Adobe 23101764 - Photoshop CS - PC Istruzioni operative

ADOBE PHOTOSHOP CS TUTORIAL

Adobe Photoshop CS

A D O B E P H O T O S H O P C S

Adobe Photoshop CS is a popular image editing software that provides a work

environment consistent with Adobe Illustrator, Adobe InDesign, Adobe ImageReady, and

other products in the Adobe Creative Suite. This tutorial is an introduction to using

Adobe Photoshop. Here you will learn how to get started, how to use the interface, and

how to modify images with basic Photoshop tools.

Adobe Photoshop CS

G E T T I N G S T A R T E D

OPENING

Begin by opening Adobe Photoshop CS.

On a PC, click Start > Programs > Adobe > Photoshop CS, or click on the shortcut on

the desktop.

On a Mac, click Macintosh HD > Application > Adobe Photoshop CS > Adobe

Photoshop CS shown in Figure 1, or click the icon in the Dock.

Figure 1. Navigation to Photoshop CS on a Mac

SETTING UP THE DOCUMENT

Setting up your document correctly from the start will make your job much easier as you

work through your project. This will require some advanced planning. For example, if

your final output will be a brochure, you may need to set up your document to be

horizontal and double-sided.

To create a new document, click File > New. This will open the Document Setup dialog

box (Figure 2).

Figure 2. Document Setup dialog box

Adobe Photoshop CS

Here you will be able to name your file, set up the correct page size, and orientation for

your document. Options include, but are not limited to:

Page Size and Orientation

Change the page size by typing in new values for width and height. Page size

represents the final size you want after bleeds or trimming other marks outside the page.

In the Preset dropdown menu you can find such common sizes as letter, legal, tabloid,

etc. Typing in exact values for Height and Width gives you more control over the size

and orientation of your page.

Resolution

Resolution is a number of pixels on a printed area of an image. The higher the

resolution, the more pixels there are on the page, the better is the quality of the image.

However, high resolution increases the size of the file. The standard recommended

resolution for printed images is 150 - 300, for web images - 72.

Color Mode

Choose a color mode that will best fit your project. For example, when making a graphic

for a web site, choose RGB. When making an image for print, choose CMYK.

Background Contents

Choose the background: white, color, or transparent.

When you have entered all of your document settings, click OK.

OPENING AN IMAGE FROM A DISK

If the image you have is saved on a disk, select File > Open, and then navigate to the

disk drive where your image is saved. Choose the image file and click Open. At this

point, you may want to save your image under a different name so that you can always

have the original to fall back on in case of a mistake. To save you r file, select File >

Save As and type in the new name of the file in the dialogue box. Now you should be

ready to go.

Adobe Photoshop CS

I N T E R F A C E L A Y O U T

This is the layout of Adobe Photoshop interface.

Menu Bar

If you look at the top of the screen you will see the Menu bar which contains all the main

functions of Photoshop, such as File, Edit, Image, Layer, Select, Filter, View,

Window, and Help.

Tool Bar

Most of the major tools are located in the Tool bar for easy access.

Options Bar

The Options bar contains extra options for most tools. The options change as different

tools are selected. Some tools share the same settings in the options bar, for example,

painting modes and opacity, the others have specific options, for example, the Auto

Erase setting for the Pencil tool.

The Image

The image will appear in its own window once you open a file.

Adobe Photoshop CS

Image Name

The name of any image that you open will be at the top of the image window as shown

above.

Palettes

Palettes contain functions that help you monitor and modify images. By default, palettes

are stacked together in groups. These are the palettes that are usually visible:

Navigator, Color, Histogram, Layer. If none of the palettes are visible, go to Window

in the Menu bar and choose palettes you need to work with.

Adobe Photoshop CS

P A L E T T E S

Below is the description of the most commonly used palettes in Adobe Photoshop CS.

Palettes used for more advanced image editing will be covered in the Adobe Photoshop

CS Tutorial - Intermediate.

NAVIGATOR

The Navigator palette (Figure 1) allows you to resize and move around within the

image. Drag the slider, click on the Zoom In and Zoom Out icons, or specify the

percentage to navigate in the image.

Figure 1. Navigator palette

COLOR, SWATCHES, STYLE

The Color palette (Figure 2) displays the current foreground and background colors and

RGB values for these colors. You can use the sliders to change the foreground and

background colors in different color modes. You can also choose a color from the

spectrum of colors displayed in the color ramp at the bottom of the palette.

Figure 2. Color palette

Adobe Photoshop CS

In the Swatches palette (Figure 3) you can choose a foreground or background color or

add a customized color to the library.

Figure 3. Swatches palette

The Styles palette (Figure 4) allows you to view, select, and apply preset layer styles.

By default, a preset style replaces the current layer style. You can use the styles in the

palette or add your own using the Create New Style icon.

Figure 4. Styles palette

Adobe Photoshop CS

HISTORY

The History palette (Figure 5) stores and displays each action performed allowing you

jump to any recent stage of the image alteration. The alterations should be created

during the current working session; after saving or closing the document the History

palette clears all the contents. Each time you apply a change to an image, the new state

of that image is added to the palette. The History palette can store up to 20 stages.

However, you can always go back to the first stage, for example opening the document.

It is important to know that once you click on any of the previous stages, all the changes

that were made after it will be lost.

Figure 5. History palette

LAYERS

Layers let you organize your work into distinct levels that can be edited and viewed as

individual units. Every Photoshop CS document contains at least one layer. Creating

multiple layers lets you easily control how your artwork is printed, displayed, and edited.

You will use the Layers palette (Figure 6) often while creating a document, so it is

crucial to understand what it does and how to use it.

Adobe Photoshop CS

A) Layer Visibility - the eye shows that the

selected layer is visible. Click on or off to see or

to hide a layer.

B) Layer Locking Options - click the checkered

square icon to lock Transparency; click the

brush icon to lock the Image; click the arrow

icon to lock the Position; click the lock icon to

lock all options.

C) Layer Blending Mode - defines how the

layer's pixels blend with underlying pixels in the

image. By choosing a particular blending mode

from the dropdown menu you can create a

variety of special effects.

D) Fill - by typing in a value or dragging the

slider you can specify the transparency of the

color of the image or object.

E) Opacity - by typing in a value or dragging a

slider you can specify the transparency of the

entire layer.

F) Layer Lock - the icon shows when the layer

is locked and disappears when it is unlocked.

Double-click the icon to unlock the layer.

G) Layer Options Menu - click the black

triangle to see the following options: New Layer,

Duplicate Layer, Delete Layer, Layer

Properties, etc. Some of the options are

presented as icons at the bottom of the Layers

palette.

H) Layer Styles - if a layer has a style, an "F"

icon shows at the bottom of the Layers palette.

Click the little black triangle to see style options.

I) Layer Mask - a grayscale image, with parts

painted in black hidden, parts painted in white

showing, and parts painted in gray shades

showing in various levels of transparency.

J) Layer Set - this option helps to organize

images with multiple layers. Click the icon to

create a folder for several layers.

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