Contract-first output · Schema-validated JSON · CLI and parity workflows

Authoritative PDF facts,
not fragmented guesses.

codexPDF is Print with Synergy's authoritative, read-only PDF facts reference. Extract once, validate against published schemas, and let downstream tools consume stable document facts.

Try API demo View on GitHub Read the docs

The contract layer your PDF stack can trust

codexPDF centralizes extraction into one authoritative facts engine so every downstream system can operate from the same versioned truth.

Contract-first output

CodexDocument is the stable root contract for extracted PDF facts, independent of consumer product logic.

Schema validation

Published schemas under versioned paths let every payload be validated in CI and runtime workflows.

Read-only boundary

codexPDF extracts facts only; no edits, no rendering mutations, no hidden policy side effects.

CLI workflows

Use extract, probe, validate, and parity commands to wire codex into local tooling and automation.

Parity profiles

Projection-based parity checks compare codex output against baseline systems and highlight drift.

Consumer-agnostic

Downstream tools can adapt codex output through thin adapters instead of re-parsing every document.

Typed Python models

Python package ships typed models and contract-aware primitives for reliable integrations.

Open-source AGPL

Full source under AGPL-3.0-or-later with no closed black-box extraction layer.

Effective Image DPI

v1.17.0

Captures the true printed resolution of every embedded image — accounting for scale, not just declared pixels. A 300 DPI image enlarged 2× reports 150 DPI. Gathered per-placement across all pages.

See the full feature breakdown

Open source · managed hosting

Independent tools. Pick the ones you need.

A toolkit of focused, standalone PDF utilities — extraction, preflight, viewing, assembly, imposition planning, and an asset store. Each one plugs into the prepress workflow you already run. Use the open source yourself, or let us host any single tool for you on work.withsynergy.io.