Why Is Adobe Acrobat So Slow? 

Usually, the answer to “Why is Adobe Acrobat so slow?” is due to large file sizes or a corrupted cache memory, which incrementally increases processing drain. If closing and reopening the file doesn’t work, here is what’s happening and some simple solutions you can try.

Why Is My Adobe Acrobat So Slow and How to Fix It?

Adobe Acrobat is arguably the premier PDF viewer and editing software to the point it’s become the go-to default for new users. But decades of updates and feature creep mean that the software is bulky and has a lot of utilities, each with its own processing requirements.

Over time, you may see Adobe Acrobat slow down from memory issues, which becomes more noticeable when editing large files or ones with a lot of images inside. On a system with limited memory, performance may be affected when Acrobat is used alongside other demanding applications and large or complex PDF files.

Fix 1 – Turn Off Generative AI Features

New versions of Adobe come with generative AI for editing. However, this requires an internet connection, and the AI actively makes Adobe Acrobat slow by virtue of needing more processing. If you’re not using the feature, you can turn it off.

Step 1. Close any open documents. On Windows, go to “Menu” > “Preferences.” On macOS, go to “View” > “Preferences.”

Step 2. Select the “Generative AI” tab, then uncheck “Enable generative AI features in Acrobat.” You can also uncheck “Show AI summary” or similar options.

Step 3. Click “OK,” then restart Adobe.

Fix 2 – Change the Graphics Rendering Setting

Acrobat uses several rendering settings to control how PDF pages and graphics are displayed. In some cases, adjusting these settings can help troubleshoot display or performance problems when wondring “Why is my Adobe Acrobat so slow?”

Step 1. Open “Preferences.”

Step 2. Go to the “Page Display” tab and the “Rendering” section.

Step 3. Avoid disabling every rendering option at the same time. If you are troubleshooting a display or performance problem, try changing one setting at a time and test Acrobat after each change.

Step 4. Click “OK,” then test Acrobat to see whether the change fixes the problem.

Fix 3 – Use Local Files Instead of the Cloud

A PDF from OneDrive, SharePoint, Google Drive, or any other sharing service is never really open on your machine. Instead, Acrobat is reading and writing across a connection all the while you edit. This can lead to latency issues and slow your work.

Instead, use local storage. In some cases, make sure that the folder isn’t even backed up by OneDrive, and then offload the file there later if you need it.

Fix 4 – Remove Other Programs

In some cases, Adobe Acrobat being slow isn’t even due to Adobe itself. The program does take up a bit of processing power, but other background programs can do the same. In this case, use the Task Manager and close any background processes that are taking up a lot of CPU time (you can sort by CPU usage).

If you spot a process you do not recognize, check what it is before ending it, as some processes are required for Windows or other software to function correctly.