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How do I create a transparent stroke above other shapes?

Aug 14, 2012 8:31 PM

Tags: #illustrator #problem #transparent #stroke



I have the following shape:




What I'm trying to do is give the blue box a transparent stroke that will "cut through" the red boxes and show the background underneath, whatever that may be ...white, another color, or a photo.


I can easily achieve this when I give it a white stroke. It'll look like this:




When I change to a background color other than white or even a photo however, I end up with this problem:




How do I make it so that I have a transparent border (not white) around the blue box? Which effectively cuts a "transparent stroke" (space) between the parts where the blue and red boxes intersect?


Thank you very much for any advice I've been trying to get this done for days without success, so you're my last hope!

  • Currently Being Moderated
    Aug 14, 2012 9:32 PM   in reply to shannont99

    Window>Appearence or shift-F6. Once the appearence panel is open, Twirl down the icon next to the word Stroke, Click Opacity and adjust it to your hearts desire...

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    Aug 15, 2012 12:10 AM   in reply to shannont99

    1. Select the blue rectangle with the white stroke, then do as Silkrooster suggests to set the stroke's opacity to 0. The white stroke will disappear.

    2. Select all three rectangles and group them.

    3. With the group selected, the Appearance panel should show:




    Click on Opacity. In the box that opens, click the box next to Knockout Group until the check/tick mark appears. If the dash appears, click again.

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    Aug 15, 2012 2:04 PM   in reply to shannont99

    You're welcome.

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    Apr 18, 2013 8:16 PM   in reply to tromboniator

    I have been trying to figure this out for so long! thank you Although I have one problem, when i import the file as an eps into my indesign document the whote lines appear again. Help! :/

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    Apr 19, 2013 8:45 AM   in reply to tahlia russell

    Don't use EPS. This file format doesn't support transparency. You will have to use AI (with PDF content enabled) or PDF to get the transparency into ID.

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