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1. InDesign changing opacity for an unselected item

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   14 comments  ·  Adobe InDesign: Bugs » Effects/Transparency  ·  Delete…  ·  Admin →
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   Resolved For User  ·  AdminRavi Kiran (Senior Lead Quality Engineer, Adobe InDesign) responded

   The magic of InDesign’s effects all happens via Adobe’s transparency technology, which allows us to blend colors and detail from different objects. In order for it to all work there has to be a consistent color space for InDesign to use when it blends colors. This is called the Transparency Blend Space and it’s really important that you understand it in order to get the most out of InDesign’s effects. When we use transparency effects, InDesign compares different objects and combines their colors and detail. In order for objects to be blended, they have to be in the same color space. So when you apply transparency, InDesign converts everything on a spread to the Transparency Blend Space, regardless of whether that object is actually involved in the effect. And it’s important to note that when we say things are converted, we don’t mean that InDesign alters your placed files; they are left completely alone. What we mean is that InDesign is using a different method for interpreting the colors in those files. It simulates as if you change the colors in those documents, just to give itself a reliable method for blending. It’s a totally nondestructive change. See the Transparency Blend Space and check if it is Document CMYK. So now if you apply any transparency on this spread, everything on the spread will be converted to the Document CMYK blend space. You can test this by selecting any object and going to the Effects panel and just changing the Opacity from 100% to 99% and you can see that all the colors shift. That’s really interesting because they’re not even touching. But just because they’re on the same spread, InDesign will convert them to the transparency blend space.

   Remember, everything on a spread is converted to the blend space that is selected under the Edit menu. Keep an eye out for color shifts when you apply effects and know what color spaces your document is using. Make sure they are appropriate for your final output. That way you won’t get any unexpected color changes at the end of your workflow.

   You can also watch the video : “Assign the Transparency Blend Space” by David Blatner and “Understanding Transparency Blend Space” by Mike Rankin (both on LinkedIn Learning) to learn how this feature works.

   Hope it helps.

   —
   Adobe InDesign team

   The magic of InDesign’s effects all happens via Adobe’s transparency technology, which allows us to blend colors and detail from different objects. In order for it to all work there has to be a consistent color space for InDesign to use when it blends colors. This is called the Transparency Blend Space and it’s really important that you understand it in order to get the most out of InDesign’s effects. When we use transparency effects, InDesign compares different objects and combines their colors and detail. In order for objects to be blended, they have to be in the same color space. So when you apply transparency, InDesign converts everything on a spread to the Transparency Blend Space, regardless of whether that object is actually involved in the effect. And it’s important to note that when we say things are converted, we don’t mean that InDesign alters your placed files; they… more

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   Caitlin Curbello commented  ·  Apr 25, 2019  ·  Edit…  ·  Delete…

   Must add - any new effect I add to any object changes the color of the other objects on the layout (drop shadow, etc.).

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   Caitlin Curbello commented  ·  Apr 25, 2019  ·  Edit…  ·  Delete…

   Transparency Effect bug - Effects all objects on spread instead of only selected object.

   I select a regular rectangle shape object with a solid fill (yellow) and change it's transparency under the effects menu to 75%. I have another regular rectangle object with a solid fill (turquoise) that's transparency is 100%. However, once I change the yellow rectangles transparency to 75%, the turquoise rectangle appears as if I've also changed it's transparency to 75% - not the desired result. When I change the yellow rectangle object back to 100% transparency, the turquoise rectangle object appears at it's original 100% transparency state. The change in transparency also effects the color of other objects on the same layout.

   Adobe Indesign 2019 v 14.0.2
   Windows 10

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   Caitlin Curbello commented  ·  Apr 25, 2019  ·  Edit…  ·  Delete…

   I'm having the same issue, but it's never been an issue before...? I'm currently running Indesign 2019.

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