Question 1

What is pixel density?

Accepted Answer

Pixel density describes how tightly packed pixels are on a screen, affecting image sharpness and clarity.

Question 2

What resolution do I need for printing?

Accepted Answer

For high-quality prints: 300 DPI is standard for photos and magazines, 150 DPI works for viewing at arm's length, and 72 DPI is only suitable for web/screen display.

Question 3

Is DPI the same as PPI?

Accepted Answer

No. PPI refers to screen pixels, while DPI refers to printed dots. An image might be 72 PPI on screen but printed at 300 DPI for quality output.

Question 4

How do I calculate print size from pixels?

Accepted Answer

Divide pixel dimensions by DPI. A 3000×2000 pixel image printed at 300 DPI = 10×6.67 inches. At 150 DPI, the same image prints at 20×13.3 inches.

Pixel Density Calculator - Free Online Tool

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