wp_upload_rename

This plugin automatically converts language accent characters to non-accent characters in filenames when uploading to the media library.

Seamlessly integrates FancyBox lightbox into your WordPress blog: Upload, activate, and you're done. Additional configuration optional.

Apply image or text watermarks to new uploads and existing Media Library images.

"Crop Thumbnails" made it easy to get exacly that specific image-detail you want to show in your featured image or gallery image.

Improvements for responsive images in WordPress.

This plugin lets you create custom image sizes for your site. Override your theme sizes directly on the Media settings page, regenerate thumbnails, an …