Using weighted optimization


    Weighted optimization lets you smoothly vary optimization settings across an image using masks from text layers, shape layers, and alpha channels. This technique produces higher-quality results in critical image areas without sacrificing file size. With weighted optimization, you can produce gradual variations in GIF, PNG-8, and WBMP dithering, lossy GIF settings, and JPEG compression. Weighted optimization also lets you favor colors in selected image areas when you generate a color table.

    Image without weighted optimization (left), and with weighted optimization on text layers and vector shapes (right)
    Image without weighted optimization (left), and with weighted optimization on text layers and vector shapes (right)

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