dpi (dots per inch)

A unit of resolution for a printer, monitor, or scanner. It literally indicates the number of dots that the device can place in a inch. Higher values give better, smoother output.

For example, a computer monitor is typically 72 dpi, most common laser printers can achieve 300 dpi or 600 dpi.

When preparing artwork for printing, you should ensure that:

• any non-vector line-art is prepared at 1200 dpi, and
• photographs and other smoothly-changing images are prepared at 300 dpi.

If they are stored at lower resolutions they may appear rough, jagged, and unreadable.

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