Engine
The detection-only PDF preflight engine
The same engine that powers lintPDF. It reads PDFs and reports what’s wrong with them — color spaces, fonts, images, transparency, page geometry, packaging geometry, barcodes — without touching a single byte of the input file.
Open source — in progress
The OSS release is in preparation. When it ships you’ll be able to run the engine locally, inspect the source, and contribute back. The OSS engine will have its own documentation site published alongside the repository.
Get in touchDetection-only
Reads the PDF, never writes. Your input file is byte-identical when we’re done. No silent fixes, no re-distillation, no “preserved” metadata that quietly changed.
Standards-aware
PDF/X-1a, PDF/X-3, PDF/X-4, PDF/A, ISO 15930, GWG 2022. The check catalog covers fonts, color spaces, images, transparency, page geometry, packaging dielines, and barcodes.
Built for prepress
Written by people who shipped print jobs for a living. The check catalog reflects what actually breaks at press, not what looks tidy in a spec PDF.
Programmable
The engine ships with a CLI and a Python API. Wire it into a hot folder, a CI pipeline, or your existing prepress automation without rewriting anything.