Pre-Press Validator
Audit a PDF for print-readiness — page-size consistency, bleed boxes, fonts embedded, font subsetting, raster image presence.
1. Upload your file
How does the Pre-Press Validator work?
Audit a PDF for print-readiness before sending to a press. The validator checks page-size consistency (printers usually want every page identical), TrimBox and BleedBox presence (required for any design that bleeds), font embedding and subsetting (non-embedded fonts get substituted by the printer's defaults), and counts image references so you remember to verify image DPI in your source. Caveat: pdf-lib cannot inspect raster image resolution directly — that check stays with you. For full pre-flight (PDF/X conformance, ink-coverage limits, overprint), use a desktop tool like Adobe Acrobat's Output Preview or a print-shop pre-flight service.
🔒 Security & Privacy
All processing happens on your device. Your files never leave your browser, never touch our servers, and are not stored anywhere. Close the tab and the file is gone.
📱 Use it on any device
Works in any modern browser — Mac, Windows, Linux, iPhone, Android, and tablets. No installation, no app to download. Just open the page and start.
⚡ Quick & easy
Drag, drop, click. Most files process in seconds, not minutes. No watermarks added to your output, no per-day limits, and the tool always shows the result before asking you to download.
🎁 Always free, no signup
Free to use, every time. No account creation, no email required, no “trial” that converts to a paid plan. We make money from ads so you don’t have to pay.