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 Converting rgb to cmyk using Adobe Photoshop

 
 About PANTONE® colors

 
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 Glossary of terms

 

Adobe Photoshop work flow

The procedure is as follows:

 

Set color settings

Before preparing for printing: Set up the color settings in Adobe® Photoshop®.

  • Color Working Space is the critical setting.
  • Adobe RGB (1998) and ColorMatch RGB are each good for graphic arts.

Set to 'Ask when opening' for all profile mismatch situations.

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Save photos in Photoshop

Take an image in RGB color from a scanner, digital camera, or other source.

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In Adobe® Photoshop®, convert the image to CMYK profile by making a mode change from RGB to CMYK, with correct profiles set for monitor, Color Working Space, and CMYK profile (identified as a 'Working Space') in the Color Settings dialog.

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File in CMYK color, save in TIFF format.

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Save the file in CMYK color in TIFF format for use in other applications.

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Print directly from Photoshop (optional)

To print from Photoshop, choose Print under the File menu, and print directly to the HP Designjet printer.

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Print RGB directly from Photoshop for the HP Designjet 10ps or 20ps

Use Photoshop's PostScript™ color management.

Set printing parameters.

In the Print tab of the Default Settings dialog:

  • Color management ('Perform color correction') can be on or off.
  • Set the appropriate Media type.
  • Set the Rendering Intent to Perceptual.

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Print RGB directly from Photoshop for the HP Designjet 50ps

Use Photoshop's PostScript™ color management.

Set printing parameters.

In the Print settings tab of the Settings dialog:

  • Set the appropriate Media type.

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In the Color management tab of the Settings dialog:

  • Color management ('CMYK + Gray input') can be on or off.
  • Set the Rendering Intent to Perceptual.

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Print CMYK directly from Photoshop for the HP Designjet 10ps or 20ps

Either...

Use Photoshop's PostScript™ color management.

Set printing parameters.

In the Print tab of the Default Settings dialog:

  • Color management ('Perform color correction') can be on or off.
  • Set the appropriate Media type.
  • Set the Rendering Intent to Relative Colorimetric.

Or...

Do not use Photoshop's PostScript™ color management.

Set printing parameters.

In the Print tab of the Default Settings dialog:

  • Select Perform color correction.
  • Set the appropriate Media type.
  • Set the CMYK ICC input profile to the same profile as the printing press profile.
  • (The output profile is selected automatically by the HP Designjet 10ps or 20ps software.)
  • Set the Rendering Intent to Relative Colorimetric.

screen

top

Print CMYK directly from Photoshop for the HP Designjet 50ps

Either...

Use Photoshop's PostScript™ color management.

Set printing parameters.

In the Print settings tab of the Settings dialog:

  • Set the appropriate Media type.

In the Color management tab of the Settings dialog:

  • Color management ('CMYK + Gray input') can be on or off.
  • Set the Rendering Intent to Relative Colorimetric.

Or...

Do not use Photoshop's PostScript™ color management.

Set printing parameters.

In the Print settings tab of the Settings dialog:

  • Set the appropriate Media type.

screen

In the Color management tab of the Settings dialog:

  • Check the CMYK + Gray input box and set the ICC input profile to the same profile as the printing press profile.
  • (The output profile is selected automatically by the HP Designjet 50ps software.)
  • Set the Rendering Intent to Relative Colorimetric.

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