Читать книгу Adobe Illustrator CC For Dummies - Judith Muhr, David Karlins - Страница 13

Shortly I walk you through my curated set of options for creating a document, but all the options boil down to three essential choices: color mode, units of measurement, and dimensions:

 Print color or web color: Projects destined for commercial printing should probably be created with CMYK color. That said, even high-quality personal printers, and some commercial print workflows, accept or prefer RGB color. CMYK (cyan, magenta, yellow, and black) is referred to as subtractive color because these four colors are printed on top of each other to create a full range of colors. RGB (red, green, blue) is referred to as additive color because red, green, and blue dots of varying intensity are combined on a screen to generate a spectrum of color.

 Units of measurement: You use pixels for web and other increments (such as inches, centimeters, or points) for print projects.

 Dimensions (height and width): Because vector graphics are infinitely scalable, sometimes dimensions are not that relevant. But when illustrations are aimed at a specific device with a set width and height (such as a mobile phone app), viewport (a defined website width), or print output (such as a poster or postcard), you want to define an artboard (or multiple artboards) that matches those dimensions. I explain how artboards work later in this chapter, but the short story is that they are defined spaces in the Illustrator canvas that can be easily shared for print or screens.