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Error message "File is already compressed" when trying to compress PDF in Adobe Acrobat

New Here ,
Mar 03, 2024 Mar 03, 2024

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Hello,

 

I am encountering an issue while trying to compress a PDF file using Adobe Acrobat. Whenever I attempt to compress the file, I receive an error message stating "File is already compressed." However, I have not uploaded a compressed file and I am unable to proceed with the compression process due to this error.

I have tried compressing various PDF files, but the same error message appears consistently. I have also made sure that the files I am attempting to compress are not already compressed.

 

I would appreciate any assistance or guidance on resolving this issue. Is there a way to overcome this error and successfully compress the PDF files?

 

Thank you in advance for your help.

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Create PDFs , PDF

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Adobe Employee ,
Mar 18, 2024 Mar 18, 2024

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Hi there

 

Hope you are doing well and sorry for the delay.

 

Is this an issue with a particular PDF file or with all the PDFs? Please try with a different PDF file and check.

 

What is the version of the Acrobat DC you are using? To check the version go to Help > About Acrobat and make sure you have the recent version 24.01.20604 installed. Go to Help > Check for updates and reboot the computer once.
 
Also try to repair the installation from the help menu (Win Only) and see if that works.

 

Let us know how it goes.

 

~Amal

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Community Expert ,
Mar 18, 2024 Mar 18, 2024

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Sorry for the late reply. You say you have not uploaded a compressed file, are you are able to compress a file that you have not yet uploaded? If so, where are you uploading the file? It's possible compression is applied to the file after uploading. The PDF/X standard prohibits certain types of compression, try saving the downloaded pdf as PDF/X-4 (File> Save as other> PDF/X> Settings), then try to compress. I assume you are using the Optimizer tool to apply your compression, if PDF/X does not help, try removing the compression with the optimizer tool (see attached screen shot), also try the optimizer setting "Make compatible with: Acrobat 8.0 and later". If you are still having issues, try the preflight check or fixup also shown on the screen shot. Tools> Print production> Preflight.

compression.png

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