Step 1: Open the photo in PS, select the lower thigh of the model with the rectangular box selection tool (note: clothes cannot be selected, and the rectangular tool should be selected to the canvas edge, including the left and right edges and the lower edge), and press Ctrl+J to copy.
Step 2: Select the layer you just copied, press Ctrl+T to open the free transformation, and move the midpoint of the bottom edge downward (note: the length of the movement is the part where the leg is stretched. If you want your legs to be long, move them a little longer, but not too long, as shown below.
Step 3: Because a part of the picture is moved to the outside of the canvas and lost after being stretched freely, this step should also display the outside of the canvas, and select "Image" in the menu bar >; Just "show all".
Extended data:
Adobe Photoshop, referred to as "PS", is an image processing software developed and released by Adobe Systems. Photoshop mainly deals with digital images composed of pixels.
With its numerous editing and drawing tools, we can edit and create pictures effectively. PS has many functions, including pictures, graphics, text, video, publishing and so on.