Photos are essential on our website, they help to capture the attention of our visitors. A photograph can be the trigger for a user to buy our product, but it can also cause the opposite effect.
Although today Internet connection speeds are getting faster, we must take into account the weight of our images, so it is convenient to optimize them and adjust their size/quality well, a task for which these recommendations will be useful.
There are many graphic formats for web pages, but in this article, we are going to focus on the optimization of images in JPG format, one of the most widespread in web development.
Adjust the quality of the JPG format
The size is decreased by adjusting the image quality and, in many cases, it does not imply a noticeable loss to the naked eye. You should always use High Contrast Images.
The lower the quality, the higher the compression, so the image will occupy less. We can do all this with any photo editing program.
Always start from the original file
The JPG format is a lossy graphics file, which means that every time we save we are losing quality compared to the original.
So, if we want to edit an image again, it is advisable to use the original file and not the one that we have previously saved.
Use Responsive Images
Implement responsive design techniques to serve different image sizes based on the user’s device and screen size. This helps maintain image quality without overloading mobile devices.
Adjust image size
The height, width, and even the dots per inch of the image are factors that affect the size of the file. So we must keep in mind that sometimes it is more advantageous to present an image at a smaller size than to lower its quality.
Focus more when reducing the size
If your image editor supports this filter, it will make the elements more prominent and attractive. However, we advise you not to abuse it excessively, because it also produces noise in the image and occupies more.
Implement lazy loading to load images only when they come into the user’s view. This technique reduces initial page load times.
Create thumbnails of the images
Sometimes it may be advisable not to use large images. Therefore, it is better to show thumbnails and let the user decide if they want to see them enlarged or not. This will make the page load faster and reduce data transfer.
Crop the area
With our graphic retouching program we can cut out only the part of the image that interests us and discard the rest. Not only will we save space, but we will also show what we want to highlight from it!
Optimize Alt Text
Use descriptive and meaningful alt text for images. Alt text not only helps with accessibility but also improves SEO.
Use additional image optimization program
Beyond the well-known Photoshop, there are many programs that we can use for image optimization tasks that are specialized to obtain better results than those offered by general-purpose graphic editing programs.
Remember that finding the right balance between image quality and file size is key. Always test the optimized images on various devices and network speeds to ensure a smooth user experience.