I've tried to cut the outline of a circle, by using the knife tool, the shaper tool, all of the pathfinder tools(for example: minus back), and I couldn't find a way, to cut those lines correctly.

And this is the result whenever I try to cut this shape: enter image description here

When I'm using the clipping mark tool, its making the background to be much bigger then it should: enter image description here

2 Answers 2


Use clipping mask.

Create a rectangle above the curves, select it together with the curves, open "Object > Clipping Mask> Create Clipping Mask". Problem solved.

enter image description here

  • when i export the picture, to png for example, it has more background then it should have
    – Argaman
    Apr 14, 2017 at 8:37
  • Use file > save for web, don't use Export
    – Luciano
    Apr 14, 2017 at 8:38
  • @Argaman put a arboard around the size you need then you can specify export of that.
    – joojaa
    Apr 14, 2017 at 8:39
  • @joojaa I tested here, it exports the whole object if using File > Export. So it's artboard + save for web
    – Luciano
    Apr 14, 2017 at 8:41

One method is to use Object > Expand on the curved sections to turn them into a filled shape. Then you can use the Pathfinder "Intersect" function to trim them.

Screenshot using Pathfinder "Intersect"


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