How to Regenerate Thumbnails or New Image Sizes in WordPress Documentation
By default when you upload an image to WordPress, it creates different sizes and saves them in the uploads folder. Many WordPress themes take advantage of this feature and define new image sizes, but the problem is that these new image sizes are only applied on the images you upload after activating the theme. To solve this problem you need to generate new sizes for all previously uploaded images. This process is often referred to as regenerating thumbnails.
How to Regenerate Thumbnail Images in WordPress
In the end, having inconsistent, or downright distorted images displaying on your WordPress website not only leaves you looking unprofessional to site visitors, it may lead to certain technical glitches that can affect site visitors’ user experience in a negative way. It is crucial to maintain consistency when it comes to your website’s thumbnail images. And, oftentimes the only solution is to regenerate them all to look the same.
How to Regenerate Thumbnails after changing the Thumbnail sizes in WordPress
There are times when you may want to change the thumbnail or featured image dimensions in your current WordPress theme or you may have planned to switch to a new theme. In both of these cases, you would feel the need of regenerating thumbnails, compatible to new dimensions. In this post, we have shared a plugin called Regenerate Thumbnails, which allows you to regenerate the new thumbnails after changing the thumbnail sizes in WordPress.