Depending on which PDF export setting I use, I'm getting different treatments in the 100% black band on my art. (It's important to note that the black band is inideed 100%, with no filters or blending treatments.) Saving as X1 or X3, as required by the publisher, creates a darker black where it sits on top of the background photo as well as a slight ghosting of that background image; the rest of the bar is paler and "solid". Saving as a High Quality Print during test drives shows a uniform (though less rich) black all the way across.
Does anyone know why this happens in the X1 and X3 process and/or how to remedy (short of adding the black bar to my base background art in photoshop)?
Visual attached. Thank you!
Tech info: I'm on a Mac OS Ventura 13.5.1, InDesign 2024 V 19.1, and Adobe Acrobat Pro 2023.
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