PDF tools for sensitive documents, with files that stay on your device
Redaction, metadata removal, and everyday PDF work for documents you can't afford to leak — processed in your browser, not uploaded to a server.
Works in any modern browser. No account, no install.
Some documents — IDs, medical records, contracts, financial statements, legal papers — carry data you can't afford to leak. The cleanest approach is a tool that processes files on your own device, so the data stays under your control. Vikone runs redaction, metadata removal, and merging in your browser with no upload — keeping sensitive files off third-party servers by default, on any computer with no install.
What counts, and where it matters
A sensitive document is anything you'd be uncomfortable seeing on someone else's server. A few common cases:
What counts as sensitive
Government IDs, passports, and driver’s licenses; medical and health records; bank statements and tax forms; signed contracts and NDAs; anything with names, addresses, account numbers, or protected-category detail.
Redacting before you share
Black out the identifying parts — ID numbers, account numbers, names — flattened into the file, not just visually covered, before sending a document on.
Stripping metadata before sharing
Files exported from apps can carry author names, edit history, location data, and comments in metadata. Removing it locally avoids leaking detail you didn't mean to send.
Sensitive data, in plain terms
Sensitive documents are governed by different rules depending on what they contain — data-protection law for personal data, confidentiality duties for client material, sector rules for health or financial records. Any tool that uploads a file places it, briefly, on a third-party server. For routine, non-sensitive documents that is often acceptable, and reputable services encrypt and delete promptly.
In-browser processing makes the question simpler: when the file is not uploaded, there is no third-party copy to account for. For anything genuinely sensitive, that removes a category of exposure rather than managing it. You choose per document which level of care fits.
How to check for yourself
You don't have to take the claim on trust — you can confirm files stay local:
Disconnect and keep working
Load the tool, turn off your network, and run the operation. If it still works offline, processing is happening on your device.
Watch the network panel
Open developer tools, go to the Network tab, and run a task. You won't see your file being uploaded.
When uploading is still fine
In-browser isn't the only safe choice — it depends on the document.
- Public and already-published documents carry no confidentiality concern.
- A reputable cloud service with appropriate safeguards may suit routine, lower-stakes files.
- Blank templates and forms with no personal data are low-stakes.
Not every document needs local processing — but for IDs, health, financial, and legal material, keeping the file on your device is the simplest way to keep it controlled.
Redact a sensitive PDF without uploading it
Black out IDs and account numbers in your browser — the file stays on your device.
Open the redaction toolCommon questions
What makes a document sensitive?
Anything carrying personal data, account numbers, health or financial detail, or material under a confidentiality duty — IDs, medical records, statements, contracts. If you'd be uncomfortable seeing it on someone else's server, treat it as sensitive.
How do I redact a sensitive PDF safely?
Use a tool that flattens the redaction into the file and processes locally. Vikone blacks out the identifying parts in your browser, removing them from the file, with no upload.
Why remove metadata from sensitive files?
Metadata can carry author names, edit history, and location data you didn't mean to share. Removing it before sending avoids leaking detail beyond the visible content.
Do I need an account or install?
No. Vikone runs in any modern browser with no install and no account. Processing happens locally on your device.