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Grayscale JPG (imported) appears washed out when saved as PDF

New Here ,
Aug 21, 2020

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A grayscale JPG image (Gray color model), imported into an Illustrator document, appears washed out and partially transparent when the Illustrator document is saved as PDF.

 

This issue has existed in multiple versions of Illustrator. I'm new to this forum, but I try to attach an example grayscale JPG (Gray color model) as an example. You can duplicate this issue in your own Illustrator (I am on Mac) by doing the following steps:

  1. Open a new document in RGB Color Mode.
  2. Import grayscale JPG (Gray color model) onto the page.
  3. Save document as PDF. Output will appear very washed out.

 

This seems to be related to transparency. If you put a black vector object on the page, drag the grayscale JPG over it, and save, then you will see the object through the JPG image in the PDF output.

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Bug, Import and export

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Grayscale JPG (imported) appears washed out when saved as PDF

New Here ,
Aug 21, 2020

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A grayscale JPG image (Gray color model), imported into an Illustrator document, appears washed out and partially transparent when the Illustrator document is saved as PDF.

 

This issue has existed in multiple versions of Illustrator. I'm new to this forum, but I try to attach an example grayscale JPG (Gray color model) as an example. You can duplicate this issue in your own Illustrator (I am on Mac) by doing the following steps:

  1. Open a new document in RGB Color Mode.
  2. Import grayscale JPG (Gray color model) onto the page.
  3. Save document as PDF. Output will appear very washed out.

 

This seems to be related to transparency. If you put a black vector object on the page, drag the grayscale JPG over it, and save, then you will see the object through the JPG image in the PDF output.

Topics

Bug, Import and export

Views

36

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Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
New Here ,
Aug 21, 2020

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I found three different solutions to this, although none of them are perfect:

  • When saving as PDF, select PDF 1.3 under "Compatibility." PDF 1.3 does not support transparency, so it somehow fixes this issue.
  • Open the image file in Photoshop or some other editor, convert to RGB color mode, and re-save as JPG. Then the image can be imported into Illustrator and saved as a PDF with no issue.
  • Open the image file in Photoshop or some other editor, and re-save as PNG-24. Then the image can be imported into Illustrator and saved as a PDF with no issue.

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Adobe Community Professional ,
Aug 22, 2020

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Is that a screenshot you attached?

 

Can you please show us screenshots of each step?

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Adobe Community Professional ,
Aug 22, 2020

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That is a strange bug.

The grayscale file behaves like a transparent object.

But only when the file is embedded.

If it is linked it behaves as expected.

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Adobe Community Professional ,
Aug 22, 2020

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That seems to have started with CC 2019, 2018 and earlier work fine.

You may report it here:

https://illustrator.uservoice.com

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