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Open-Source PDF SDK & AI Document Processing

Get the full self-hosted SDK and AI document processing on GitHub. One-click deploy to quickly build your document workflows.

Guides

Overview

The security module provides features including password protection, permission settings, Bates coding, background, and page header and footer functionalities. Document security is guaranteed by managing document passwords and permissions, and by adding logos and copyright information.

Key Capabilities

  • Password Management: Set, modify, or delete document passwords and permissions.
  • Encryption Standards: Support for standard PDF security handlers (40-bit and 128-bit RC4 encryption), as well as 128-bit and 256-bit AES (Advanced Encryption Standard) encryption.

Guides

Set Password

By managing document passwords and permission settings, unauthorized access is prevented, and user operations on the document can be controlled.

Remove Password

How to remove a document's password and permissions via the API.