Knock out objects within a group – Adobe InDesign User Manual
Page 662
Facebook posts are not covered under the terms of Creative Commons.
Note:
4. In the Effects panel, select Isolate Blending. (If the option is not visible, select Show Options in the Effects panel menu.)
You can isolate the blending of objects in a PDF file that contains blending modes. First, place the PDF file with the Transparent
Background option selected in the Place PDF dialog box. Then apply the Isolate Blending option.
Knock out objects within a group
You use the Knockout Group option in the Effects panel to make the opacity and blending attributes of every object in the selected group knock
out—that is, visually block out—underlying objects in the group. Only objects within the selected group are knocked out. Objects beneath the
selected group are still affected by the blending or opacity that you apply to objects within the group.
It is important to understand that you apply the blending modes and opacity to the individual objects, but apply the Knockout Group option to the
group.
Group with Knockout Group option deselected (left) compared to selected (right)
1. Apply the blending modes and opacity settings to the individual objects that you want to knock out.
2. Using the Selection tool, select the objects that you want to knock out.
3. Choose Object > Group.
4. In the Effects panel, select Knockout Group. (If the option is not visible, select Show Options in the Effects panel menu.)
Specify a color space for blending transparent objects
To blend the colors of transparent objects on a spread, InDesign converts the colors of all objects to a common color space using either the CMYK
or RGB color profile for the document. This blending space enables objects of multiple color spaces to blend when interacting transparently. To
avoid color mismatches between different areas of the objects on screen and in print, the blending space is applied for screen and in the flattener.
The blending space is applied only to those spreads that contain transparency.
Choose Edit > Transparency Blend Space, and then choose one of the document’s color spaces.
For a typical print workflow, choose the Document CMYK color space.
Adobe also recommends
657