Problem with opacity InDesign | Illustrator

[samn5753374]

Hello guys

I set a box with C0 M0 Y0 K94 in InDesign and if I place an element from Illustrator with an opacity under 100% on the element, the element gets darker than before although the color code is the same.

Then I created the same box in Illustrator and I got the darker element like in InDesign when I place an element with an opacity under 100%.

Who can help me?

[BobLevine]

I'm not even sure what you're asking. Can you please give us a better description?

[samn5753374]

Sure.

I used a rectangle with C0 M0 Y0 K94 as a background of a page in InDesign.

And when I try to copy a vectorised element from Illustrator to InDesign everything is okay. But if I change the opacity of this element the background in InDesign gets darker. Maybe it should be mentioned that the vectorised element is created by Image Trace.

[BobLevine]

What is the blend mode set to? What is the transparency blend space set to? How are you measuring the fact that it's darker?

[samn5753374]

I added screenshots to support my explanation.

This is darker:

 

[BobLevine]

You didn't answer any of my questions.

[samn5753374]

What is the blend mode set to?

How you can see in my screenshots: the blend mode should set to "normal"

What is the transparency blend space set to?

What do you mean exactly?

How are you measuring the fact that it's darker?

Because when I change the opacity the background gets darker (you can see this). Here a video: opacity - Sendvid

One more question. Why are copy/pasting? Have you tried placing the art?

I also tried to insert a .ai-File: Same Problem. And yes.

[BobLevine]

Edit > Transparency Blend Space

[rob day]

I set a box with C0 M0 Y0 K94 in InDesign and if I place an element from Illustrator with an opacity under 100% on the element, the element gets darker than before although the color code is the same.

If your Edit>Transparency Blend Space is set to Document RGB your 94% K would get converted to a 4-color mix and its appearance would change

[samn5753374]

Both are CMYK. Also the Illustrator file.

Edit: If I create a PDF file everything is all right. The problem occurs only in InDesign.

[rob day]

If you open Separation Preview and check the fill's output values is it 0|0|0|94 ?

[BobLevine]

One more question. Why are copy/pasting? Have you tried placing the art?

[samn5753374]

I also tried to insert a .ai-File: Same Problem.

[00rhodiad]

Could be related to several things.

If it's a black (K-only) screen representation issue, your "Appearance of Black" settings in Indesign can be adjusted, settings depending on your goals.

Could be your transparency blending space settings, depending of course on the placed object and how Indesign has been told to deal with whatever it is.

Could be color profile mismatch, depending again on your Indesign file's specific color profile and the color profile of the placed file and also how Indesign has been told to deal with color profile mis-matches. (Indesign might set to convert the placed file through RGB color space even if it is a native CMYK file, resulting in a "rich" CMYK build which will display differently than K-only.)

Without knowing all your color workflow and preference settings, it's hard to diagnose. But try a couple things right off: 1. Using Indesign's Separations Preview mode (Window>Output>Separations Preview, then choose "Preview" from the View pop-up menu) basically forces Indesign to render everything to CMYK visual equivalent rather than displaying various elements on the fly. It slows down screen redraw, of course, but can help you track down CMYK conversion and black rendering issues. And 2. Adding a white (paper) rectangle under your whole page renders the page to a white background rather than transparent, which can help you figure out transparency issues. Depending on your document/pref settings, this can change the screen display of transparent objects' darkness.

Sorry for the shotgun approach. There are SO MANY variables when dealing with color matching, space, profiles, and conversion.