Gray line around image placed in Illustrator 2020

[hamiterj]

Please see attached screenshot, which I hope will explain things. I rarely work with photo images in Illustrator, but the vendor requires final art be in .ai. BTW, this is for a trade show booth around 6ft X 4ft, and the art has to be 100% of full size. I'm working with transparent TIFFs.

Is the thin gray line appearing around the image just an Illustrator thing and won't print? It goes away on Overprint Preview, but not if they're embedded. They don't appear in the PSD file I've saved them from. 

I'm sure there's a simple answer. Thanks in advance for any help! 

[Ton Frederiks]

Is there a difference when viewed in CPU Preview compared to CPU Preview? (use Cmd or Ctrl E to switch).

[hamiterj]

Thanks, Ton. Yes, it goes away when I switch from GPU to CPU.

[Ton Frederiks]

Generally the GPU Preview is fast but less accurate.

As far as I know artifacts shown only in GPU Preview won't print or export.

The CPU Preview is more reliable, you may try an export to an image file to see if it is visible.

[hamiterj]

Thanks again! I'll try the export and will also talk to the vendor's production people as well. I appreciate your help!

[hamiterj]

BTW, I exported to both JPEG and PNG at 300 ppi and didn't see the outlines. Thanks!

[Ton Frederiks]

Good to hear that, I think that you safely can assume that it is a preview problem only.

[Sandra36378115u57n]

This information really help because I encountered the same problem. I am really surprised as the solution was as simple as CTRL + E. Thank you so much for this information