Warning in AI "An unknown shading type was encountered"

Forum|Forum|3 years ago
March 17, 2022
3 replies
14195 views

I am trying to open attached PDF file in AI 2022, while opening this file I am getting warning "An unknown shading type was encountered."

All other apps like Acrobat, InDesign, PhotoShop, Preview opens this file without any issue and gradient color is also proper.

Attached screenshot for reference, in layers gradient color seen is proper where as preview is showing blue color for graident.

Can any suggest why this is happening like this in AI, any AI bug?

Graphics.pdf

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R

RajaYogash2015

Participant

Hi Xpertios, I also had this problem.... are you solve this? pls help me.

Ton Frederiks

Community Expert

You cannot solve it. Illustrator is not designed to edit every kind of PDF.

Larry G. Schneider

Community Expert

Preview doesn't use the full spectrum of PDF specifications to display the file. It looks like the gradient is a freeform gradient which becomes non-native art when reopened in AI.

Ton Frederiks

Community Expert

It was not created in Illustrator (encoded by macOS Version 10.15.7 (Build 19H2) Quartz PDFContext).

Other apps just display the content without trying to edit it.

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