When to use 300 dpi and 72 dpi?

Out of context: Reply #19

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    ESPtype,
    I'm using a different number of pixels because the math is clearer...

    Consider:
    144px image at 72dpi is 2" across.
    and
    144px image at 96dpi is 1.5" across.
    Both contain 144px across — just the mosaic is made of larger or smaller squares.

    When you're linking an image in a website you specify its width in pixels, not inches. Resolution is actually *kind* of independent of this equation. Right?
    You can link a PNG that's on a 2 inch canvas in photoshop at 72dpi or a or a 1.5 inch canvas at 96dpi, but once it hits your webpage the res doesn't really matter.

    Theoretically you could set your jpegs to 300dpi for web and still be fine — your browser won't care, it's only reading the actual pixel dimensions.

    • nice. put the rgb or cmyk question that clear and we are done.invisiblechamber
    • wrong buddy
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