Any photo editor -- be it on the desktop, or on the web -- can reduce an image’s size. You can shrink images down as little or as much as you like. However, making an image bigger, well that’s a whole different matter. When you blow up a picture you can introduce all manner of problems, including blurring, general loss of sharpness, and jagged edges. That said, it is possible to increase a picture’s size without introducing these problems, if you know how. The trick is to use the right software. Two excellent free tools to try are A Sharper…
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