How to Compress Photos
This wikiHow teaches you how to compress a photo to make it take up less space on your hard drive. Compressing photos is often necessary before sending them via email or uploading them to your website. You can compress photos on both Windows and Mac computers by using a free website, or you can use your computer's Photos app to compress an image to a smaller size. Keep in mind that there is no way to compress a photo while retaining the photo's original quality.