Four repos. One ecosystem.

Authoritative, versioned PDF facts contract for Print with Synergy tools.

codex-pdf is a read-only extraction engine that publishes a stable CodexDocument contract. Downstream systems consume canonical PDF facts without re-parsing files in multiple codepaths.

• Contract-first JSON output rooted at CodexDocument
• Schema-validated payloads with SemVer compatibility policy
• CLI workflows for extract, probe, validate, and parity
• Consumer-agnostic output for adapters and downstream engines
• AGPL open source with typed Python models

Embeddable PDF viewer with separations, TAC, layers, and annotation overlays.

loupe-pdf is a browser-native review surface for print workflows. It consumes PDF data and service adapters to give reviewers high-fidelity visual tooling in web apps.

• Embeddable React viewer architecture
• Separations, TAC, layers, and review tools
• Plugin and theming support for host products

Detection-only PDF preflight engine with deep standards coverage.

lint-pdf checks document conformance and quality against preflight rulesets while preserving original files.

• 500+ checks across common production concerns
• PDF/X-focused conformance workflows
• CLI and API service integration options

PDF assay and metadata reporting for structural inventory.

assay-pdf inventories what's in a PDF so downstream engines can validate, compare, and reason over document structure reliably.

• Per-page and document-level inventories
• Font, color, image, and structure reporting
• Schema-friendly output for downstream tools