FillPDF.app

Fill a PDF online free — right in the browser. Add text, checkmarks, dates, signatures, highlights, shapes and images, then download the completed PDF.

Local development

Just open index.html in a browser, or run a local server:

python3 -m http.server 8000

Then visit http://localhost:8000

Deployment

This site is deployed on GitHub Pages from the main branch.

Pages

• index.html — Main app
• privacy.html — Privacy Policy
• terms.html — Terms of Service
• 404.html — Custom 404 page

Configuration

• Google Analytics: replace G-XXXXXXXXXX in index.html with your real GA4 ID.
• Search Console: replace YOUR_VERIFICATION_CODE in the <meta name="google-site-verification"> tag.
• Custom domain: edit the CNAME file.

Features

• Text, checkmark, date, signature tools
• Highlight, freehand draw, rectangle, arrow, whiteout, image insertion
• Auto-detection of AcroForm fields
• Page rotate and delete
• Undo/redo, duplicate (Ctrl+D), arrow-key nudge
• 100% browser-side processing — files never leave the device
• Lazy-loaded pdf-lib (only fetched on Download) for fast first paint

License

MIT