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C
chesterprinting
Participant
February 21, 2020
Question

Lines appearing in effects Shadow & Gradient

  • February 21, 2020
  • 3 replies
  • 4146 views

I've been experiencing lines in effects in Indesign. Black lines in shadows and the same type of lines when a gradient or feather is used. I'm running the most updated version of InDesign in Windows 10.

Any Ideas?

This topic has been closed for replies.

3 replies

Lukas Engqvist
Community Expert
Lukas EngqvistCommunity Expert
Community Expert
March 16, 2021

These kind of artifacts are usually caused by mathimatical rounding errors. Try using CPU preview instead of GPU preview.

Also would be good to know if you are using high quality preview.  (note that if you have overprint preview you can only view CPU preview, but would be interesing to know if this problem persists in Overprint preview)

J
JDMcr
Participating Frequently
March 16, 2021

Hi, thanks for the response.  Does this change (grom GPU to CPU) impacts the performance? Cause I normally activate the GPU option when possible to accelerate the process and take advantage of the resources.

Lukas Engqvist
Community Expert
Lukas EngqvistCommunity Expert
Community Expert
March 16, 2021

Do you want it fast or do you want it exact? GPU is faster (is preformance speed). GPU is great for games where fluidity is more important. Compare the two and see if the speed loss is worth the increase in accuracy. 

L
Community Expert
LaubenderCommunity Expert
Community Expert
March 16, 2021

Hi JDBlender,

are that black lines also visible in an exported PDF/X-4 where you did not downsample the images?

Is the image placed and linked to a file? Or did you copy/paste the image from e.g. PhotoShop to your page?

 

Thanks,
Uwe Laubender

( ACP )

    Willi Adelberger
    Community Expert
    Willi AdelbergerCommunity Expert
    Community Expert
    February 21, 2020

    It looks like the baseline grid.

    J
    JDMcr
    Participating Frequently
    March 15, 2021

     Any news on this? I have the same problem but it is not the baseline grid, as you can see I left the grid but there are some additional black lines in both shadow and transparency effects.

     

    Thanks!

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