Does ToPDF work offline? Yes — fully, after one first visit

Yes. Visit once online so your browser caches the scanning engine (a visible one-time download), and from then on everything works with zero connectivity — including in airplane mode.

What works offline (everything)

• Photo import, edge detection, crop editor, enhancement
• Orientation and file-name suggestions (the models are cached locally)
• Multi-page building, reorder, rotate, undo
• PDF download; Share works when the target app doesn't itself need network

Why offline capability isn’t a gimmick here

It's the natural consequence of on-device processing — and simultaneously your proof of it: a scanner that finishes the whole job offline demonstrably isn't uploading anything. (The privacy angle.) Practically, it also covers flights, basements, roaming and dead zones — paperwork's favourite venues.

Frequently asked questions

How do I make sure it’s ready before going offline?

Open topdf.online once on Wi-Fi and let the splash’s progress bar finish. That’s it — optionally add it to your home screen for one-tap offline access.

Does clearing browser storage break offline?

Until the next online visit re-caches the engine automatically, yes. Nothing else is lost — no documents live in that cache.