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Downscaled PNG images lack compression

  1. justfiveminutes
    Member

    I have a PNG image that gets downscaled (correctly) to fit the width of my theme, but the resulting file size is much larger than the original image:

    Downscaled version 480x360 - 675k: http://justfiveminutes.files.wordpress.com/2009/01/2009-01-22_reflections_patterns.png?w=480&h=360

    Original version 1600x1200 - 150k:
    http://justfiveminutes.files.wordpress.com/2009/01/2009-01-22_reflections_patterns.png

    I guess you could save some bandwidth by compressing the downscaled image (I assume this only affects PNGs).

    The blog I need help with is justfiveminutes.wordpress.com.

  2. If you edit your image to turn it into a gif optimized for the web, this won't happen, and it will load fast. I did that to your image, and the resultant ?w=460 version was a mere 23.3 KB.

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