Adobe 5.5 Design Standard Manual de usuario descargar pdf (Pagina 65)

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Adobe Creative Suite 5 Printing Guide 63

•Clipping paths and vector masks for silhoueing objects.

•Importing 3D content from CAD programs.

•Editing and painting directly on 3D layers.

Photoshop PSD files support CMYK, RGB, and Lab color spaces, as well

as grayscale, multi-channel, and multitone (duotone, tritone, and so on).

All of these aspects of PSD files remain intact when Photoshop files are

placed into Illustrator or InDesign documents, with the exception of

blending modes. While opacity attributes of a Photoshop file are

honored by Illustrator and InDesign, blending modes are not. See the

“Photoshop Blending Mode Issue” topic in the InDesign chapter of this

document for more information on the issue and how to work around it

in InDesign.

Current versions of InDesign and Illustrator support layered PSD files, so

there is no need to flatten layers for output. Because InDesign allows

overrides to Photoshop layer visibility with Object Layer Overrides,

flattening an image whose appearance is managed by InDesign would

result in incorrect output. If you are concerned about storing large

Photoshop files, note that, pixel-for-pixel, a Photoshop file usually takes

up less space on disk than an equivalent TIFF or EPS file. Certainly, a

large, complex file with many layers will result in a larger file size, but

consider it a fair trade-off for the flexibility such a file provides. If a

customer’s file contains unused, hidden layers, consult with the

customer before deleting such layers to reduce file size. If the file is used

in an InDesign document, determine whether those layers are rendered

visible by Object Layer Options or required for alternate versions of the

image on another part of the job.

Now, let’s look at some of the unique capabilities of native Photoshop

files.

Vector content in Photoshop images

While most Photoshop images are composed solely of pixels,

Photoshop also supports the inclusion of vector information. Vector

text, vector-based Shape layers, vector masks, and Smart Objects can

coexist with pixels in a Photoshop file. Such content remains editable

throughout the life of the image; text can be edited with the Type tool,

and vector shapes can be edited with the Pen and selection tools. Since

such content has no inherent resolution, it can be scaled and rotated

within Photoshop without losing fidelity. However, some special

handling is required to ensure that such content prints as intended.

Vector Text: The Horizontal and Vertical Type tools are used to create

vector text in Photoshop. Like text in Illustrator or InDesign, such text is

fully editablecontent, color, size, and spacing can be changed at any

time, provided that the text remains true text. If the text is rasterized

(Layer > Rasterize > Type), the text becomes pixels and such editability

is lost. Note that the Type Mask tools do not create vector text; they let

you type pixel-based characters that instantly become active selections.

The appearance of vector text in Photoshop is a bit misleading; even

though the text is clearly not pixelsit’s fully editableit appears

rasterized. If the image is printed directly from Photoshop, the edges of

text will be defined at the resolution of the underlying image, unless the

image is printed to a PostScript printer and Include Vector Data is

checked in the print dialog. (Text will be rasterized if the image is

printed to a non-PostScript device, such as an inkjet printer, even if

Include Vector Data is checked.) If a Photoshop .psd file containing text

is placed into Illustrator or InDesign, the text will image at the resolution

of the placed image. However, if the file is saved as a Photoshop PDF,

the text in the image will print as crisp, vector text if the Photoshop PDF

is placed in Illustrator or InDesign.

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Adobe 5.5 Design Standard Manual de usuario Pagina 65

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Adobe 5.5 Design Standard Manual de usuario Pagina 65

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