White lines where there should be none

New Here ,
Jan 07, 2021 Jan 07, 2021

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I created a post for instagram that for some reason when I posted I noticed a white like where there should be none.

Image 1 is a screen shot from instagram with black them - The white line is very visible. 

Image 2 is a screen shot from the windows 10 picture app - There's no white line.

Image 3 is a screen shot of the post in illustrator - The picture of the model is inside a mask and the text ellements are inside the boundries, so nothing should be cousing problems. 

Image 4 is again a screen shot from illustrator but this time, showing how the picture of the model is positioned inside the mask.

 

I've tried aligning by eye; creating a new document; making the picture inside the mask much bigger; making the post some pixels bigger 1085x1085. 

And what's worse, this phantom line is completly random. Some posts the line is all around, and others just in one side or framing the corner. 

I trully have no idea what I'm missing here. 

Help...

 

Image 1 - Instagram Screen Shot.jpeg

 

Image 2 - Windows Screen Shot.PNG

 

Image 3 - Illustrator Screen Shot 1.PNG

 

Image 4 - Illustrator Screen Shot 2.PNG

   

 


[ attachment inserted as inline image by moderator ]

 

 

 

 

TOPICS
Draw and design, Print and publish, Type

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Engaged ,
Jan 07, 2021 Jan 07, 2021

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Hi Luthyn, I've had this issue many times, and it is usually (in my case) caused by poor gridfitting—the way pixels line up with the vector points.

 

The solution I use is to:

  1. Set the document units to pixels
  2. Set the position and size of the artboard to whole units of pixels
  3. Adjust artwork so that it aligns to the pixel grid

 

It helps to turn on Pixel Preview (View menu) and use the Transform Palette to check the position of objects and points. Using the Control Palette's "Align to pixel grid" option can sometimes help, but sometimes hinder, this process (probably due to my inexperience).

 

- Mark

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