Tools / DPI & Resolution Checker
Upload an image and pick a print size. We read the file's actual pixel dimensions and calculate the real DPI at that size — the number that decides whether it prints sharp or soft.
Click to upload or drag an image here
JPG, PNG, WebP or TIFF · processed on your device, never uploaded
Upload an image to see its resolution and print-quality verdict.
| DPI at final size | What it means |
|---|---|
| 300+ | Pass Sharp at standard viewing distance for commercial print. |
| 150–299 | Warn Usable for large format viewed from further away; risky up close. |
| Under 150 | Fail Will look soft or pixelated at this size. |
It checks whether an image's pixel dimensions are enough for a chosen print size and DPI target (150 / 300 / 600), based on the file's actual pixel count — not a guess.
It calculates effective DPI from the image's real pixel dimensions divided by your intended print size — it does not read an EXIF/metadata DPI tag. That matters because many AI-generated or web-exported images carry no DPI tag at all, or a meaningless default (often 72), even when the pixel count is genuinely high enough to print well.
Worked, verified examples using the tool's own preset sizes: a business card (3.5 × 2 in) at 300 DPI needs at least 1050 × 600 px; a letter flyer (8.5 × 11 in) at 300 DPI needs at least 2550 × 3300 px; an 18 × 24 in poster at 150 DPI needs at least 2700 × 3600 px — not the 5400 × 7200 px that 300 DPI would demand. 150 DPI here is an illustrative target for large-format prints viewed from a distance, not a universal print requirement — check your printer's own spec sheet for what they actually need.
Not yet. The DPI checker's upload only accepts image files (JPG, PNG, WEBP, TIFF) — it does not open a PDF. For a PDF's color mode (CMYK vs. RGB), the separate PDF Color Mode Checker handles that, but it doesn't check DPI either.
No. This checks pixel density only. Color accuracy, bleed/trim, paper stock, and the printer's own calibration are separate factors this tool doesn't see.
Resolution too low for the size you need? A designer can rebuild it at full print resolution instead of just stretching the pixels you have.
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