Bulk Certificate Generator

A single-page web app for generating personalized certificates in bulk as PDFs. Everything runs in the browser — no server, no build step.

Features

• Any image template — PNG, JPG, or any format the browser can render
• Visual editor with live preview
  • Drag the name anywhere on the certificate
  • Sample text input for positioning
  • 10 Google Fonts + 4 system fonts (Georgia, Arial, Times New Roman, Courier New)
  • Font size (10–1500 px), color, weight, and alignment (left / center / right)
  • Auto-shrink max-width so long names stay inside the template
• Bulk generation — paste one name per line; case-insensitive duplicate detection with live counter
• Direct PDF export — uses the File System Access API to write one PDF per name straight to a folder you choose

How It Works

The app is a 3-step flow:

1. Upload — pick your certificate template image.
2. Edit — drag the placeholder into position and tweak font, size, color, alignment, and max width. The preview updates live.
3. Generate — paste your list of names, choose an output folder, and click Generate Certificates. PDFs are written to disk one at a time.

Getting Started

1. Clone the repo.
2. Open index.html directly in a Chromium-based browser (Chrome, Edge, Brave).
   • You can also serve it locally with any static server (python -m http.server, npx serve, etc.).
3. Follow the on-screen steps.

No install, no dependencies, no API keys.

Browser Support

Folder picking uses the File System Access API, which is supported in Chrome / Edge / Brave and other Chromium browsers. Firefox and Safari are not supported.

Tech

• Pure HTML / CSS / vanilla JS — no build step, no bundler
• jsPDF for PDF generation (loaded via CDN)
• Google Fonts for typography
• File System Access API for direct-to-disk folder writing

Privacy

All processing happens locally in your browser. Certificate templates and name lists are never uploaded anywhere.