Recommendation for compressing JPG files with ImageMagick

Question

I want to compress a JPG image file with ImageMagick but can\'t get much difference in size. By default the output size is bigger than the input. I don\'t know why, but afte

Answer 1

Just saying for those who using Imagick class in PHP:

$im -> gaussianBlurImage(0.8, 10);      //blur
$im -> setImageCompressionQuality(85);  //set compress quality to 85