Choosing and judging a test print area
If you're testing a crop of your image (rather than the whole thing), pick the most demanding part of the picture — the area that will most quickly reveal any problem.
What to include in the test area
Choose a section that contains a full tonal range together: - Highlights (bright areas where detail can blow out) - Shadows (dark areas where detail can block up or band) - Midtones and any critical, finely balanced tones — skin tones, subtle gradients, neutral greys, or delicate textured detail.
An area with skin tones or a smooth gradient is ideal, because these show colour casts and banding most clearly. If sharpness or the effect of enlargement is your concern, include some fine detail.
How to judge it
View the print in good, neutral light (ideally daylight-balanced), at the distance the final piece will be viewed from, and compare against your soft-proofed on-screen version: - Is anything too dark or too light overall? (Often a sign of screen brightness.) - Do highlights and shadows hold detail, or are they clipped? - Any colour cast, banding in gradients, or over-sharpening halos? - Does the paper texture suit the image?
Then
Adjust the file based on what you see, re-soft-proof, and order again if needed before printing at full size.