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Export JPG shows artifacts in Illustrator

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When I export from Ai to JPG on every setting I get artifacts of white horizontal lines through my art. Exporting a PDF usually creates file sizes that are too big to email, even when I reduce as much as I can. Is there any way to get rid of these artifacts?

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P

packaging specialist

Inspiring

Try to rasterize artwork in AI first and then export jpg

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C

christophem45831419

Participating Frequently

Hi,

I don't know if this can be considered a similar problem: I have an artifact when exporting a shape to a PNG format file using the "Save for Web (Legacy)" option. 
In detail: when the original shape touches the edge of the work surface, an artifact appears at the bottom of the file: part of the shape is duplicated. 
There is no problem with the "Export for screens" option. 
Personally, I prefer to use the legacy function but this bug is annoying (I'm using the latest AI 2024 version)

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Anubhav M

Community Manager

Hello @christophem45831419,

We understand that encountering technical issues can be frustrating. I tried replicating this on my end but was unable to do so. Would you mind sharing some more details, like the exact version of the OS/Illustrator and links to a sample Ai and exported files, so we can investigate this further?

Looking forward to hearing from you.

Thanks,

Anubhav

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christophem45831419

Participating Frequently

Hello Anubhav,

I'm using AI 28.3 + Window 11.
My test file contains a simple circle drawn on an artboard that measures exactly the same dimensions as the circle.
Exporting it to PNG using Save for web (legacy) should produce the artefact.
Update : unchecking clip to artboard option resolve the problem, but modify the height of the file (as you can see on the screenshot) and leaves a space at the top of the image.

Thank you

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Ton Frederiks

Community Expert

Can you share an example .ai file?

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Ton Frederiks

Community Expert

Are these pattern fills?

Did you try "Art Optimized" for Anti-aliasing in the JPEG export options?

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B

Brent1515

Participant

I did “art optimized” on that attachment.

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Rishabh_Tiwari

Legend

Hi Brent,

Sorry to hear about the trouble. I'd request if you can share a few more details like:

The exact version of Illustrator and the Operating System.
Do these artifacts appear on every file exported as JPG?
Could you please share a few screenshots of what exactly is happening at your end?

Regards

Rishabh

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B

Brent1515

Participant

We are using Adobe Illustrator 23.1.1 and macOS 10.14.6.

No, they don't appear on every file. But some have the issue no matter how high we put the quality settings.

The following demonstrates the artifacts I'm talking about. You can see dotted horizontal white lines in the garments. It's critical these images are accurate because we need to show these images to customers.

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Lukas Engqvist

Community Expert

Do these fills contain a pattern? It could be a moire and not a JPG artefact. If you have a pattern that neens to be translated to a pixel format you are likely to have patterns like this, you may be able to minimise them by blurring the pattern. Maybe even rasterising the objects at a different resolutinon before exporting to jpg can veil the artifacts.

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