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When 'Maximum ink' is set to 320%, so it catches incorrectly converted RGB blacks, the preflight panel will flag any object with an 'Outline' layer effect as "Filter Effect ink density too high (327%)". This happens even if the outline effect is well under the 320% mark, as shown in the image below: Furthermore, disabling the outline effect will not stop the object being flagged. See below: You need to press the 'X' to remove the effect, so the object is no longer flagged: Moreover, if you deliberately set the effect to something over 320%, and also different from 327%, you'll get two errors. One for the actual real problem, and another for the imagined 327%. See the attached image: Even moreover, disabling the outline effect will remove neither of the errors, only deletion will work as mentioned above: Finally, this error happens even if the outline effect is applied to an object inside another document, provided the option 'Look inside placed documents' is active: The steps to reproduce are: Enabling the preflight options mentioned: Maximum ink set to 320% Look inside placed documents Create any shape Apply the outline effect Check the error on the preflight panel Thanks!

Hi, How to limit the ink coverage when generating a file for printing ? In photoshop, that's easy : Print Production--> Output Preview --> Total Area Coverage (i need to limit it to 220%) How to do that in Affinity Designer or Photo, to prepare the file for my print worker ? Thanks !