PDF Metadata

Read / write / remove metadata (pdf-metadata)

Read / write / remove metadata

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

Manage document properties.

Operations

• read title/author/subject/keywords/creator/producer/dates
• write fields
• strip all metadata
• batch update

Engine (what actually executes this)

universal_pdf/core.meta:set_metadata / remove_metadata (+ inspect for read)

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 set_metadata
• Fallback: pypdf metadata

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)

metadata round-trips (verify after write)

Related skills

pdf-inspect, pdf-provenance, pdf-orchestrate

Example requests it handles

• "Set author to 'Legal Dept' and add keywords."

Notes

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