Keep a little know-how close

Good pixels, explained.

Small, practical guides to making better choices with your images.

Choose a format for photos, graphics and transparent images.

Understand quality, pixel dimensions and best-effort target sizes.

Keep the whole image or fill a new shape deliberately.

Choose a grid, spacing and labels for a useful visual overview.

Choose square, landscape or portrait crops, understand pixel coordinates and preserve the area you need.

Understand what canvas re-encoding removes, its quality tradeoffs and why metadata inspection has limits.

Make a multi-page image PDF with paper size, orientation, page order, margins and quality set in your browser.