Working with Resolution-Independent Graphics

Unlike pixels, which are dependent on the document’s resolution to display in good quality, vector graphics are resolution-independent. This means they can be scaled up without losing quality—and the better your output device, the better the quality of the graphics. Applications such as Adobe Illustrator create vector graphics by default, whereas in Photoshop you have to make that decision.

To compare pixels and vectors, I used the Shape tool to create two graphics (Figure 3.1). One consists of pixels (left) and one of vector shapes (right). At this size, it’s hard to tell the difference between them. When I use Image Size to dramatically increase the resolution, however, the difference is more obvious. ...

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