Pngout can be installed with one-click from the settings page.If none of that works, there is a cloud option that will work for any site.If you need a version of this plugin for cloud use only, see EWWW Image Optimizer Cloud.
If you need assistance using the plugin, please visit our Support Page. All optimized images are stored in the database so that the plugin does not attempt to re-optimize them unless they are modified.
On the Bulk Optimize page you can view a list of already optimized images.
You may additionally choose to remove individual images from the list, or use the Force optimize option to override the default behavior.
The re-optimize links on the Media Library page also force the plugin to ignore the previous optimization status of images.
All images created by the built-in WP_Image_Editor class will be automatically optimized.
Current implementations are GD, Imagick, and Gmagick.Images optimized via this class include Animated GIF Resize, Buddy Press Activity Plus (thumbs), Easy Watermark, Hammy, Imsanity, Media Press, Meta Slider, My Arcade Plugin, OTF Regenerate Thumbnails, Regenerate Thumbnails, Simple Image Sizes, WP Retina 2x, WP RSS Aggregator and probably countless others.If you are not sure if a plugin uses WP_Image_Editor, post your question in the support forums.The EWWW Image Optimizer is a Word Press plugin that will automatically optimize your images as you upload them to your blog. While the optimization is technically lossless, you will not be able to properly edit the animation again without performing an --unoptimize operation with gifsicle.It can optimize the images that you have already uploaded, convert your images automatically to the file format that will produce the smallest image size (make sure you read the WARNINGS), and optionally apply lossy compression to achieve huge savings for PNG and JPG images. By default, EWWW Image Optimizer uses lossless optimization techniques, so your image quality will be exactly the same before and after the optimization. The gif2png and jpg2png conversions are also lossless but the png2jpg process is not lossless.The lossy optimization for JPG and PNG files uses sophisticated algorithms to minimize perceptual quality loss, which is vastly different than setting a static quality/compression level.