Resize Images Without Stretching

Photo dimensions matter more than people realize. A 4000-pixel-wide photo on a website wastes bandwidth and slows the page. The same photo at 1200 pixels looks identical on screen but loads three times faster. Resizing is the cheapest performance improvement you can make.

Type the new width, height, or scale percentage. Lock aspect ratio (the chain icon) and you only need to set one dimension; the other adjusts to keep the photo from stretching. Common presets are right there: 1920×1080, 1280×720, square crops for Instagram, 800px for blog posts.

For physical print, switch to inches or centimeters and set DPI. 300 DPI is what print shops want, 72 DPI is what shows on screens.