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K
Kae5ECF
Participating Frequently
January 5, 2023
Question

Acrobat no longer optimizing image heavy PDFs

  • January 5, 2023
  • 1 reply
  • 2243 views

I've been using Acrobat for several years to create PDFs of graphic novels, and have optimization settings that reduced the file size without degrading the quality of the images like most third party optimization programs and websites do. The attached settings have worked perfectly for a long time, dropping a 250Mb file to closer to 40Mb.

 

Unfortunately they've just stopped working out of the blue. I assume there must have been some kind of update, but now there's zero change in file size, which is a big problem for my job. I've tried uninstalling and reinstalling with no luck.

 

Can anyone offer any insight or suggestions for other settings I can adjust to reduce file size without compromising image quality?

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1 reply

Amal.
Community Manager
Amal.Community Manager
Community Manager
January 6, 2023

Hi @Kae5ECF 

Hope you are doing well and sorry to hear that

Is this an issue with a particular PDF file or with all the PDFs? Please try with a different PDF file and check. If the file is stored on a shared network/drive please download it to your computer locally and then try again.

What is the version of the Acrobat DC are you using? To check the version go to Help > About Acrobat and make sure you have the recent version 22.3.20281 (Mac) or 22.3.20282 (Win) 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.

Please try to reset the Acrobat preferences as described here https://community.adobe.com/t5/acrobat-discussions/how-to-reset-acrobat-preference-settings-to-default/td-p/4792082

You may also try to create a new test user profile with full admin rights in Win or enable the root account in MAC and try using the application there and check.

Also, go through the help page https://helpx.adobe.com/acrobat/using/optimizing-pdfs-acrobat-pro.html and see if that works.

 

Note: Masked images and images with a size of less than 16-by-16 pixels are not downsampled.

 

Regards

Amal

    K
    Kae5ECFAuthor
    Participating Frequently
    January 9, 2023

    This is happening with multiple PDFs. I even repeated the process with a PDF I'd made in the pass that optimized properly, and this time it didn't.

     

    I've got the most up to date version; 2022.003.20282 for Windows. I'll try repairing and resetting and come back to let you know if it worked or not. Thanks!

    K
    Kae5ECFAuthor
    Participating Frequently
    January 9, 2023

    None of these options worked for me, unfortunately. Still zero change in file size, even using the exact same source files that I know worked before.

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