Frequently Asked Questions

Vertifile is a document anti-forgery platform. It takes any document (PDF, image, text) and creates a tamper-evident .pvf file with a live holographic stamp that freezes red if the document is altered.

A Protected Verified File — a self-contained HTML document that includes the original file, cryptographic signature, and animated verification stamp. Opens in any browser.

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

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

No. .pvf files open in any modern browser (Chrome, Firefox, Safari, Edge). Nothing to install.

In Blind mode, no — encryption and hashing happen in your browser, and only ciphertext plus the cryptographic fingerprint reach our servers. In standard mode, your sealed file is stored to power share links; delete it anytime.

1. SHA-256 Hash (document fingerprint)
2. HMAC-SHA256 Signature (server-signed)
3. Ed25519 Digital Signature
4. 5-Minute Token Refresh
5. Code Integrity Hash
6. Chained Token (binds all parameters)
7. Anti-DevTools Detection
8. JavaScript Obfuscation
9. Holographic Animated Stamp

Cryptographic hashes are stored on US/EU cloud infrastructure (Render + Neon PostgreSQL). In Blind mode, content is encrypted in your browser and we cannot read it. In standard mode, your sealed file is stored to power share links and can be deleted anytime.

Your .pvf files remain functional — they're self-contained HTML documents. We commit to 90 days advance notice, and all your document hashes and verification data can be exported.

• Pro: $29/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, custom SLA terms

Free during early access -- no credit card required. Exceed your limit later? Extra documents are billed at the overage rate. Your workflow never stops.

Vertifile is free during early access — no credit card required. Paid plans take effect when billing launches: Pro $29/month, Business $79/month.

Yes. No long-term contracts. Cancel anytime from your dashboard.

PDF, PNG, JPG/JPEG, TXT. Up to 50MB per file.

See our API documentation. Quick start: send a POST request to /api/create-pvf with your API key and the file to protect.

Yes! Pro and Enterprise users can add their organization logo, brand color, and custom stamp text through the Branding settings.

The .pvf file displays the document offline. Full verification requires an internet connection to check the server-side hash.

50MB per file.

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.

Yes. We process data under GDPR Article 6 legal bases (contract performance, legitimate interest, consent). We offer DPA agreements for Enterprise customers.

Yes. Enterprise customers can request a DPA at privacy@vertifile.com.