Flatten PDF
Permanently non-editable · 100% on-device
Drop your PDF here
or tap to browse
PDF ONLYFully local. Your PDF never leaves this device. All processing runs in-browser via WebAssembly — no server, no upload, no telemetry.
Non-Editable
Recipients can't tamper with form fields, annotations, or signatures once flattened.
Four Modes
From vector-preserving to full raster — pick your balance of fidelity vs. security.
Metadata Wipe
Strip and Stealth modes remove author, title, producer, and hidden traces.
100% Private
Runs entirely in your browser. No file ever hits a server.
How to Flatten a PDF
Upload your PDF
Drop the file or click to browse. It stays on your device.
Pick a mode
Standard for most cases. Full for maximum security. Strip or Stealth to wipe metadata.
Flatten
Form fields, annotations, and signatures are baked into the page.
Download
Save the non-editable PDF, ready to share.
Frequently Asked Questions
What does 'flatten' actually mean?
Flattening merges layered PDF objects — form fields, annotations, comments, signatures — into the static page content stream. The visual result is identical but the file loses its interactivity.
Which mode should I pick?
Standard for signed contracts and filled forms. Full or Stealth when the PDF contains annotations, sticky notes, or embedded JavaScript you want gone. Strip when you need text-selectable output plus metadata removal.
Will text stay selectable?
In Standard and Strip modes, yes. Full and Stealth rasterise every page, so text becomes part of the image.
Does flattening remove digital signatures?
It preserves the visual appearance of a signature but invalidates its cryptographic signature block. Only use this if you don't need the signature to verify.
Is my file uploaded?
No. Every mode runs in your browser via WebAssembly. Nothing is sent anywhere.