Speed up your website and boost your SEO by compressing old & new images and PDFs. Compatible with any gallery, slider or ecommerce plugin.
Adaptive images plugin transparently resizes your images, per device screen size, in order to reduce download times in mobile environments.
Improve your site's SEO with the best solution for completely Search Engine Optimizing images and dynamically fixing HTML validation errors.
Compress your images by up to 90% and make your website load faster. Improve your SEO. Reduce your bandwidth.
WP ImageEngine is an intelligent image CDN for optimizing, compressing, resizing and delivering images according to the screen- or viewport size.
This plugin allows you to optimize your WordPress images through the CheetahO API. Your website will be faster, keeping the images high quality.
Magic SEO Image For NextGen helps you improve SEO of your images by easing bulk images ALT changing for NextGen gallery
THIS PLUGIN IS AN OLD UNSUPPORTED VERSION, FOR NEW VERSION SEE SEO Image Tags (https://wordpress.org/plugins/seo-image-alt-tags/)