Image guides

Choose settings with the trade-offs in view.

Practical notes on image formats, quality, dimensions, cropping, metadata, color, and web publishing.

FORMATS

JPEG, PNG, or WebP? Choose by image and use

Compare JPEG, PNG, and WebP by transparency, image detail, and intended use before converting or compressing a raster image.

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FILE SIZE

Compress an image without guessing at quality

A practical workflow for reducing image file size while checking artifacts, dimensions, and format trade-offs.

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DIMENSIONS

Resize an image without stretching its subject

Learn the difference between pixel dimensions and display size, how to preserve aspect ratio, and why enlargement does not restore detail.

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FRAMING

Crop an image with a clear focal point

A practical crop workflow covering subject placement, pixel bounds, aspect ratios, and keeping an untouched source file.

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IDENTIFICATION

Add a readable text watermark to a copy

Place a text mark with enough contrast to read while avoiding the main subject, and understand what a watermark cannot protect.

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COLOR

Use an extracted image palette as a starting point

Learn why sampled image palettes are approximate, how to inspect an individual pixel, and how to check contrast in the final interface.

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PRIVACY

What local image processing means in a browser

See how this site handles selected images, what local browser processing can and cannot promise, and why canvas exports may not preserve embedded metadata.

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PUBLISHING

Prepare images for a web page

A practical checklist for dimensions, format, file size, descriptive alternatives, and the context where a web image appears.

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