Every day, millions of people need to change an image from one format to another. Maybe your website only accepts PNG files. Maybe your phone creates JPEG photos, but your design software needs PNG. Maybe you have a logo that needs transparency, and you currently have it as a JPG. This problem—converting between image formats—is one of the most basic yet confusing tasks in digital work. The reason it is confusing is that these two formats are fundamentally different. They work like two different languages. A JPG to PNG converter is a translator between these languages. But here is what most guides do not tell you: conversion is not magic. You cannot improve a bad JPG by converting it to PNG. You cannot add transparency that was never there. You cannot recover lost data. This guide teaches you exactly what happens when you convert images, why some conversions work better than others, and when you should avoid conversion altogether. By the end, you will know more about image formats tha...