Downscaled PNG images lack compression

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  justfiveminutes · Member · Jan 28, 2009 at 6:45 pm

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

  Original version 1600×1200 – 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: (visible only to logged in users)

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  panaghiotisadam · Member · Jan 31, 2009 at 1:16 am

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  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.