Have you ever stacked a couple of images in the same document, and then wanted to place the two layers side by side but the document wasn’t large enough to show both images? Normally, you’d go to Image>Canvas Size, but then you have to guess on the new dimensions. Try this: Drag out the right edge of the document window so you can see the canvas area around the image. Switch to the Move tool (V), and drag the top layer off to the side, even if you can’t see it anymore. Choose Image>Reveal All. Now the canvas will be expanded to perfectly fit any “out-of-bounds” pixels. So easy and quick!
This tip previously published in Colin Smith’s Photoshop Tips column, in the April, 2020 issue of Photoshop User magazine.