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IDProjectCategoryView StatusLast Update
0015186ScribusColor Managementpublic2018-03-08 17:23
ReporterJLuc Assigned To 
PrioritynormalSeverityminorReproducibilityhave not tried
Status newResolutionopen 
PlatformLinuxOSUbuntuOS Version17.10
Summary0015186: Preflight check for "Overprint" (overprint white is not printed)
Description"Overprint" is a background color option ("Surimpression"). The other choice is " knockout" (en for fr "Défonce").

When printed, it is NOT printed. AFAICT, it's because "overprint white" means "no ink" or "do nothing".

This is the correct behaviour for overprint white BUT when viewed on screen it is displayed as normal white because no FOSS lib exists to perform these rather heavy computations.

And when exported to PDF, all tested linux viewers (evince, xpdf, okular) display it as normal white too, and afaik, they dont provide any option to change that.

This global behaviour is strongly misleading.

Request is : plz create a new preflight warning that is triggered for all cases of "Overprint" background. The professional that really wants to use this feature (even when s⋅he cannot check the result on screen) can uncheck this warning in the preflight prefs.

Tagscolor management, PreflightChecker, prepress


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Issue History

Date Modified Username Field Change
2018-03-08 17:23 JLuc New Issue
2018-03-08 17:23 JLuc Tag Attached: color management
2018-03-08 17:23 JLuc Tag Attached: PreflightChecker
2018-03-08 17:23 JLuc Tag Attached: prepress