Images add attractiveness to websites and help viewers get information. They also help businesses promote their products and services on the web. Nevertheless, posting an image is not just finding it and putting it on a website. Some things like the size of the file, size of the image itself, its format, its accessibility and privacy issues may affect the way the image performs online.
Spending some time preparing your photos prior to posting them online will help you save time and create good experiences for your viewers. Whether it is a website for your business, blog posts or an online portfolio, here are some things that you should remember regarding your images.
Choose the Right Image Format
The selected format impacts the file size, image quality, and use of the image. There are various formats suited to different uses, so select your format based on what you are uploading.
Understand Common Image Formats
JPEG is a suitable format for photographs as it can keep file sizes small enough while maintaining decent visual quality. PNG is a convenient option for graphics that need transparent backgrounds or edges, like logos and interface icons, but the files will be much bigger in size if they contain complex photographs.
WebP and AVIF are modern image formats that are able to deliver high-quality visual content with effective compression. These formats are great for websites that feature many photographs of products, banners, or editorial content.
For instance, the photos of products on an online store could be stored using JPEG or WebP, while the logo could be stored using PNG due to its requirement of having a transparent background.
Check Image Dimensions Before Uploading
An uploaded photograph having very large dimensions is bound to take longer loading times but not necessarily improving its appearance on the site. What the appropriate dimensions are depends entirely on where the image will be located and viewed from.
Match Dimensions to the Display Area
Think about a blog post with pictures that measure 900 pixels in width. You may not have to upload a picture measuring 4,000 pixels in width since it will not be necessary for the visitor to look at it in detail. This may help you lower the file size of the images.
Website elements require different sizes. For example, a banner, a thumbnail image, and product image gallery must not have the same size automatically. Analyze your website and resize the images based on where they will appear on the website.
In case of a responsive website, you can also provide different sized images so that they can choose what to download depending on the screen size.
Optimize File Size Without Sacrificing Quality
The size of image files has a lot to do with website speed. If the images used are big in size, there will be more data to be downloaded and therefore slow the page down.
Compress Images Carefully
Compression reduces the amount of data needed to store and deliver an image. Lossy compression can produce smaller files by removing some image information, while lossless compression reduces file size without discarding that information.
The right approach depends on the image. A photograph used in a blog post may look excellent after moderate compression, while a product image with fine textures might need more careful adjustments. Always compare the optimized version with the original before publishing it.
For photographs saved as JPEG files, an online JPG compressor can help reduce file sizes before you upload images to your website. Choose settings that balance smaller files with acceptable visual quality, and avoid compressing the same image repeatedly because successive lossy exports can introduce additional quality loss.
Keep an original copy of important photographs whenever possible. This allows you to create new versions later without starting with an already compressed file.
Consider Website Speed and Loading Behavior
Even attractive, well-prepared images can affect website performance when they are delivered inefficiently. A page with many large images may take longer to display its main content, making it harder for visitors to browse comfortably.
Prioritize Important Images
The images that appear as soon as the page is opened need to be loaded fast. This is because the main banner or the main picture of the product is used to inform the visitors about the content on the page.
The images that appear below can use lazy loading technique that will make sure that the images are only loaded when visitors start scrolling near them. The reason behind using this technique is the fact that less number of pages will have to be loaded at the time of initial visits. Lazy loading should not be used for the primary image that loads the main content of the page.
It is also recommended to indicate the size of images on your website page.
Write Descriptive File Names and Alt Text
Preparing images properly also helps visitors and search engines understand what they contain. Descriptive filenames and meaningful alternative text make images easier to identify and improve accessibility.
Make Image Information Useful
Replace generic filenames such as IMG_4821.jpg with descriptive names like blue-running-shoes.jpg. Keep filenames concise, use hyphens to separate words, and describe the actual image rather than adding un
