[xep-support] Table borders rendered with different size

[David Tolpin]

> KJ> It doesn't matter if  I change the border size,
> KJ> the phenomenon is still there.
> KJ>  
> KJ> Is this a common  issue? I can send an example PDF if necessary.
>
> I would appreciate if you could send a sample fo and pdf offlist to
> support at renderx.com.
> Does the problem exist with 3.8.4?

Hi,

to fix this behavior, you'll need a display with higher resolution; for 
normal human eyes something about 300dpi will do; while your display is 
100dpi at best. Consider a line 3.6 pixels wide. It will be 4 pixels 
wide if starts exactly at the beginning of  a pixel, but 3 pixels wide 
if it starts somewhere at 0.7 of a pixel and ends at 4.3: pixels at 
both ends are less than half black and will be painted white; Acrobat 
Reader does not antialias subpixels in lines.

When you print the document, the line looks much better, because the 
printer resolution is significantly higher and the error is beyond the 
capacity of your sight.

Of course, you may fine-tune all dimensions in a document so that all 
lines fall into the pixel grid at some resolution (or magnification), 
but then it will fall off the grid at other resolutions anyway.

David Tolpin

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