Use Grayscale and Bitmap Modes for Black and White Images

If you are working with black and white photography, using 1-Color printing, or designing for a publication such as newsprint, you will want to take advantage of both the grayscale and bitmap modes. If you are scanning original artwork into Photoshop, your scanner software should ask you what mode you would like to scan in. If you select grayscale, then Photoshop will automatically open the file in grayscale mode. If you select Line Art when scanning an image such as a logo, Photoshop will automatically open the image in bitmap file mode. You can also convert any color files you have to grayscale mode and then convert grayscale images to bitmapped images, and vice versa.

If you are preparing your image for newsprint, make sure you talk with the printer or the person that will be taking your files through prepress. Sometimes a grayscale image must be prepared with a specific halftone screen. Halftone screens consist of dots that control how much ink is deposited at a specific location on-press. Varying their size and density creates the illusion of variations of gray. Before creating your halftone screens, check with your print shop for preferred frequency, angle, and dot settings.

You cannot directly convert a color image to a bitmapped image. It must first be converted to a grayscale image, and then to a bitmap image. You should definitely exercise caution when converting your images to bitmaps. I

► QUICK TIP cannot overemphasize how important it

I is to know what prepress specifications the publication you are designing for requests. Each publication is different—make sure Kejer to Chapter 12 jor more tips on outputting they provide you with all the necessary print graphics. file preparation information. If it is not provided, ask!

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Understanding Adobe Photoshop Features You Will Use

Understanding Adobe Photoshop Features You Will Use

Adobe Photoshop can be a complex tool only because you can do so much with it, however for in this video series, we're going to keep it as simple as possible. In fact, in this video you'll see an overview of the few tools and Adobe Photoshop features we will use. When you see this video, you'll see how you can do so much with so few features, but you'll learn how to use them in depth in the future videos.

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