What is DPI, Resolution, and Actual Print File Size?

To better understand print quality requirements, let’s break down these key terms:

Resolution

Resolution describes the pixel dimensions of a digital image and is usually expressed as width × height.
For example, a screen resolution of 1920 × 1080 means the display contains 1920 pixels horizontally and 1080 pixels vertically.

DPI (Dots Per Inch)

DPI refers to the number of printed dots within one inch. The higher the DPI value, the sharper and more detailed the printed image will appear. Increasing DPI improves print clarity, especially for fine details and text.

What is DPI, Resolution, and Actual Print File Size?

Actual Print Size

Actual size means the physical dimensions of your design when printed.

For example:
If a design is created at 30 cm × 30 cm with a resolution of 200 DPI, and you enlarge it to 60 cm × 60 cm, the effective resolution drops to 100 DPI. This reduction can result in a noticeable loss of print quality.

Important Print File Guidelines

When uploading files for printing:

  • Ensure the design is created at actual print size
  • Maintain a minimum resolution of 150 DPI
  • Remember: resolution quality depends directly on the file’s physical dimensions

A high DPI value alone does not guarantee quality—both size and resolution must work together to achieve the best print result.

If you have questions or run into any issues, reach out to our support team via live chat or info@alerioprint.com