I looked on this site (and other sites) for my answer but I couldn't find it. If it is here, I am sorry.

My problem is I made something and I want to print it on a bag. It is a city, outlined, and filled with black. And the streets and lakes are filled with white. Both on different layers. But if I am going to print it, the streets and lakes have to be transparant, so the color of the bag will come through it. But I just can't find out how to do it. Any suggestions?

(The streets/lakes are all individual paths, grouped together, the map itself is one path.)

The design itself. How it is ordered.

Thanks in advance! Kelly

2 Answers 2


Assuming all your roads are on a single layer and you want them all to be transparent (if not just group them and do the same to the group instead):

  1. Select the layer in the layers panel
  2. Set Opacity to "0%"
  3. Check "Page Knockout Group" in the Transparency panel menu

enter image description here

Regular Knockout groups are great for creating transparency and keeping everything editable; Page knockout groups are good for things like this since they knockout everything.

  • Select everything on your 'streets' layer.
  • Go to Object > Path > Outline Stroke
  • Open the Pathfinder window (with everything on that layer still selected) and hit Unite
  • Select the newly created, united shape and the shape on your 'map' layer
  • In the Pathfinder window hit Minus Front


  • one can keep them editable by usinf knockout groups..
    – joojaa
    Feb 24, 2017 at 14:27
  • @joojaa: True, but I'm trying to keep it simple. Maybe add your suggested method as an alternative answer?
    – Westside
    Feb 24, 2017 at 14:37

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