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Mile38453233exp4
Participating Frequently
July 6, 2024
Answered

Incorrect color shown in 3D PDF

  • July 6, 2024
  • 1 reply
  • 1854 views

I made a 3D model with CAD software and xonvert it into 3D PDF. But the color shown in 3D PDF is different from what I render in the CAD software.

 

What should I do in order to show the correct correct in 3D PDF ?

This topic has been closed for replies.
Correct answer Luke Jennings3

"You can adjust pdf color in Acrobat, but not the free Reader." Do you mean color can be adjusted if I upgrade to Pro version Adobe Reader ? It would be helpful if you could show the steps in making the adjustment ? 


Here is a link to a related discussion, I have included instructions on how to use a preflight fixup to adjust the midtones of a pdf (see the 9th reply), I believe this would work on a 3D pdf, although I have not tried it. Note, Acrobat is not an image editor, so don't expect to be able to make large changes, but you can lighten or darken the midtones, if you follow the instructions.

https://community.adobe.com/t5/acrobat-discussions/remove-background-in-acrobat-pro/m-p/14437633

 

1 reply

Luke Jennings3
Community Expert
Luke Jennings3Community Expert
Community Expert
July 7, 2024

What settings do you use to export to pdf from CAD? You may be converting to cmyk. To check the color space of your pdf content, go to Tools> Print Production> Output Preview, change the Simulation profile to Apple RGB (or one of the other RGB profiles), and Show: RGB, this will hide any elements that are not RGB.

M
Mile38453233exp4Author
Participating Frequently
July 8, 2024

Thanks for you answer. But there is no reply on clicking "Use Print Production"  ( plz see the attached image )

Also , if it is really related to CMYK , is it possible to change PDF setting to change it to RGB ?

 

Luke Jennings3
Community Expert
Luke Jennings3Community Expert
Community Expert
July 9, 2024

Output Preview is under "Print Production". But it doesn't have any reaction when I click on "use print production" in the list of "All tools". For CAS setting on PDF exporting , it doesn't show any information about RBG / CMYK. And please have a check on the attached comparison image between CAD & 3D PDF eported.

 

 

 

 

 

 

 

 

 

 

 


The color between the CAD screen shot and the pdf are actually not that different, when a black background is added. The pdf is showing increased shading which is probably making it look darker. I don't think it's an RGB issue, although RGB blue and CMYK blue can look similar. Your Output preview tool should look like my screen shot above. Here is an Adobe link with instructions how to use it: https://helpx.adobe.com/acrobat/using/previewing-output-acrobat-pro.html

 

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