Find out in this article,
- which requirements must be met to carry out this Fixup and
- how to apply the Fixup.
1. Introduction
The Fixup Set Black Objects to Overprint is available in the Workflow. The aim of this Fixup is to set black objects - vectors, texts or both - to overprint.
2. General
Use the Fixup Set Black Objects to Overprint to overprint black objects and avoid the risk of a "flash" in e.g. the offset.
Find the Fixup in the Data Preparation tab of an Article, Order or Production Job by:
- entering the name of the Fixup in the Filter area,
- activating the option Object in the Category area,
- activating the option Change in the Action area,
- activating the option Overprint or Knockout in the Search area.
3. Description
This Fixup sets the overprint status for pure black objects - 100 % greyscale and 0/0/0/100 CMYK - (vectors and/or text) to overprinting. Please note that the objects must be black in the sense of the aforementioned black definition.
3.1. Requirements and Functionality
For the Fixup to do what it promises, the following conditions must be met:
- There is at least one black object in the file.
- Black objects are created in CMYK (0/0/0/100) or greyscale (100 %).
Figure 1: The dialog of the Fixup Set Black Objects to Overprint
Use the following option to overprint black objects:
- Template [1] – settings selected in the dialog can be saved as a template and thus applied to other Articles/Print Items.
-
Apply to [2] – select the objects that should be set to overprint in the selection menu. The following options are available:
- Vector – only black vectors are set to overprint.
- Text and Vector – all black vectors and texts are set to overprint.
- Text – only black text is set to overprint.
-
Variable Content [3] –select the desired placeholder - database field or user-defined field - from which the value for the selected objects should be retrieved. The following values must be found in the selected field so that the respective objects are selectable:
BlackLineArtBlackObjectsBlackText
Figure 2: Values in the selected field for the option Apply to
3.2. Before/After
To experiment with this function, refer to the sample file "Sample_Set Black Objects to Overprint.pdf". The file contains black text and black vectors. Both object types are set to Knockout and should be overprinted.
After applying the Fixup, the file "Sample_Set Black Objects to Overprint_End.pdf" is created. Here, the overprint status was set from Knockout to Overprint. The values from Figure 1 were used.
Figure 3: Left: initial file; Right: edited file wherein all black objects were set to Overprint
Article update: Workflow 1.18.0 – 08/2024