Knowledgebase /PDF to Book/InDesign Plug-in/How To

What CMYK black values should I use for Blurb's PDF to Book and InDesign plug-in workflow?

Zo Silver
posted this on January 9, 2013, 16:10

The following are some guidelines for black values in our InDesign plug-in and PDF to Book workflow:

  • We recommend using a mix of 60C,50M,50Y,100K for any content in which a rich black is desired. (This is best for areas of large ink coverage).
  • For a cooler black try 80C, 20M, 20Y, 100K. For a warmer black try 20C, 70M, 70Y, 100K.
  • For text it's best to use 0C, 0M, 0Y, 100K.
  •  It's important to note that these are not precise measurements but rather basic recommendations on what our tests have shown to be the best mix of color for a good black.
  • We do not recommend using "Registration Black" (100% of all inks) as this most likely will lead to problems when printing the file.
  • For reverse text on a rich black background the smallest size we recommend is 6pt sans serif, 8pt serif, and 10 pt script.
  • Placing a large order or completing an important project? As always, we recommend you order and review a single Blurb-printed copy first. That way you can see how your project looks in print and correct any potential issues in your content or layout before placing the final order.
 
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