Document Authenticity You Can Prove
Send certified documents that recipients can trust are genuine. Every document gets an invisible forensic seal. Verify incoming documents for tampering with forensic analysis and an integrity score of 0-100.
This document is authentic and shows no signs of tampering. All metadata is consistent.
Multiple signs of tampering detected: modified PDF structure, hidden JavaScript, mismatched metadata timestamps.
How Seal Works
Three simple steps to prove document authenticity
Send Certified
Upload any document and send it through Veriflo Seal. An invisible forensic seal is embedded in the PDF structure, metadata, and pixels.
Recipient Verifies
Recipients upload the document to verify its authenticity. Veriflo runs forensic analysis and generates an integrity score in seconds.
Trust Established
Recipients see detailed results: integrity score, risk level, and specific findings. No account needed. Verification is instant and free.
Key Capabilities
Advanced forensic analysis to detect every type of tampering
Send Certified Documents
Every document you send through Veriflo Seal gets an invisible forensic seal. Recipients know it's authentic and unmodified.
Forensic Integrity Checking
Deep analysis of PDF metadata, creation dates, creators, producers, and structural anomalies to detect tampering.
Integrity Score 0-100
Every document gets a risk assessment. Clean, Low, Medium, High, or Critical — instantly know how confident you can be.
Image & Media Analysis
EXIF data analysis, compression quality checks, and detection of hidden content in embedded images.
Hidden Content Detection
Detect embedded JavaScript, malware signatures, and potentially dangerous content hidden in documents.
Tamper Detection
Identify incremental saves, structural anomalies, and modification signatures invisible to the human eye.
Integrity Scoring System
Clear risk levels for informed decision-making
No signs of tampering detected. Document is authentic.
Minor inconsistencies. Likely safe but worth review.
Moderate risk detected. Investigate before trusting.
Strong signs of modification. Do not trust.
Multiple tampering indicators. Reject immediately.
Use Cases for Seal
Protect any document that needs to prove authenticity
Financial Invoices
Protect high-value invoices from interception and tampering. Guarantee bank details haven't been changed.
Legal Contracts
Send contracts with proof of authenticity. Recipients verify terms haven't been secretly modified.
Financial Statements
Certify balance sheets, P&L statements, and financial reports for audits and regulatory compliance.
Certificates & Credentials
Verify academic diplomas, professional certifications, and credential documents are genuine.
Compliance Documentation
Ensure regulatory filings, audit reports, and compliance documents maintain integrity throughout distribution.
Board & Executive Materials
Confidently distribute sensitive board materials knowing they're protected against tampering and leaks.
What Seal Analyzes
PDF Metadata
Creation date, modification timestamps, creator and producer information, encryption methods, and version history.
Document Structure
Checksums, incremental saves, internal links, forms, and structural anomalies that indicate tampering.
Media & Content
Image EXIF data, compression artifacts, embedded JavaScript, and potentially harmful content signatures.
Security Signatures
Malware signatures, exploits, hidden content, macros, and suspicious patterns that suggest document manipulation.
Example: Detailed Findings
Also see Veriflo Shield
Veriflo Shield is our companion product for real-time document protection. While Seal certifies documents after creation, Shield protects documents during transmission with end-to-end encryption and access controls.
Learn about ShieldStart Certifying Documents Today
Send authentic documents with invisible forensic seals. Recipients verify with forensic analysis and integrity scoring. Free to get started.