What is a print proof?
A proof is a final preview of a print job, as a PDF or a physical print, that you check and approve before the full run is printed.
What it means for your file
A PDF (soft) proof checks layout, text and trim; only a printed (hard) proof shows color reliably, because screens don’t match ink. Once you approve a proof, mistakes in it are usually yours to pay for, so read it slowly.
An example
A careful proof check: read every word, including phone numbers, web addresses and small print; confirm the size and that nothing important sits close to the trim; print it at 100% and fold it to check panel order on folded pieces; and judge brand colors on a hard proof or an earlier printed job, never on screen.
A common mistake
Approving a PDF proof for color. A screen gives off light and paper reflects it, so the colors on a PDF proof are only a guide. If a color matters, ask for a hard proof, printed on the press or a calibrated proofing printer, ideally on the paper the job will use.
How to fix it
If your printer sent the file back saying “The spine width doesn’t match the page count,” the fix page has the step-by-step way to do it yourself, and a fixed price if you’d rather have it done.
Where else it comes up
All print terms in the glossary, or run your file through the free print-ready checker.
Free download
The print-ready file checklist
The seven checks every file goes through before it leaves us. Useful whether or not you ever send us a job.
Your print-ready checklist.
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Not sure what your file needs?
Ask a question or send the file in the chat. A designer usually answers within minutes with a fixed price, and nothing starts until you say yes.