Thin gray lines around illustrator graphic placed in InDesign

[hannahp41290366]

I don't know what it is, there is no gray line in the Ai file, it is unselectable, and it won't go away. The lines are very thin and are on the top and bottom of the map—see below. They are visible on both pdf and when printed (I am designing a new card game set to be released really soon and has over 400 cards). I can't change the shape of the content frame the graphic is placed in as it would be so tedious and I would have to change every card individually or re-place all graphics if I edit the master page, which will then rewrite all the cards and cost me precious time I don't have (the shape is the central, large, wavy, white oval)

I have tried EVERYTHING I could think of but nothing has seemed to work:

• I changed the Illustrator's color mode

• I added a stroke to the clipping mask in Illustrator

• I made the clipping mask smaller than its Illustrator artboard

• I made the clipping mask bigger than its Illustrator artboard

• I got rid of the clipping mask entirely

• I exported it as a pdf in every version of Acrobat

• I exported it as a png

• I exported it as a jpg

• I set the content frame with a fill color

• I set the content frame without a fill color

Does anyone else have this problem????

Please help!

[hannahp41290366 · Accepted solution]

So I found that if you print the exported pdf from Adobe Acrobat (which I hadn't tried before), without changing anything to any of the files themselves, the lines do not print. It's as it was said: just a display artifact. Thank you all for your help!

[ds76421298]

Just stumbled across this problem myself. It was really perplexing me, but after moving things around, deleting artboards, and so forth, I found that another artboard had been created underneath the artboard I was looking at. So what I was seeing as a thin horizontal line across one artboard was the bottom of that second artboard, layered underneath the first. 

This may or may not have been what happened to you, but perhaps worth a look if you run into it again. 

: DS

[prestonyoo]

Looks like this was the issue on my side, was seeing the same problems before and as you said, somehow an artboard was created overalying the original artboard. Thanks for your help!

[Jason Muxlow]

Nailed it and solved my problem. Thank you!