I'm a complete novice to Photoshop CC and I feel like I'm missing something very obvious, but I can't find the answer. I want to re-size my
1024 x 748 image to
1024 x 768. When I look online, it simply refers me to the "Constrain Proportions" option box to accomplish this - for example, like in this pic:
However, when I go to the Image Size option, all I get is this:
I have no option to constrain proportions or not, and if I try to resize my height to 768, for instance, it tries to scale the width along with it, which I do not want and stretches the image. Am I missing something very obvious? Thanks.