Encapsulated PostScript (EPS) can represent both vector and bitmap data and is supported by virtually all graphic, illustration, and page-layout programs. Adobe applications that produce PostScript artwork include Adobe Illustrator, Adobe® Dimensions®, and Adobe® Streamline™. When you open an EPS file containing vector art, it is rasterized—the mathematically defined lines and curves of the vector artwork are converted into the pixels or bits of a bitmap image.
You can also bring PostScript artwork into Photoshop using the Place command, the Paste command, and the drag-and-drop feature.