What I would suggest is zooming in to 100% so you can really judge details. And you see that we get the ability to reduce noise in the image so that as we enlarge it, it doesn't get noisy or grainy. I'm going to go with the default here for a moment, Preserve Details Enlargement. We also have the Bicubic Smoother which is really good if you have to enlarge an image to a very large size and you want it to softly blur it so it doesn't look pixelated. You'll notice here for example that we have Preserve Details and a newer method called Preserve Details 2.0. But what you're most likely going to want to take advantage of is the ones that are specifically labeled for enlargement. It is going to be used for both upscaling and downscaling. Automatic is designed to be sort of leave it and forget it. ![]() What you want to pay attention to is the Resample method. Now when we do this, it's going to attempt to resize the image and the preview window here will show you a simulation of what that's going to look like so you can check the results and see if you're getting adequate details. So let's check the box here for Resample and we'll type in the target resolution. Now you'll notice in doing this that that drops the resolution down. So in order to get there, I'm going to resize to 17 and let the width and height stay constrained. ![]() I need this to be about 17 inches wide and about eight and a half inches tall. And unfortunately, I need a larger output. And I see that this is about a six inch by three and a half inch print. So let's go ahead and reassign this to a resolution of 300 pixels per inch. This will show you the existing image and resolution. Inside of Photoshop, you can choose Image, Image Size. You can't keep blowing up an image forever. Oftentimes this works pretty well, but it is not a never ending fountain of pixels. This means that the computer is going to interpolate the information and do its best to come up with new pixels. Now, there are many ways to go about resizing an image, but ultimately you have to remember that when you're up-resing, you're creating new pixels that don't originally exist. A lot of times you'll end up with an image that's the wrong resolution.
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