Digital & Data

DPI y PPI

Definición

DPI (puntos por pulgada) mide la resolución de impresión; PPI (píxeles por pulgada) mide la resolución de pantalla; ambos describen la densidad espacial de elementos de imagen.

Explicación

Print at 300 DPI is considered photo quality; newspaper print runs at 85–150 DPI. Apple coined 'Retina display' for screens above ~300 PPI, where individual pixels become imperceptible at normal viewing distance. The iPhone 15 Pro screen is 460 PPI. Confusingly, 'DPI' is widely misused to mean PPI in software settings—they are conceptually distinct but numerically interchangeable in digital-to-print workflows.

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