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Verify Protect

Frequently Asked Questions

Everything you need to know about protecting and verifying your documents with Vertifile.

Getting Started

What is Vertifile?
Vertifile is a document anti-forgery platform. It takes any document (PDF, image, text) and creates a tamper-proof .pvf file with a live holographic stamp that freezes red if the document is altered.
What is a .pvf file?
A Protected Verified File — a self-contained HTML document that includes the original file, cryptographic signature, and animated verification stamp. Opens in any browser.
How do I protect a document?
  1. Go to vertifile.com/upload
  2. Sign in or create an account
  3. Drag your file (PDF, image, or text)
  4. Wait 10 seconds
  5. Download your .pvf file
How do I verify a document I received?
  1. Go to vertifile.com/verify
  2. Drag the .pvf file to the upload zone
  3. If the stamp spins green — it's authentic
  4. If the stamp freezes red — it's been tampered with
Do I need to install anything?
No. .pvf files open in any modern browser (Chrome, Firefox, Safari, Edge). For a better experience, download the PVF Viewer desktop app.

Security & Privacy

Does Vertifile read my documents?
No. Vertifile uses BLIND Processing — the server never reads, accesses, or stores your document content. Only a cryptographic hash (fingerprint) is computed. Your document stays on your device.
What are the 9 security layers?
  1. SHA-256 Hash (document fingerprint)
  2. HMAC-SHA256 Signature (server-signed)
  3. 5-Minute Token Refresh
  4. Code Integrity Hash
  5. Chained Token (binds all parameters)
  6. Anti-DevTools Detection
  7. JavaScript Obfuscation
  8. Holographic Animated Stamp
  9. Polygon Blockchain Anchoring
Where is my data stored?
Cryptographic hashes are stored on US/EU cloud infrastructure (Render + Neon PostgreSQL). Document content is never stored on our servers. Blockchain records are on Polygon (decentralized).
What happens if Vertifile shuts down?
Your .pvf files remain functional — they're self-contained HTML documents. Blockchain records on Polygon remain permanently accessible. We commit to 90 days advance notice.

Pricing

How much does it cost?
  • Pro: $49/month -- 500 documents, custom branding, API access. Overage: $0.15/doc
  • Business: $79/month -- 1,000 documents, team management. Overage: $0.10/doc
  • Enterprise: Custom pricing -- unlimited documents, no overage, white-label, on-premise, SLA

Exceed your limit? No problem -- extra documents are billed at the overage rate. Your workflow never stops.

Is there a trial?
Yes! Every Pro plan includes a 14-day trial. No credit card required.
Can I cancel anytime?
Yes. No long-term contracts. Cancel anytime from your dashboard.

Technical

What file formats are supported?
PDF, PNG, JPG/JPEG, TXT. Up to 50MB per file.
How do I integrate the API?
See our API documentation. Quick start: send a POST request to /api/create-pvf with your API key and the file to protect.
Can I customize the stamp?
Yes! Pro and Enterprise users can add their organization logo, brand color, and custom stamp text through the Branding settings.
Does it work offline?
The .pvf file displays the document offline. Full verification requires an internet connection to check the server-side hash.
What's the maximum file size?
50MB per file.

Legal

Is .pvf legally recognized?
The .pvf format has a patent pending with the Israeli Patent Office and an IANA-registered MIME type (application/vnd.vertifile.pvf). While no Israeli court has ruled on .pvf specifically, it provides strong cryptographic evidence of document authenticity.
Are you GDPR compliant?
Yes. We process data under GDPR Article 6 legal bases (contract performance, legitimate interest, consent). We offer DPA agreements for Enterprise customers.
Do you have a Data Processing Agreement (DPA)?
Yes. Enterprise customers can request a DPA at privacy@vertifile.com.