White pixel lines appearing on png's at intersecting line points on tables created in indesign

New Here ,
Dec 21, 2020

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I'm getting these white pixel lines as shown in graphic - when exporting tables from inDesign.

They don't show when I turn anti-alias off - but this gives the png a hard edge to the graphic which I dont want.

How do I fix this please?

example.pngScreen Shot 2020-12-22 at 8.20.17 AM.png

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Correct answer by rob day | Adobe Community Professional

Also, the interpolation method matters, try Bilinear. Here’s Auto vs. Bilinear 576ppi to 144ppi:

 

Screen Shot 22.pngScreen Shot 21.png

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White pixel lines appearing on png's at intersecting line points on tables created in indesign

New Here ,
Dec 21, 2020

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I'm getting these white pixel lines as shown in graphic - when exporting tables from inDesign.

They don't show when I turn anti-alias off - but this gives the png a hard edge to the graphic which I dont want.

How do I fix this please?

example.pngScreen Shot 2020-12-22 at 8.20.17 AM.png

Adobe Community Professional
Correct answer by rob day | Adobe Community Professional

Also, the interpolation method matters, try Bilinear. Here’s Auto vs. Bilinear 576ppi to 144ppi:

 

Screen Shot 22.pngScreen Shot 21.png

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Dec 21, 2020 0
Adobe Community Professional ,
Dec 21, 2020

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The anti-aliasing pixels are showing where the cell borders meet. You could try turning off anti-aliasing and exporting at a higher resolution than needed followed by a downsample—the downsample will create an ati-aliasing effect. Here I exported at 4x the desired resolution followed by a downsample to the target res:

 

Screen Shot 16.png

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Dec 21, 2020 1
New Here ,
Dec 21, 2020

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Thanks Rob - a good solution that's going to save a lot of hours work. I was selecting and filling the areas before. Upwards of  20-30 steps before depending how many insecting points there were on the table. Now just 1 exrta step. Regards

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Dec 21, 2020 0
Adobe Community Professional ,
Dec 21, 2020

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Also, the interpolation method matters, try Bilinear. Here’s Auto vs. Bilinear 576ppi to 144ppi:

 

Screen Shot 22.pngScreen Shot 21.png

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Dec 21, 2020 1