How does Google's Page Speed lossless image compression work?

Question

When you run Google\'s PageSpeed plugin for Firebug/Firefox on a website it will suggest cases where an image can be losslessly compressed, and provide a link to download th

Answer 1

If you are looking for batch processing, keep in mind trimage complains if you don't have Xserver avail. In that case just write a bash or php script to do something like

";
    exec("find /home/example/public_html/images/ -type f -name '*.jpg' -exec jpegoptim --strip-all {} \;");
    echo "Processing pngs
";
    exec("find /home/example/public_html/images/ -type f -name '*.png' -exec optipng -o7 {} \;");
?>

Change options to suite your needs.