Missing transparency in placed PDFs

Explorer ,
Dec 22, 2020 Dec 22, 2020

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I do have issues with Illustrator displaying transparencies of placed PDFs as solid.

 

Steps to reproduce:

  1. Open a new document.
  2. Draw two partially overlapping rectangles with different colors.
  3. Set he opacity of the frontmost rectangle to 50%.
  4. Save this document as a PDF with setting Illustrator Standard (see attached file).
  5. Oben a second document.
  6. Place the PDF file.

 

Expected result:

The topmost rectangle should be displayed with transparency.

 

Actual result:

The topmost rectangle is not transparent.

 

If you save the document with the placed PDF itself as PDF file, the rectangle is still transparent, so this is a display issue of Illustrator. Now it’s getting really weird: If you place this second PDF file in a new Illustrator document … all looks fine. 

 

I am using Illustrator 25.0.1 on MacOS 10.14.6.

 

TOPICS
Bug, Import and export

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correct answers 2 Correct Answers

Adobe Community Professional , Dec 22, 2020 Dec 22, 2020
Hi suprmllr can you post the link to Uservoice here? I found why it sometimes works and sometimes doesn't. The CMYK PDF placed linked in a CMYK document gives the problem. Embedding solves the problem. When the CMYK PDF is placed linked in an RGB document there is no problem. The problem can be repeated in older Illustrator versions.

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Explorer , Dec 23, 2020 Dec 23, 2020

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Adobe Community Professional ,
Dec 22, 2020 Dec 22, 2020

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Placing in InDesign looks fine.

Placing as embedded in Illustrator looks fine.

Placing linked looks wrong, but turning on Overprint Preview looks correct.

You may want to mention it here:

https://illustrator.uservoice.com

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Adobe Community Professional ,
Dec 22, 2020 Dec 22, 2020

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I tried it in older versions and it looks fine.

After that I tried placing in Illustrator  2021 again and the problem disappeared.

It is a strange problem.

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Explorer ,
Dec 22, 2020 Dec 22, 2020

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Hi Ton, thanks for making some more tests and the link to the feedback form. I have posted the issue there.

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Adobe Community Professional ,
Dec 22, 2020 Dec 22, 2020

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Hi suprmllr

can you post the link to Uservoice here?

I found why it sometimes works and sometimes doesn't.

The CMYK PDF placed linked in a CMYK document gives the problem. Embedding solves the problem.

When the CMYK PDF is placed linked in an RGB document there is no problem.

The problem can be repeated in older Illustrator versions.

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Explorer ,
Dec 23, 2020 Dec 23, 2020

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