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GRAFOSTIL WIKI

Prepress

  • General guidelines Colour specifications Document naming convention Fonts Use of images Proofs


Print

Quality

Typical Mistakes

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Revision 4 as of 2018-02-13 11:22:01
  • Quality

Quality

Sometime is very hard to explain is it product printed well.

How we see color is different topic but usualy we have several cases.

WYSYWIG

Wysywig or what you see is what you get is big myth in computer era.

Customer work on files and look on his monitor. Customer expect that what he see on his monitor printer must reproduce and if it's not it's printer fault.

There is several reason why you can't achieve same color reproduction on printing press as you see on your monitor. Mainly there is mistakes which fall in different categories.

Device fault

Cheap low quality monitor

Impromer monitor setup

Uncalibrated monitor

Software fault

Improper color setup in desktop application, typical mistake North America General Purpose 2

Invalid or legacy ICC profile selection, typical mistake SWOP Coated or Fogra 39 ICC Profile

Wrong softproof setup

Customer did not use softproof

Approvment of digital data in Email program

Usage of Acrobat Reader insted of Acrobat Pro

Software bug in desktop application.

Document format

Wrong image format, gif, png

Wrong image size, low resolution or too high image resolution

Wrong image color space, RGB instead of CMYK

Wrong document colorspace RGB instead of CMYK

Too high sum of inks, typical mistake is content with C=100, M=100, Y=100, K=100

Usage of Pantone C color library and product is printed on uncoated media.

Document exchange

Wrong PDF export setup, typical mistake is AdobePDF preset [PressQuality]

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