Sử dụng photoshop cs5 part 70 pdf

Check Preview, then from the Device to Simulate menu, choose the correct color profile for your inkjet printer and paper the profile you either downloaded from a manufacturer’s website

In this next step in color management, you’ll create

a custom proof setting for your specific inkjet

printer and paper, and use it to view a soft proof, or

onscreen simulation, of your print output Although

the soft proof won’t be perfectly accurate, it will give

you a rough idea of how your colors will look

(with-out costing you a penny)

To proof a document as an inkjet print

onscreen:

1 From the View > Proof Setup submenu, choose

Custom The Customize Proof Condition dialog

opens In the next steps, you will choose custom

proofing settings for your output device.A

2 Check Preview, then from the Device to

Simulate menu, choose the correct color profile

for your inkjet printer and paper (the profile

you either downloaded from a manufacturer’s

website or installed with your printer driver file)

3 Uncheck Preserve RGB Numbers, if available

Photoshop will simulate how the colors will

look when converted to the output profile This

option is available only if the color mode of the

output profile that you chose from the Device to

Simulate menu matches that of the current file

(e.g., if your image is in RGB Color mode and you

chose an RGB device as the Device to Simulate)

4 Choose a Rendering Intent to control how colors

will change as the image is shifted from one

pro-file to another (see the sidebar on the next page)

We recommend choosing either Perceptual or

Relative Colorimetric You can evaluate a couple

of options via the preview and by making some

test prints

Check Black Point Compensation to allow

adjustments to be made for differences in black points among different color spaces With this option chosen, the full dynamic range of the image color space is mapped to the full dynamic range of the color space for the output device (the printer) With this option off, black areas

in the image may display or print as grays We recommend checking this option for inkjet printing

5. Optional: For Display Options (On-Screen),

check Simulate Paper Color to preview the white

of the printing paper as defined in the printer profile; or if you’re going to print the file on uncoated paper, check Simulate Black Ink to preview the full range of black values that the printer can produce

6 To save your custom proof setup, click Save, enter

a name, keep the psf extension, keep the location

as the default Proofing folder, then click Save

7. Click OK Saved proof setups are available on the Custom Proof Condition menu in this dialog and at the bottom of the View > Proof Setup

submenu View > Proof Colors will be checked

automatically, so you can see the soft proof And for the moment, the Device to Simulate profile

is listed in the tab of the current document

Remember, the Proof Setup options control only how Photoshop simulates colors onscreen

Colors in the actual file won’t be converted to the chosen profile until you convert the docu-ment to a different color mode (such as from RGB to CMYK) or send it to an inkjet printer

Proofing colors onscreen

A To generate a soft proof of our document, in the Customize Proof Condition dialog, we’ve

chosen the profile for our Canon Pixma inkjet printer as the Device to Simulate.

Choosing a Proof Setup preset will cause Photoshop to soft-proof (simulate) the colors in your RGB file onscreen as if it were printed using CMYK inks or displayed online on a Windows or older Macintosh display

To proof colors onscreen for commercial printing or online output:

1 From the View > Proof Setup submenu, choose

the preset for the output display type that you want Photoshop to simulate:

Working CMYK to simulate colors for the

commercial press that is currently chosen on the CMYK menu under Working Spaces in the Edit > Color Settings dialog in Photoshop

Legacy Macintosh RGB (Gamma 1.8) or Internet Standard RGB (sRGB) ★ to simulate colors for online output using the legacy Mac gamma (1.8) or Windows gamma (2.2) as the proofing space

Monitor RGB to simulate colors using the

custom display profile for your monitor

2 View > Proof Colors will be checked

automati-cally To turn off soft proofing at any time, simply uncheck it (Ctrl-Y/ Cmd-Y)

Printing a file on an inkjet printer

In this section, we will show you how to output your file to an inkjet printer and obtain a quality color print that closely matches the document you have been viewing onscreen You will complete the color management setup that you started in Chapter 1 by choosing settings in the Print dialog

We have divided the steps for using this dialog into three parts: choosing settings for the printer driver, choosing settings in the Print dialog for Photoshop, and finally, turning off color man-agement for the printer and printing the file in Windows or the Mac OS

CHOOSING A RENDERING INTENT

➤ Perceptual changes colors in a way that seems

natural to the human eye, while attempting to

pre-serve the appearance of the overall image It’s a good

choice for continuous-tone images

➤ Saturation changes colors with the intent of

preserving vivid colors, but in so doing compromises

color fi delity Nevertheless, it is a good choice for

charts and graphics, which normally contain fewer

colors than continuous-tone images

➤ Absolute Colorimetric maintains the color accuracy

only of colors that fall within the destination color

gamut (i.e., the color range of your printer) but in

so doing sacrifi ces the accuracy of colors that aren’t

within that gamut

➤ Relative Colorimetric, the default intent for all

the Adobe predefi ned settings in the Color Settings

dialog, compares the white, or highlight, of your

document’s color space to the white of the

destina-tion color space (the white of the paper, in the case

of print output), shifting colors where needed This

is the best rendering intent choice for documents in

which most of the colors fall within the color range

of the destination gamut, because it preserves most

of the original colors

Note: Consult your printer manual when choosing a

rendering intent For example, some inkjet printers

favor Perceptual over Relative Colorimetric

Continued on the following page

4 The menu names vary with the chosen printer

model, so we will refer to them generically:

In Windows, in the Main (or other) tab, choose the best-quality option for photo printing For the paper options, choose the source for your paper, the specific type of paper to be used, and

the paper size ( A, next page)

In the Mac OS, the inkjet printer you chose

in step 2 will be listed on the Printer menu

Choose the desired paper size for the print (for a borderless print, pick a size that includes the word “borderless”) From the fourth menu down, choose the print quality and paper options category (e.g., Quality & Media or Print Settings) From the media or paper type menu, choose the type of paper you will be using (B, next page), and from another menu, choose

a print quality option (C, next page)

5. Click Save to close the [Printer Name]

Properties/OS-level Print dialog and return

to the Print dialog for Photoshop Now you’re ready to choose print settings for Photoshop (see page 408)

In Photoshop CS5, all the necessary printing

options are in the Print dialog And unlike in

pre-vious versions of Photoshop, clicking the Print

button sends your file directly to the printer Upon

opening the Print dialog, the first step is to tell

Photoshop what type of printer you will be using

You will also click the Print Settings button to

gain access to the print dialog for your operating

system, in order to specify the paper size, paper

type, and other printer-specific options

To choose settings in the Print dialog for

inkjet printing: ★

Part 1: Choose settings for your printer driver

1 Open the file to be printed, then choose File >

Print (Ctrl-P/Cmd-P) The Print dialog opens,

complete with a preview.A

2 From the Printer menu, choose the inkjet

printer you’re planning to use

3 Click Print Settings to open the [Printer

Name] Properties/Print dialog for your

operating system.The driver for your chosen

printer and your operating system control

which options are available in this dialog

A In the Print dialog for Photoshop, choose your inkjet device from the Printer menu, then click the Print Settings button.

A This is the Print Settings >

[Print Name] Properties dia-log for an Epson printer, in Windows 7 We chose a Quality Option and Paper Options.

B This is the Print Settings > Print dialog for an Epson

printer in the Mac OS We chose Print Settings from

the fourth menu down, and are choosing a specific paper

type from the Media Type menu.

C Next, in the same dialog, we clicked Mode: Advanced and chose a Print Quality option.

installed (as per our instructions on pages 14–15), or choose a profile that matches the paper type you chose when you clicked Print Settings (see page 406) The profiles for the currently chosen printer should display at the top of the menu If you don’t see your custom installed profile there, scroll downward on the list

6 From the Rendering Intent menu, choose the

same intent that you used when you created the soft-proof setting for your inkjet printer, which most likely was either Perceptual or Relative Colorimetric (see the sidebar on page 405)

➤ You could run one test print for the Perceptual intent and one for the Relative Colorimetric intent, and see which one produces better results

7 Check Black Point Compensation This option

preserves the darkest blacks and shadow details

by mapping the full color range of the docu-ment profile to the full range of the printer profile, and is recommended when printing an RGB image

8 Below the preview, do the following:

Check Match Print Colors to display a

color-managed soft proof of the image in the pre-view, based on the chosen printer and printer profile settings

Uncheck Gamut Warning This option

previews out-of-gamut colors as gray It is necessary only when printing to a commercial CMYK printer

Check Show Paper White to have the paper

color be simulated in any white areas in the preview, based on the current printer profile

9 Before printing the image, you need to turn

off color management for your printer To do this, carefully follow the steps on page 411 for Windows or on page 412 for the Mac OS

➤ Click Done in the Print dialog if you want to save all of your settings for the current docu-ment and close the dialog

After choosing print settings by following the steps

on page 406, the next step is to choose position,

scale, color management, and output options in

the Print dialog for Photoshop

Part 2: Choose settings in the Print dialog ★

1 In the Print dialog for Photoshop ( A, next

page), click the portrait or landscape

ori-entation button Check Center Image to

posi-tion the image in the center of the paper Or

to reposition the image on the paper, uncheck

Center Image and enter new Top and Left

values (note the preview); you can also check

Bounding Box, if desired, then drag the

bound-ing box in the preview

2 Optional: To scale the print output slightly

(not the actual image), do one of the following:

Check Scale to Fit Media to fit the image

auto-matically on the paper size you chose in step 4

on page 406

Uncheck Scale to Fit Media, then change the

Scale percentage or enter specific Height and

Width values (choose a unit from the Units

menu) The three values are interdependent;

changing one causes the other two to change

Note: Use these features to scale the print by

only a small amount (i.e., fractions of an inch

or a few percentage points) If a larger scale

change is needed, cancel out of the dialog, use

Image > Image Size to scale the image (see

pages 122–124), then resharpen it

3 From the menu in the upper right, choose

Color Management, then click Document to

use the color profile that’s embedded in the

image, which will be Adobe RGB (1998) if

you’re continuing with the color management

workflow that you began in Chapter 1

4 From the Color Handling menu, choose

Photoshop Manages Colors to let Photoshop

handle the color conversion This option will

ensure optimal color management (See the

sidebar on the next page.)

5 From the Printer Profile menu, choose the

printer, ink, and paper profile that you have

A Choose settings in the Print dialog in Photoshop.

WHY WE LET PHOTOSHOP MANAGE COLORS

From the Color Handling menu of the Print dialog, you can choose to let Photoshop or your printing

device manage the colors What’s the difference?

➤ If you choose Photoshop Manages Colors (the option we recommend), you will be able to select a

profi le that matches the paper choice you made in the Print Settings dialog Choose either the printer

and paper profi le that you downloaded from a paper or print manufacturer’s website or a profi le that

was installed with your printing device Photoshop will adjust colors to fi t that profi le, then send the

data to the printer By using the profi le, your color-managed workfl ow is preserved, and you enable

Photoshop to use its expertise to produce good color

➤ If you choose Printer Manages Colors, the printer driver will handle the color conversion instead

of Photoshop This may limit the print quality, for two reasons First, the printer won’t be aware of

your custom paper choice and custom printer profi le And second, color conversion will be subject to

the printer’s ability to convert colors rather than the color management settings you have been using

up to this point Note that with this option chosen you can adjust the amount of each ink color the

printer uses (and thereby override the default printer settings), but we don’t recommend doing so

CHOOSING OUTPUT OPTIONS

To access options for commercial printing, from the menu in the upper right corner of the File > Print

dialog for Photoshop, choose Output.Some key Printing Marks options that we think you should be aware

of are listed below For other options, refer to Photoshop Help

Some of the Output options that can be produced from the Print dialog in Photoshop are shown on this printout.

Label

Crop marks

Registration mark

Description

Under Printing Marks, check any of the following

options:

➤ Calibration Bars prints a grayscale and/or color

calibration strip outside the image area

➤ Registration Marks prints marks that a print

shop uses to align color separations

➤ Corner Crop Marks and Center Crop Marks print

short little lines that a print shop uses as guide

lines when trimming the fi nal print

➤ Description prints, outside the image area,

whatever information is listed in the File >

File Info dialog (in the Description fi eld in the

Description tab)

➤ Labels prints the fi le name, document color

mode, and current channel name on each page

(outside the image area)

A few of the options available in the Functions area are as follows:

➤ Include Vector Data causes the edges of any vector objects (such as type or shapes) to print at the printer resolution, not at the document reso-lution This option is checked automatically if the

fi le contains type or a shape layer

➤ Click Bleed to specify a Width for the place-ment of crop marks (a distance between 0 and 3 inches, measured inward from the edge of the canvas area)

➤ In the Mac OS, if the chosen output device is capable of handling 16-bit fi les, a Send 16-Bit Data option displays, which, if checked, permits color data from a 16-bits-per-channel fi le to be sent to the printer Prints from such fi les will have

fi ner details and smoother color gradations

The final step before outputting a file to an inkjet

printer is to enable Photoshop to manage the color

conversion from RGB color to printing inks To do

this, you will click Print Settings once more and turn

off color management for your printer Note that

the color management controls in this dialog will

vary depending on the manufacturer of the device,

because these options are controlled by the operating

system and the printer driver

In the instructions below, color management will

be turned off for an Epson printer driver If your

printing device is a different model, research how to

access print quality and color management settings

for it, and use our steps as general guidelines

Part 3: Turn off color management for your

printer in Windows, then print the file:★

1 In the Print dialog for Photoshop, click Print

Settings to get to the [Printer Name] Properties

dialog for your Windows system

2 Click the Advanced tab AA different set of

options appears, including controls for color

management

3 In the Color Management area, click ICM to

switch control of color management from the

Epson driver to the color management system

that’s built into Windows

4 Below the ICM button, check Off (No Color

Adjustment) to disable color management for

the printer.B

5 Click OK to close the Properties dialog and return

to the Print dialog for Photoshop

6 Click Print Phew! You made it.

A In the Print Settings > Properties dialog for an Epson printer in Windows, we clicked the Advanced tab to display these Color Management options.

B We clicked ICM, then checked Off (No Color Adjustment).

The final step before outputting a file to an inkjet

printer is to enable Photoshop to manage the

color conversion from RGB color to printing inks

To do this, you will click Print Settings once more

and turn off color management for your printer

Note that the color management controls in this

dialog will vary depending on the manufacturer of

the device, because in the Mac OS, these options

are controlled by the operating system and the

printer driver

In the instructions below, we’ll show you

how to turn off color management for an Epson

printer driver If your printing device is a

differ-ent model, research how to access print quality

and color management settings for it, and use our

steps as general guidelines

Part 4: Turn off color management for your

1 In the Photoshop Print dialog, click Print

Settings to open the Print dialog for the

Mac OS

2 From the fourth menu, choose Color

Management A

3 Click Off (No Color Adjustment) BNote

that with color management turned off for

the printer, depending on the print model,

the color controls and the Advanced Settings

sliders either won’t display at all or will display

but be dimmed

4 Click Save to return to the Print dialog for

Photoshop

5 Click Print Congratulations!

A In the Print Settings > Print dialog for an Epson printer in the Mac OS, we chose Color Management from the fourth menu.

B We clicked Off (No Color Adjustment) to turn color management off for our printer.