This tool resizes PNG images to any size. It only has three configuration options – the new width and height of the image, and the ratio preservation option (also known as aspect ratio lock). If this option is on, then resizing one of the dimensions will proportionally adjust the other dimension so that the width/height ratio stays constant. For example, if the input image is 800×600px and you set the new width to 400px, then the height will be automatically downsized/downscaled to 300px (because 800/600 is 1.33 and 400/300 is also 1.33), but if you set the new width to 1600px, then the heigh will be automatically upsized/upscaled to 1200px. You can also resize the PNG using your mouse interactively by dragging it by the edges. Png-abulous!