Christian Gatti

Images and Media is one of the several NutsForPress plugins providing some essential features that WordPress does not offer itself or offers only partially.  
Images and Media allows you to:
<ul>
<li>define an image size threshold and automatically resize on upload the images exceeding that threshold, without involving the original image</li>
<li>prevent GIF images to be resized (by this plugin and by WordPress too) to avoid risk of breaking their animation</li>
<li>define a JPEG compression level and automatically compress JPEG on upload to that compression quality, without involving the original image</li>
<li>bulk rebuild thumbnails (size and quality) from the original image and with WordPress native functions, filters and hooks</li>
<li>bulk rebuild missing PDF preview images</li>
</ul>
Images and Media is full compliant with WPML (you don’t need to translate any option value)
Take a look at the others <a href="https://wordpress.org/plugins/search/nutsforpress/" rel="ugc">NutsForPress Plugins</a>
Whatever is worth doing at all is worth doing well
<h3>Translations</h3>
<ul>
<li>English: default language</li>
<li>Italian: entirely translated</li>
</ul>
<h3>Credits</h3>
<ul>
<li>Very many thanks to <a href="https://www.dkr.srl/" rel="nofollow ugc">DkR</a> and <a href="https://www.sviluppoeuropa.it/" rel="nofollow ugc">SviluppoEuropa</a>!</li>
</ul>

NutsForPress Images and Media

NutsForPress Images and Media is an essential tool for having your images and your meta in perfect order.

Risto Niinemets

junkcoder

AJAX Thumbnail Rebuild allows you to rebuild all thumbnails on your site. There are already some plugins available for this, but they have one thing in common: All thumbnails are rebuilt in a single step. This works fine when you don’t have that many photos on your site. When you have a lot of full-size photos, the script on the server side takes a long time to run. Unfortunately the time a script is allowed to run is limited, which sets an upper limit to the number of thumbnails you can regenerate. This number depends on the server configuration and the computing power your server has available. When you get over this limit, you won’t be able to rebuild your thumbnails.
Why would you want to rebuild your thumbnails? WordPress allows you to change the size of thumbnails. This way, you can make the size of thumbnails fit the design of your website. When you change the size to fit for a new theme, all future photos you are going to upload will have this new size. Your old thumbnails won’t be resized. That’s where this plugin comes into action. After changing the image sizes, you can rebuild all thumbnails. But instead of telling the server to recreate all thumbnails at once, they are rebuilt one after another. Rebuilding thumbnails for one photo won’t take all too long, so you won’t run into any script timeouts. Note that you still have to wait until all thumbnails have been rebuilt. If you close the page before the task is completed, you have to start all over again.
You can also select the thumbnail sizes you want to rebuild, so that you don’t need to recreate all images if you’ve just changed one thumbnail-size. You can also choose to only rebuild post thumbnails (featured images).
This plugin requires JavaScript to be enabled.
Contributions are welcome at <a href="https://github.com/breiti/ajax-thumbnail-rebuild" rel="nofollow ugc">Github</a>

AJAX Thumbnail Rebuild

AJAX Thumbnail Rebuild allows you to rebuild all thumbnails at once without script timeouts on your server.

NutsForPress Images and Media vs AJAX Thumbnail Rebuild