Check your PDF before print. Right in the browser.
Color separations, overprint, ink coverage (TAC), RGB objects and output intent — no Acrobat, no install.
Free · no sign-up · files deleted within 24 h
Color separations, overprint, ink coverage (TAC), RGB objects and output intent — no Acrobat, no install.
Free · no sign-up · files deleted within 24 h
Exactly what comes off the press — before you send the data.
Preview each printing plate on its own, like on film. Toggle plates on and off to see what goes where.
Catches disappearing white text and wrong overprint settings before they vanish in print. Side-by-side “with / without overprint”.
A map of areas where total ink coverage exceeds the stock limit. Set the threshold to match your press.
Flags RGB objects and shows their conversion to print colors through an ICC profile — just like the printer’s RIP.
Output intent from the PDF (FOGRA39 and more), switching Media/Crop/Trim/Bleed/Art and box outlines to check bleed.
Channel coverage under the cursor, checks for non-embedded fonts, image resolution and document metadata.
A short guide: CMYK, bleed, overprint, ink coverage (TAC), output intent, resolution and embedded fonts — and what to check at each step.
No tracking, no black boxes.
Anyone preparing print data without Acrobat Pro — especially Affinity and InDesign users.
See separations and overprint of your exported PDF — the Acrobat Output Preview checks, from Affinity Publisher, InDesign or QuarkXPress.
Verify client PDFs — TAC, spot colors, bleed.
A pro preview of print data for free, right in the browser.
Yes. The tool is a free beta, with no sign-up and no installation.
Files are processed on our own server and deleted automatically within 24 hours. We never hand them to a third-party service.
Yes. Preflighter shows color separations, overprint and ink coverage in the browser — the checks you’d run in Acrobat Pro’s Output Preview, for free.
Yes — open the print-ready PDF you export from any of them (Affinity Publisher, InDesign, QuarkXPress, CorelDRAW). It reads CMYK and spot colors.