tecnickcom/tc-lib-pdf-encrypt
PHP library that handles PDF encryption and decryption: password and certificate handling, key derivation, permission flags, and the encryption dictionary. Supports AES-128, AES-256 R5, and AES-256 R6; RC4 modes are deprecated and slow, so use AES for new documents.
Adopt if:
Look elsewhere if:
For Executives: "This PHP library lets us securely encrypt PDFs with minimal dev effort, addressing compliance gaps and unlocking premium features. For example, we could offer password-protected document sharing as a paid tier, or auto-encrypt sensitive uploads to meet GDPR/HIPAA. It’s a low-risk way to add security without hiring cryptography experts."
For Engineering: "A lightweight, open-source solution for PDF encryption in Laravel. Pros: No external dependencies, integrates with Laravel’s file system. Cons: Low activity (audit forks/maintenance); may need wrappers for edge cases. Alternatives like commercial SDKs exist but add cost. Recommend POC for compliance-critical use cases first."
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