Add options in media setting page for images sizes
Description: A plugin that makes regenerating thumbnails even easier than before and more flexible.
This plugin generates unicode slug from title You're writing and replaces %postname% part of permalink.
Cleans up your WordPress installation by removing and regenerating thumbnails.
Boost WordPress performance: Faster localization, (on the fly) dynamic image resizing and CDN support for images.
Automatically regenerates your thumbnails on the fly when thumbnail sizes change.
Fix missing thumbnails in no time with few easy clicks. The plugin does the hard work.
AJAX Thumbnail Rebuild allows you to rebuild all thumbnails at once without script timeouts on your server.
Because sometimes you just want to revert your slugs to what WordPress thinks is best.
This plugin allows you to generate a new permalink when you change a post title.