Privacy & safety
Straight answers about document privacy: what online scanners do with your files, how on-device processing works, and safe habits for IDs and sensitive papers.
Are online PDF scanners safe? What actually happens to your filesMost “free online scanner” sites upload your document to their servers. Learn the risk model, the questions to ask, and how on-device scanners differ.
On-device scanning explained: how a browser scans without uploadingHow ToPDF runs computer vision and OCR inside your browser tab — WebAssembly, local models, and why your document physically cannot reach a server.
How to check whether a scanner uploads your documentsTwo tests anyone can run — airplane mode and the network tab — that reveal whether a “free scanner” sends your files to a server.
Scanning sensitive documents safely: a practical checklistMedical records, finances, legal papers: a calm checklist for digitising sensitive documents without creating new copies you can’t account for.
Scanning your passport online: how to do it safelyYour passport deserves paranoia. A safety-first walkthrough: on-device scanning, verifying the tool, sharing rules and cleanup afterwards.
GDPR-friendly document scanning for individuals and small teamsScanning IDs and personal documents under GDPR thinking: data minimisation, no third-party processors, and clean retention habits.
Document scanner without sign-up: why no-account is a featureNo email, no login, no “free trial”: what a truly account-free scanner looks like, and why accounts and documents are a bad pairing.
Photo metadata (EXIF): what your document scans reveal — and don’tPhotos carry hidden metadata like location and device info. What EXIF means for document scans, and what survives into a ToPDF PDF.
Sharing ID copies safely: rules that prevent 90% of misuseWho really needs your ID, which channel to use, watermarking a purpose onto copies, and how to keep track of who has one.
Deleting document scans properly (all the copies, not just one)The scan you delete is rarely the only one. A quick sweep of camera roll, downloads, chats, email and cloud recycle bins — and what “deleted” really means.
Offline scanning: the strongest privacy statement a tool can makeA scanner that works in airplane mode cannot be leaking your documents. Why offline capability doubles as a privacy proof.
Why so many free scanner apps monetise your data (and how to spot it)Servers and staff cost money; if a scanner is free and cloud-based, the funding comes from somewhere. The common models and their tells.
What data does ToPDF collect? (Short answer: your documents, never)A plain-language inventory: what stays on your device, what a static host inevitably sees, and the analytics we simply don’t run.
Scan it now — free & private
Snap a photo, get a clean auto-cropped PDF in seconds. Everything runs in your browser — your documents never leave your device.
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