Every day, billions of images are uploaded to the internet. A single smartphone photo might be 5 megabytes. A professional camera photo might be 20 megabytes or more. When you try to email that photo, upload it to a website, or send it via messaging app, the file size becomes a problem. Email providers limit attachments to 25 megabytes. Website forms often cap uploads at 10 megabytes. Mobile users on slow 4G connections watch the upload bar crawl. This is where compress image tools become essential. Compression is the art of making a file smaller without destroying the visual quality. It is not as simple as it sounds. Compress too aggressively, and your photo looks like pixelated garbage. Compress too conservatively, and the file is still too large. In this comprehensive guide, we will explain the science of image compression, the difference between lossless and lossy compression, and how to achieve the perfect balance between file size and quality for your specific use case. 1. What D...