When resizing an image for use on the Internet, you must consider both the file size and the dimensions of the image. For best results, the file size should be as small as possible without sacrificing too much image quality. This helps the page load quickly and not consume too much data for the user. In terms of dimensions, the image should be the appropriate size for the space where it will be displayed on the webpage. For example, if the image is used as a banner at the top of the page, it should be the same width as the page itself and an appropriate height. To resize an image for the web, you can use a photo editing program or an online tool that allows you to adjust both the file size and dimensions of the image. The specific steps vary depending on the program or tool you use, but in general you need to open the image file and then select the “Resize” or “Scale” option from the program menu. This opens a dialog box or other interface where you can specify the new size for the image as well as the target file size or image quality. After you set the new size and file size for the image, you can save the resized version to a new file or overwrite the original image. It’s important to note that resizing an image for the web can affect its quality, so you should be careful not to make the image too small or stretch it too much.
Here are a few online tools you can use right away: