.
Creates a unique Badge ID (e.g., HACK-2025-1763560499-AB3XYF).
Generates a public verification URL and QR code for check-in.
Builds a high-resolution badge (1056×816px) with event branding, logo, gradient background, and QR code.
Converts the HTML badge design into a print-ready PDF using PDFMunk (htmlcsstopdf).
Sends a beautiful HTML email via Gmail that includes:
- Inline badge preview (visible immediately)
- Attached PDF badge
- Verification URL + Badge ID
Logs all badge metadata to Google Sheets for audit and check-in tracking.
Returns a clean JSON success response to the caller.

Use Cases

Ideal for:

Hackathons & tech conferences
Engineering fests & competitions
Workshops, meetups, bootcamps
Any event requiring verified digital badges with QR check-in

Key Features

Real-time email verification blocks fake/disposable registrations.
QR code check-in powered by a reliable public QR API.
Fully customizable badge design — swap logos, colors, fonts easily.
Inline email preview means participants see their badge instantly.
Complete event log stored in Google Sheets with timestamps, PDF links, and verification URLs.
Extendable (add Slack alerts, Drive uploads, role-based templates, etc.)

Setup Instructions (5 Minutes)

Add your credentials:
- VerifiEmail
- PDFMunk (HTML → PDF)
- Gmail
- Google Sheets
Update your:
- Logo URL
- Verification domain
Activate the workflow and start sending POST requests to the Webhook.
Badges will be generated and emailed automatically — no manual work needed.

Why this workflow is special

It’s built for speed, reliability, visual quality, and zero manual overhead. Participants receive a sleek, branded badge instantly, organizers get automated logs, and your event gets a professional identity.

Perfect for teams who want enterprise-grade badge automation without writing a single line of code.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Webhook Trigger

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 1

Block 2 - Validate Input

Type / Role: n8n-nodes-base.function - function
Config choices: Version 1

Block 3 - Email Valid?

Type / Role: n8n-nodes-base.if - if
Config choices: Version 1

Block 4 - Generate Badge ID & URL

Type / Role: n8n-nodes-base.function - function
Config choices: Version 1

Block 5 - Download PDF

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 6 - Send Badge via Gmail

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2

Block 7 - Success Response

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1

Block 8 - Verifi Email

Type / Role: n8n-nodes-verifiemail.verifiEmail - verifiEmail
Config choices: Version 1

Block 9 - HTML to PDF

Type / Role: n8n-nodes-htmlcsstopdf.htmlcsstopdf - htmlcsstopdf
Config choices: Version 1

Block 10 - Log to Sheets

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 11 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 12 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 13 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 15 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Hackathon participant badge generator with QR code, PDF & email delivery
Complexity	advanced
Nodes	15
Categories	Document Extraction
Author	Jitesh Dugar
Published	19 Nov 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/11016/11016.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Document Extraction workflows

Frequently asked questions

What does Hackathon participant badge generator with QR code, PDF & email delivery do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Document Extraction use case.

Jitesh Dugar

133 workflows

Nodes

n8n-nodes-base.webhook n8n-nodes-base.function n8n-nodes-base.if n8n-nodes-base.httprequest n8n-nodes-base.gmail n8n-nodes-base.respondtowebhook n8n-nodes-verifiemail.verifiemail n8n-nodes-htmlcsstopdf.htmlcsstopdf

Complexity

advanced

Published 19 Nov 2025

Likes 0

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Install path: /data/workflows/11016/11016.json

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Hackathon participant badge generator with QR code, PDF & email delivery

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Title

Description

What this workflow does

Use Cases

Key Features

Setup Instructions (5 Minutes)

Why this workflow is special

Tags

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Webhook Trigger

Block 2 - Validate Input

Block 3 - Email Valid?

Block 4 - Generate Badge ID & URL

Block 5 - Download PDF

Block 6 - Send Badge via Gmail

Block 7 - Success Response

Block 8 - Verifi Email

Block 9 - HTML to PDF

Block 10 - Log to Sheets

Block 11 - Sticky Note

Block 12 - Sticky Note1

Block 13 - Sticky Note2

Block 14 - Sticky Note3

Block 15 - Sticky Note4

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions