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Participant
April 29, 2025
Question

Performance Issues with Adobe Acrobat – Feedback and Request for Improvement

  • April 29, 2025
  • 2 replies
  • 515 views

Dear Adobe Support Team,

I’m writing to share ongoing performance concerns with Adobe Acrobat that are significantly affecting our workflow.

Across our office, we've found that PDFs open and operate very slowly in Adobe Acrobat, especially when handling files with detailed vector content such as architectural drawings or layered documents. In many cases, the app freezes during the "Preparing document for reading" process, making it practically unusable for our team.

As a result, most of us have stopped using Acrobat altogether. We now rely on Foxit Reader or even Microsoft Edge, which both handle the same files much more efficiently. On many occasions, we've even used online PDF merger tools simply to combine files — just to avoid the sluggish performance in Acrobat.

Given that Adobe Acrobat is an industry standard and a paid tool, we expected better performance and usability. We would appreciate it if this issue could be investigated and addressed in future updates, particularly regarding how Acrobat handles complex files and whether the reading mode can be streamlined or disabled by default.

We hope this feedback helps contribute to improvements, as we’d like to return to using Acrobat as our primary PDF tool.

 

Many thanks,

David Marcos

2 replies

Anand Sri Bhattacharya
Community Manager
Community Manager
August 7, 2026

Hello David!

 

I hope you are doing well. 

 

The “Preparing document for reading” delay is tied to reading/accessibility preparation in Acrobat.

 

Please try the following suggestions: 

  • Open Acrobat.
  • Go to Menu (Windows) | Acrobat (Mac) > Preferences > Reading.
  • Under Screen Reader Options, select ‘Only read the currently visible pages.
  • Under the same Preferences window, go to Page Display > Rendering, turn off Smooth Line Art and Smooth Images, Click Ok.
  • Restart Acrobat and test the same PDF and the performance.

 

If complex vector/layered files still lag or hang, please update Acrobat and restart the machine. To update, go to Menu > Help> Check for updates.

You can also repair the App’s installation files from: Menu > Help > Repair installation, then restart the app and the machine.

 

If the issue persists, please share the following information:

  • Acrobat version, check it from Menu > Help> About Adobe Acrobat,
  • OS version,
  • A sample PDF file,
  • Logs from the affected machine.

You may also refer to these articles and try the suggestions:

https://helpx.adobe.com/acrobat/using/viewing-pdfs-viewing-preferences.html 

https://helpx.adobe.com/acrobat/desktop/troubleshoot/performance-issues/acrobat-crashes.html

 

Thanks,

Anand Sri.

Legend
April 29, 2025

@David22008284fmxs


Hi David, 

 

Sorry for the troubled experience, and thanks for reaching out. 

To disable Acrobat from doing this, "Preparing document for reading". Launch Acrobat > Edit > Preferences > Accessibility, uncheck "Enable assistive technology support." Also, try tweaking the options under the same preference, "Override Page Display."

 

Let us know how it works, and we will discuss further afterwards.


~Tariq