ShortPixel Resize Images feature can reduce your hosting storage by changing the sizes of your uploaded pictures. Each time you add an image WordPress automatically generates a number of thumbnails which are deployed in your webpages. Your original pictures are rarely shown to your visitors, but they take a lot of your hosting space.
Here is how our Resize Image function works.
There are two resize options in our plugin settings menu. Keep in mind that the original aspect ratio is preserved in both cases.
Resize images – option 1
The first resize option is the most popular. It takes the small side of an image and it reduces it to make it equal or greater than the value set by user.
For example, if you set the resize dimensions at 1000×1200, an image of 2000x3000px will be resized to 1000x1500px while an image of 3000x2000px will be resized to 1800x1200px
Important: the resized image cannot be smaller than your largest thumbnail so you still can regenerate your thumbnails afterwards if you need to.
Resize images – option 2
The second resize option takes the big side of the image and it makes it equal to the value you set. Sizes will be smaller or equal to the corresponding value.
For example, if you set the resize dimensions at 1000×1200, an image of 2000x3000px will be resized to 800x1200px while an image of 3000x2000px will be resized to 1000x667px
This resize option is less popular because: (a) you cannot regenerate all thumbnails dimensions and (b) the resulted images don ‘t fill sometimes their placeholder.
If you are not sure which option is better for your user case, please test it on a few images from your WP Media Library. Keep Image backup option active, in case you are not pleased with the resize results.