sorry I am a new guy here and in illustrator, I am gonna make a low opacity and blur object that effects on every object behind itself. like below finally enter image description here

  • What have you tried? But no elementary this can not be done, you can do it in a convoluted manner but it will not do what you want. – joojaa Feb 20 '18 at 15:30
  • @Ovaryraptor yes but it relies on copying, ist not a oject that blurs what is behind. But that the best you can do. – joojaa Feb 20 '18 at 15:35

I'll try to explain it so it's easy to follow.

  • Duplicate the image and paste in front of itself Ctrl+C, Ctrl+F

  • Draw a square polygon the size I want the blur to be

  • Select both my new polygon and the image I duplicated and press Ctrl+7 to create a clipping mask
  • Then to this new group, I would apply a gaussian blur
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  • something else, when I blue the square polygon, it is out of shape, out of its frame you know, it no longer has its sharp edge – Farid S Feb 20 '18 at 15:55
  • @FaridS Thats why you need a mask as described in link of Ovaryraptor's comment Point is that object blurs itself, if you want to blur others blur a group or something and opacity mask or clip it with object – joojaa Feb 20 '18 at 16:00
  • I think you must apply the blur to the picture only before masking. – LeoNas Feb 20 '18 at 16:01
  • and your fill object must be bigger than your clip. But as i said not exactly a object that blurs what is behind it. – joojaa Feb 20 '18 at 16:02
  • I've done it. I swear I just forgot it :D. tnx – Farid S Feb 20 '18 at 16:11

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