📐 Flatten PDF
Make filled-in PDF form data uneditable
🔒 Your image never leaves your device. All processing happens locally in your browser using pdf-lib (client-side). No upload, no server, no tracking.
Features
- Locks Form Fields — Converts interactive fields into uneditable page content.
- Print-Ready — Ensures the filled-in version is what prints and shares.
- 100% Private — Runs in your browser.
- Fast — Most PDFs flatten in under a second.
How It Works
- Upload filled PDF — Drop your file.
- Flatten — Click Flatten & Save.
- Download — Get the final, locked PDF.
Use Cases
- Submit a form where recipients shouldn't re-edit
- Lock in a filled PDF before printing
- Share final signed forms without accidental edits
Frequently Asked Questions
Can flattening be undone?
No. Keep a copy of the editable original if you might need to change values later.
Does it work on all forms?
Yes, both AcroForms and XFA forms are supported.
Upload to server?
No. Runs in your browser.
Related Tools
- 🏷️ Edit PDF Metadata — Edit PDF metadata — title, author, subject, keywords
- ✍️ Sign PDF — Sign PDFs with a drawn, typed, or uploaded signature
- 🔐 Password Protect PDF — Encrypt your PDF with AES — block opening, printing, or editing
- 🧹 Sanitize PDF — Strip metadata, hidden text, and embedded scripts before sharing