Adobe 5.5 Design Standard Manual de usuario descargar pdf (Pagina 63)

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Adobe Creative Suite 5 Printing Guide 61

6. In the Color Seings dialog box, click Save and name the new color

seing. Photoshop will save the color seing in the default location.

If you want to save the seings le somewhere else, navigate to

that location. You’re also given the opportunity to provide a helpful

description in the Color Seings Comment dialog box that ap-

pears when you save the seing. Type remarks in this eld to guide

subsequent users of the seing. Click OK to close the Color Seings

dialog box. Your new separation setup is now in eect.

Comments

When you create custom separation setups, enter comments in the Color Seings Comment

dialog to help other users understand how to use the setup.

Note: is special separation setup remains in eect until you choose another setup. It’s

appropriate only for converting screen captures and similar images. Be sure to choose a

more appropriate separation setup before performing general image conversions.

Grayscale

Grayscale images are intended to print only in black ink, but beware of

images that look grayscale but are actually color images. Photoshop

CS4 introduced a special black-and-white color adjustment (Image >

Adjustments > Black & White), which provides sophisticated controls for

governing the conversion from color to the appearance of a black-and-

white image. However, the Black & White adjustment does not actually

convert the image to grayscale.

Not Truly Grayscale

While this image appears to be black-only, the title bar of the document tells the truth; it’s

actually RGB.

If such an image is not converted to grayscale, even very slight color

shifts on press could produce a color cast in the printed image. An

image that’s colorbut appears grayscalestill displays its color mode

in the document’s title bar. Look for the CMYK or RGB identifier after

the image name in the title bar. Just finish the conversion by choosing

Image > Mode > Grayscale, and update the image links if the image is

used in an InDesign layout or Illustrator file.

Multitone images (duotone, tritone)

Multitone images such as duotones, tritones, and quadtones are

actually grayscale images containing embedded transfer curves. The

transfer curves contain information about what colors are generated

during output, as well as the relative values of those colors. Most

commonly, process black is one component of a duotone or tritone,

which can cause a common problem you may encounter with multitone

images supplied by customers.

The initial dialog box for duotone options (Image > Mode > Duotone)

automatically populates the black ink name for you. Unless the image is

intended to print with a spot black ink rather than process black, this

default black ink should not be changed. Some users think that they

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