From numbers to print.

Choose the question you need to answer. Each guide links to tools and examples you can try.

10 guides available

Relate pixels, PPI and physical size using a 3,000 × 2,000 pixel example. Check print dimensions while keeping the image proportions.

Calculate A4 at 150, 300 or another resolution, understand rounding and compare its dimensions with Letter paper.

Distinguish image resolution from printer dots. See how PPI changes print size without creating extra image detail.

Check paper size, 100% print scale and a measured line on the output. Find settings that change size before using final materials.

Distinguish outer page margins from gaps between pieces. Calculate usable space in millimetres or inches and check printer limits.

Calculate rows, columns and rotation using your own sizes. Compare paper formats without assuming commercial label sheet compatibility.

Check 85 × 55 mm cards and a 3.5 × 2 inch example. Compare uniform grids on A4 or Letter paper.

Distinguish trim size, bleed and safe area. Check your print provider’s requirements and do not mistake outlines for a press-ready design.

Understand the approximate 141.4% scale and paper size rounding. Do not apply this ratio to Letter or Tabloid without calculating it.

Check size, position, margins and gaps on plain paper. Inspect the physical output before printing on your final material.