In most online stores, it’s common for product images to have varying sizes and proportions. This inconsistency often arises because the images we upload come from different sources: manufacturers, photographers, scanned materials, or even photos we take ourselves with our smartphones. As a result, the images may not fit perfectly into their designated slots on product pages, creating a less-than-ideal visual presentation.
Smart Image Resize is here to solve this issue for WooCommerce stores. This plugin ensures that product images —and much more— are uniform in size without the need for manual editing. That’s right, no more resizing or cropping images one by one. In this article, we’ll explore all the features of this must-have plugin.
What Is Smart Image Resize?
Smart Image Resize is a WordPress plugin designed to work seamlessly with WooCommerce. Its main function is to optimize the visual presentation of your products by standardizing all images, saving you valuable time. With Smart Image Resize, your product photos will automatically become uniform in size, eliminating the need to crop or resize them manually.
The plugin can be used right out of the box with no complex configuration. Its Lite version offers features like:
- Removing unwanted white spaces around products.
- Customizing background colors.
- Compressing thumbnails to significantly improve page loading speeds.
- Managing which images need resizing.
- Processing up to 150 images.
While the 150-image limit may be insufficient for most stores, it provides an excellent way to test the plugin and evaluate its results. If the Lite version performs as promised, upgrading to the PRO version becomes a must. The PRO version removes all image limits, converts images to .JPG format to reduce file sizes (a crucial feature for handling larger, heavier file types like .PNG or .BMP), and unlocks additional features to further enhance your store.
Smart Image Resize PRO is included for free in our WordPress Maintenance Plan
But even better than that, Smart Image Resize Pro can convert all your images (including .JPG files) to the modern WebP format —a feature I highly recommend—for significantly faster page loading speeds. Additionally, the PRO version includes a (beta) feature for adding watermarks, which is ideal for protecting your photos from theft. For example, you can overlay your store’s logo as a watermark. The plugin processes each image and, if desired, also applies the selected watermark automatically.
As is often the case, PRO users also enjoy priority support (money talks, after all).
Smart Image Resize Dashboard
In keeping with the user-friendly trend of modern plugins, the Smart Image Resize dashboard is clear, precise, and refreshingly straightforward. As you can see, the options are “basic” and laid out in an intuitive way.

Available Options Are
Enable Resizing
Always keep this ON (otherwise, you won’t benefit from automatic image adjustments).
Images
By default, Product Images is selected, which makes sense as it’s the primary focus and purpose of this plugin. Additionally, you can check Category Images to apply the same features to product category images.
Trim Whitespace
Enable this option to remove excessive white space around your product photos.
Background Color
When removing transparency from .PNG files, the default background color is white. Here, you can choose a different color if desired.
Add Watermark
As mentioned earlier, the plugin allows you to add a watermark or logo to your images.
Optimization
This controls the level of compression applied to your images. Higher compression results in smaller file sizes but can also lead to blurriness or pixelation. The default compression is set at 5%, and we recommend not exceeding 10%, as image quality is critical for boosting sales in an online store.
Convert to JPEG
This option converts uncompressed formats like .PNG to the classic optimized .JPG format. It’s generally recommended to enable this unless you need product images with transparency, which is rarely necessary in most cases.
Enable WebP
We strongly recommend enabling this feature for the reasons outlined earlier:
- WebP reduces file sizes by up to 90% compared to .PNG without losing quality.
- It also offers better compression than .JPG while maintaining image quality.
Additionally, the plugin ensures compatibility by serving .JPG and .PNG images to browsers that don’t support WebP (a rare case, often due to outdated devices).
Advanced
Here, you can choose to apply the plugin’s functionalities to thumbnails and various standard WooCommerce image sizes. By default, all sizes are selected, and we recommend keeping it that way to achieve optimal image uniformity.
Don’t forget to save your changes!
Regenerate Thumbnails Tab
This tab provides the option to install another plugin developed by the same creators to handle thumbnail regeneration.

Conclusion
Smart Image Resize is as practical as it is powerful. It saves us countless tedious hours of organizing our store’s images. If your goal is to tidy up product photos, remove excessive white space, reduce file sizes, and crop all images to the same dimensions, this plugin has you covered. And as a bonus, it can even add a watermark to protect your public materials. If this plugin were human, we’d definitely give it a high five!
For a single site, the PRO version of Smart Image Resize costs USD23.40 at the time of writing. While there is a free “lite” version available, it has a processing limit of just 150 image files, making it suitable only for stores with a very small inventory.
This brings us to the end of our guide and review of Smart Image Resize, a plugin we highly recommend for optimizing your WooCommerce store’s images with almost no effort on your part.
We’d love to hear your thoughts! Feel free to share your impressions in the comments below. Best of luck with your business ventures, and thank you for reading!
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