Security

Security by Design — Not by Promise

✓No Uploads. No Storage. No Risk.
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Security by Design — Not by Promise

Most document tools rely on securing your files after they are uploaded. SecureDoc takes a different approach.

Your files never leave your device.

By eliminating file uploads entirely, SecureDoc removes a major category of security and privacy risks.

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How SecureDoc Protects Your Data

SecureDoc processes all files locally in your browser instead of sending them to remote servers.

This means:

    No file uploads
    No server-side processing
    No document storage
    No third-party access

Your data remains fully under your control throughout the entire process.

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Fully Client-Side Architecture

All operations are executed directly within your browser using modern web technologies and trusted open-source libraries.

This includes:

PDF processing and conversionDocument merging and compressionOCR (text recognition)Encryption and secure operations

Because processing happens locally, there is no exposure to external systems.

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Encryption & Data Protection

SecureDoc uses modern cryptographic standards where applicable, including:

  • AES-256 encryption via browser-native APIs
  • ChaCha20 for efficient secure operations
  • Elliptic Curve Cryptography (ECC) for secure key handling

Encryption is applied to features that require additional protection, such as secure file handling and advanced workflows.

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What SecureDoc Does NOT Do

Security is as much about what you avoid as what you implement.

✗ Upload your files to any server
✗ Store or retain documents
✗ Analyze or inspect document contents
✗ Require accounts for basic functionality
✗ Sell, rent, or share user data
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Secure Authentication

For advanced features, SecureDoc supports authentication through trusted providers:

🔵 Google
🟠 Microsoft

We do not store passwords. Authentication is handled via secure OAuth flows, and only minimal account information (such as name and email) is accessed.

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Infrastructure Security

SecureDoc is delivered over secure, encrypted connections:

  • HTTPS enforced across all pages
  • Modern TLS configurations
  • Secure hosting environment
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Transparency

We believe security should be verifiable, not assumed.

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Limitations

While SecureDoc significantly reduces risk by design, no system is completely risk-free.

  • Security depends on the integrity of your device and browser
  • Malicious software on a device may affect local processing
  • Users are responsible for maintaining a secure environment
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No Uploads
Files never leave your device
⚡
Local Processing
Everything runs in your browser
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AES-256
Military-grade encryption
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Open Source
Transparent dependencies

Security Questions or Concerns?

For security-related questions or to report a vulnerability, please contact us.

📧 security@supersecuredoc.com

Last Updated: May 2026

See our Privacy Policy and Third-Party Notices

🔒 Files stay in your browser