Resolution Checker
A blurry image in print is a problem discovered late. Usually after the material has already been printed.
The minimum resolution for offset and digital printing is 300 DPI at the final size. That number is not a suggestion — it is the threshold below which the human eye starts to perceive degradation in printed material. For packaging, where visual quality is directly associated with the perceived value of the product, delivering artwork below 300 DPI means compromising the presentation before the product reaches the point of sale.
The most common misconception is confusing file size with resolution. A 5MB image may have insufficient resolution for print if it was saved at small dimensions. A 500KB image may be adequate if the physical dimensions are correct for the final output size.
For screen and digital, 72 DPI is sufficient. For large formats viewed at a distance, 100 DPI works. For packaging, books, and catalogs, 300 DPI is the minimum. For premium materials, 400 DPI may be required.