Pulverizr will smash your images down to size. It uses a number of free, and often times open source, programs to optimize and compress image files while still retaining their original appearance.
While modern image editor's, like Photoshop's, compressors do a decent job at cutting the extra fat around images, they sometimes leave behind extras you probably don't want or need. For example, EXIF data in JPEGs, color-correction data in PNGs and redundant frames in GIFs.
Pulverizr uses a handful of compressors to perform a number of lossless compression routines to squeeze every last bit out of your images (see Dependencies). Note this software isn't 100% stable yet. You may notice differences in images that may contain certain color profiles that can be stripped out by the compressors. Any strangeness you see, please report it!
If you're on Ubuntu, almost all of these dependencies can be retrieved using apt. Although Pulverizr works best with all its dependencies, it will gracefully fail when it doesn't find a compressor it's looking for.
The compressors Pulverizr uses are admittedly a bit obscure and sometimes difficult to install on all platforms.
On Mac OSX
If you're using homebrew, install the following packages:
brew install gifsicle libjpeg optipng pngcrush
To install the dependencies on Ubuntu:
apt-get install gifsicle libjpeg-progs optipng pngcrush
Good luck to you, fine sir.
npm install pulverizr
Since I'm too lazy right now to go through everything in detail, here's what you'll see if you run "pulverize -h".
Note: Be sure to test before you overwrite your images by using
Usage: pulverize [OPTIONS]... -- FILES... Smash your images down to size. Pulverizr uses several compressors/optimizers to squeeze every last bit out of your images. If Pulverizr detects an optimization, it overwrites the old image with the newly optimized one. (Note: due to the way the args are parsed, two hyphens -- are required after binary flags if they appear before file paths) Options: General: -a, --aggressive uses more aggressive compression algorithms (takes longer, works better) --dry-run print summary but don't actually modify files -q, --quiet pulverizer will stfu -v, --verbose verbose mode Traversing: -R, --recursive scan directories recursively Other: -h, --help print this handy dandy help page --version print program version
pulverize foo.png bar.png baz.png qux.png
pulverize -R -- /var/www/mysite.com/images
Aggressive Recursive Directory
pulverize -aR -- /var/www/mysite.com/images
See Dependencies, and Smush.it
Copyright (c) 2010, Benjamin Truyman All rights reserved.
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