Here is a quick and easy beginner guide on how to create custom image sizes in WordPress. Instead of writing a long introduction that no one really wants to read let’s get right to the different possible solutions and talk about why it’s so important to be able to do this and what the differences are between the possible methods after. So here it is: the easiest and fastest tutorial on how to create custom image sizes in WordPress. Scroll down below to find the tutorial!
Firstly, let’s quickly go over why it is so important to be able to do this. Normally, WordPress has its own limited default image sizes. Therefore when you upload an image, you create an extra file in this odd size. When you create your own custom image sizes you can save hours of time editing your images within WordPress, and just automatically generate them. Using precisely sized images will improve load times and with that your SEO ranking.
There are a couple of ways to create custom image sizes in WordPress.
We highly recommend you get the Jixxio Media Manager plugin to help you out with this and any other future media related topics. It is quick and easy to use and allows you to create custom image sizes in the most efficient way. If you do not have $20 dollars to spend you can go through the process of coding as described in step two. If you did decide to grab the Jixxio plugin they have a great FAQ where they explain very clearly step by step how to do everything their plugin provides. Here is their explanation for How to create custom image sizes in WordPress:
Step 1. Go to Register Image Sizes. You will see an overview of the registered image sizes and you can also create your own custom image sizes here.
Image Size Name: Enter a unique name*
Width and Height: Resizes the image file to your desired pixel format, without stretching or leaving a blank space.
Crop: Selecting the crop option will cut out an area of your image, from the middle, to the size of your selected width and height.
Step 2: Click Save Changes to register the image size.
Step 3: IMPORTANT: After creating an image size, you MUST run Regenerate Thumbnails.
*NOTE: No spaces or special characters allowed. Only letters, numbers, minus signs and underscores. Always check the name in the table before using it to avoid confusions.