Content-Aware Scale (Protect Skin)

Stretch the background, not the hero.

The Workflow

1. Make a rough selection around your character (Lasso Tool).
2. Go to Select > Save Selection. Name it “Hero”.
3. Deselect (Ctrl+D).
4. Go to Edit > Content-Aware Scale.

The Fix

In the top toolbar, look for the Protect dropdown. Select “Hero”. Now, when you drag the handles to stretch the image, Photoshop will stretch the sky, ground, and empty space, but leave your character pixels perfectly untouched.