Step by Step RGB to CMYK

After processing a photo to look good on screen, you may end up with a print that suffers from shifts in colour. The difference between the screen and print colour is caused by a variety of factors. Your computer’s screen creates millions of colors by mixing reds, greens and blues (RGB) together, while most printers combine cyan, magenta, black and yellow (CMYK) inks to make a narrower range of colors. Colors that can’t be printed are referred to as out-of-gamut colors.

In this step by step essay ill show how to prepare a picture for print and avoid color-related disappointments. Photoshop uses the screen-friendly color space called sRGB. You can change this color space to a narrower, more printable one called Adobe RGB that helps you reduce the number of out-of-gamut colours. There’s also a handy warning that you can identify unprintable colors. In this essay ill show you how to set up Photoshop’s color management tools so that you can convert files that have an unprintable sRGB color space to the printer for CMYK logo, business cards, ext.

Photoshop RGB to CMYK

  • In general, Photoshop merely requires you to ensure the document is the proper resolution and the color profile is correct. If you’ve calibrated your system properly there’s traditionally little more to worry about for straight CMYK projects.
  • If using filters or items which require RGB mode, then work in RGB and convert to CMYK as the final step before outputting the image. This step is dependent upon proper color settings.
  • For 6 or 8 color, or any spot color project there can be other concerns depending on application workflows. For example, if you are using Spot colors in Photoshop and also using those same spot colors in Illustrator or Indesign, you’ll want spot color channels in Photoshop. This is so you output all spots are on the correct plates.
  • If taking a Spot channel Photoshop document to Illustrator, you need to use the DCS2 format when saving so Illustrator can properly read the spot channels. If going to Indesign from Photoshop, you can use .psd, .eps, .pdf, or .dcs2.
  • In general, Photoshop merely requires you to ensure the document is the proper resolution and the color profile is correct. If you’ve calibrated your system properly there’s traditionally little more to worry about for straight CMYK projects.
  • Make sure you have proper bleeds for images. (http://graphicdesign.stackexchange.com/questions/16512/how-to-prepare-a-design-for-cmyk-printing)
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