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Chapter 4. Super Size Me: Resizing and C... > Making Your Photos Smaller (Downsizi... - Pg. 110

The Photoshop CS2 Book for Digital Photographers Making Your Photos Smaller (Downsizing) There's a different set of rules we use for maintaining as much quality as possible when making an image smaller, and there are a couple of different ways to do just that (we'll cover the two main ones here). Luckily, maintaining image quality is much easier when sizing down than when scaling up (in fact, photos often look dramatically better--and sharper--when scaled down, especially if you follow these guidelines). Downsizing photos where the resolution is already 300 ppi: Although earlier we discussed how to change image size if your digital cam- era gives you 72-ppi images, with large physical dimensions (like 24x42" deep), what do you do if your camera gives you 300-ppi images at smaller physical dimensions (like a 10x6" at 300 ppi)? Basically, you turn on Resample Image (in the Image Size dialog under the Image menu), then simply type in the desired size (in this example, we want a 6x4" final image size), and click OK (don't change the Resolution setting, just click OK). The image will be scaled down to size, and the resolution will remain at 300 ppi. IMPORTANT: When you scale down using this method, it's likely that the image will soften a little bit, so after scaling you'll want to apply the Unsharp Mask filter to bring back any sharpness lost in the resizing (go to Chapter 13 to see what settings to use). 110 Chapter 4 Resizing and Cropping