Recent Updates

  • Updated on: Nov 01, 2016

    Examining page content

  • Updated on: Nov 01, 2016

    Introduction: CxF and spectral data

  • Updated on: Nov 01, 2016

    Introduction: CxF and spectral data

    CxF is an ISO standard that has been published in June 2015 as ISO 17972-4. To be more precise it is a series of standards from which part 4 has been published first. CxF/X-4 covers spot colors, the other standard parts will cover other color, like process colors etc.

    CxF stands for Color Exchange Format and allows for embedding spectral data (measurements) into a PDF file. The presence of such data can potentially improve results when colors have to be simulated on a device that does not have that colorant. That obviously makes the most sense for spot colors, e.g. when they have to be printed on digital printer like on an ink jet machine. The same is true when the spot color has to be proofed.

    CxF/X-4 defines 3 conformance levels:

    • CxF/X-4b - is the least demanding level and requires a measurement for a single solid (100%) spot color patch.
    • CxF/X-4a - requires a minimum of 3 measurements (3 spot color patches), recommended are a total of 11 measurements.
    • CxF/X-4 - requires that patches on black background have to be measured in addition to the measurements on white background which are the same as for CxF/X-4a . Again 3 measurements are required - on white and black substrate (a total of 6), but recommended are 11 (22). Printing on black background shows how that spot color appears when printed in conjunction with other colors at the same spot of the substrate.
  • Updated on: Nov 01, 2016

    Applying shapes

  • Updated on: Oct 31, 2016

    New and enhanced Properties in 9.0

    To check for number of hits generated by other Properties within the same Check, group "Pages":

    • Number of hits in this check

    Related to CxF (Spectral data information in PDF), all in group "Output Intents for PDF/X":

    • Number of CxF entries
    • Number of process colorants without CxF entry
    • Number of spot colorants without CxF entry
    • Number of colorants without CxF entry
    • Number of stray CxF entries
    • CxF entry conforms to CxF/X-4 XML schema
    • CxF conformance level is CxF/X-4
    • CxF conformance level is CxF/X-4a
    • CxF conformance level is CxF/X-4b
    • CxF entry present for this colorant name
    • Spot color is present in CxF and in MixingHints/Solidities

    For the groups "Colors", "Output Intents for PDF/X", "Output Intents for PDF/A" and "Output Intents for PDF/E":

    • Number of components in ICC profile dictionaries N entry does not match ICC profile
  • Updated on: Oct 31, 2016

    New and enhanced Properties in 9.0

  • Updated on: Oct 24, 2016

    General command line options