Print File Checker & Repair

Before you send a file to the printer, check it'll come out sharp and cut cleanly — resolution at the real print size, bleed, safe area and shape — then download a fixed, print-ready version.

  • Free and private — your file never leaves your device
  • Real DPI at A4, A5, business card, photo and poster sizes
  • Adds missing bleed, sets 300 DPI and saves a print-ready JPG or PNG
Drop your print file hereJPG, PNG or WebP · checked in your browser, never uploaded

Frequently asked questions

What is DPI and why does 300 matter?

DPI (dots per inch) is how many pixels of your image are printed per inch of paper. At 300 DPI, prints look sharp even up close; below about 150 DPI they look soft or pixelated. The checker works it out from your image's real pixel size and the paper size you choose — the DPI number saved in the file alone means nothing.

What is bleed?

Printers print a little larger than the final size and trim the edges. Bleed is the extra 2–3 mm of image beyond the cut line. Without it, a small cutting shift leaves a thin white edge. If your file was made at the exact cut size, “Add bleed by extending edges” creates the bleed for you.

What is the safe area?

The zone a few millimetres inside the cut line. Keep text, logos and faces inside it so nothing important gets trimmed off.

Can it make a low-resolution image sharp?

No — enlarging can't add detail that isn't there, so the checker won't pretend. Print it smaller, use a larger original, or try our AI Image Upscaler first, then check again.

Do you support PDF or CMYK files?

This checker reads JPG, PNG and WebP images. Print-ready PDFs and CMYK files from design software are best checked in that software; for a PDF, export the page as a high-quality image to check its resolution here. CMYK JPEGs are flagged, and the repaired file is saved in RGB, which online printers accept.

Is my file uploaded?

No. Everything — the check, the preview and the repaired file — happens in your browser. Nothing is sent to our servers.

How to check a file before printing

  1. Drop your image and choose the print size — A4, business card, photo, poster or a custom size.
  2. Read the verdict. Green means print-ready. If the resolution is too low, print smaller or use a better original.
  3. Look at the preview: the red edge is trimmed off, the blue line is the cut, and important content must stay inside the green dashed line.
  4. Download the repaired file at the exact size, with bleed and 300 DPI saved in it.

Quick guide to print resolution

  • Business card (85 × 55 mm + bleed): about 1,050 × 690 pixels.
  • A4 with 3 mm bleed: about 2,551 × 3,579 pixels.
  • 4 × 6 in photo: 1,200 × 1,800 pixels.
  • Posters are seen from further away, so 150 DPI usually looks fine.

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