PDF Encrypt

Encrypt / password-protect (pdf-encrypt)

Encrypt / password-protect

Part of the Universal PDF Management & Creation Skill Repository. Category: PDF Management. Every skill is individually callable (INDIVIDUAL MODE) and may also be invoked automatically by the orchestrator (SYSTEM MODE).

When to use

Add password protection and set permissions.

Operations

• AES-128/256
• user + owner passwords
• permission flags (print/modify/copy/annotate)

Engine (what actually executes this)

universal_pdf/core.security:encrypt

All heavy lifting is done on disk / one page at a time by the shared engine — never by loading the document into an LLM context.

Tools & graceful degradation

• Preferred tool: PyMuPDF encryption
• Fallback: pypdf writer.encrypt

If the preferred backend is unavailable the skill transparently uses the fallback or reports a documented limitation. It never reports success when an operation did not actually happen.

Validation (this skill attaches checks to its Outcome)

output is_encrypted

Related skills

pdf-decrypt, pdf-permissions, pdf-orchestrate

Example requests it handles

• "Encrypt this PDF with password 's3cret' and disallow copying."

Notes

Provenance: outputs cite their source page/section where relevant.