A digital photo is described in pixels, but it might confuse someone who is more experienced with centimeters or inches. It is also important when you need to get a specific image size (e.g. 6×4 inches) with a specific resolution (e.g. 300 DPI). It won’t take much of your effort apart from choosing a desired size and DPI. As soon as you do it, ImageConverter Plus will adjust the required image size automatically.