Print Ready Check
Menu

Check whether your image or PDF is ready to print

Check whether your image or PDF is ready to print—and learn exactly how to fix it. Print Ready Check runs in your browser so you can answer DPI, print-size, and PDF page-size questions without creating an account.

Drop an image or PDF to begin

The homepage detects the file type and opens the matching checker.

Drag and drop, paste, or choose a file. The choose-file control is keyboard accessible.

Supported checks

  • Image pixel count and megapixels
  • Embedded DPI/PPI metadata, when present
  • Print size at 150, 200, 240, and 300 PPI
  • PDF page dimensions and named paper sizes
  • Mixed page sizes, boxes, and font embedding when readable
  • Local PDF page-size normalisation

Common print questions

What size can a 3000 × 4000 image print at 300 PPI?

A 3000 × 4000-pixel image can print at 10 × 13.33 inches at 300 PPI. Divide each pixel dimension by 300 to calculate the print dimensions.

Formula: print inches = pixels ÷ PPI. Here, 10 × 13.33 inches.

What is A4 size in pixels at 300 PPI?

A4 is approximately 2480 × 3508 pixels at 300 PPI.

Worked example: 210 mm ÷ 25.4 × 300 ≈ 2480 pixels wide.

What is Letter size in pixels at 300 PPI?

US Letter is 2550 × 3300 pixels at 300 PPI.

Is this image really 300 DPI?

Only if the file contains resolution metadata set to 300, and even then that number is a label. Effective print resolution is the pixel count divided by the physical print size.

Tools

How local processing works

When you choose a file, the browser reads it with the File API. Image bytes are parsed for pixel dimensions and optional density tags. PDF bytes are inspected with PDF.js and pdf-lib in this tab. Generated downloads are created here and verified before they are offered. Closing the tab discards the data.

Frequently asked questions

Does this site upload my files?

No. Image and PDF checks run in your browser. The application does not upload your file, filename, or file-derived measurements to a server.

Is a 300 DPI label required for a sharp print?

No. Sharpness comes from how many pixels you have for the physical size. A 300 DPI tag without enough pixels does not add detail. A file with no DPI tag can still print well if the pixel count is high enough.

What size can a 3000 × 4000 image print at 300 PPI?

A 3000 × 4000-pixel image can print at 10 × 13.33 inches at 300 PPI. Divide each pixel dimension by 300 to calculate the print dimensions.

What is A4 size in pixels at 300 PPI?

A4 is approximately 2480 × 3508 pixels at 300 PPI. A4 measures 210 × 297 millimetres, which is about 8.27 × 11.69 inches; multiply those inches by 300.

Will a printer definitely accept my PDF if this report looks fine?

No. This is a technical inspection of what the file contains, not a guarantee of acceptance. Printers have their own preflight rules, colour requirements, and bleed expectations.

Can you unlock a password-protected PDF?

No. Encrypted PDFs are reported as unreadable. This tool does not bypass passwords or permissions.