It is a payable option of callas pdfToolbox and therefore not available as a separate download. To activate it a licensed version of callas pdfToolbox 4 is has to be installed.
To tryout the callas DeviceLink Add-on please download callas pdfToolbox 4
are a special form of ICC profiles, which offer a color transformation from source to destination in ONE profile. This way, each color of the source color space is directly transformed to a certain color in the destination color space. DeviceLink profiles are certified by the ICC (International Color Consortium).
callas DeviceLink Add-on is delivered with a package of the most common DeviceLink profiles but also offers the possibility to install your own.
DeviceLink profiles complement the usage of regular ICC profiles to avoid weaknesses of a color conversion based on ICC profiles for certain tasks. These weaknesses mainly are the CMYK to CMYK transformation and e.g. the preservation of pure black text in a picture.
A CMYK to CMYK transformation with ICC profiles always is performed via the device independent Lab color space, which leads to a complete reseparation of the data with partly unpredictable and unwanted results. This does not happen with DeviceLink profiles, which offer a direct control of color composition.
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