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Fix Mac Running Slow After Installing Adobe Acrobat

Kushani NimanthikaKushani Nimanthika Oct 28, 2026 869 views

Question details

The user's Mac starts slowly, and documents take a long time to open or fail to open entirely after installing Adobe Acrobat.

How to Fix a Mac Running Slow After Installing Adobe Acrobat
Product
Adobe Acrobat
Device & OS
macOS High Sierra
Scenario
Booting up the Mac and attempting to open PDF or Office documents after a recent Adobe Acrobat installation.
Observed behavior
System boot times are severely extended, applications open sluggishly, and older files fail to open completely, whereas a similar Mac without Acrobat performs normally.
Before you start

Ensure you have backed up any critical documents and check your Mac's available storage space, as dangerously low disk space can exacerbate system slowdowns.

Solution 1Recommended

Update Software and Manage Startup Items

Ensure Acrobat, Creative Cloud, and macOS are fully up-to-date, and prevent Acrobat from automatically launching at startup to save system resources.

Adobe applications often install background processes that launch automatically upon system startup. On older Macs, these helper applications can consume significant memory and processing power, leading to system-wide sluggishness.

1
Update Adobe Acrobat

Open Adobe Acrobat or the Creative Cloud desktop app, navigate to the 'Help' menu, and select 'Check for Updates' to install the latest patches optimized for your macOS version.

2
Check macOS Updates

Click the Apple menu in the top-left corner, select 'App Store' or 'System Preferences', and install any available updates for macOS High Sierra.

3
Remove from Login Items

Go to Apple menu > 'System Preferences' > 'Users & Groups'. Select your user account, click the 'Login Items' tab, select Adobe Acrobat or Creative Cloud, and click the minus (-) button to remove them from startup.

Update Software and Manage Startup Items
Restart Required: After updating the software and changing your login items, restart your Mac to see if the boot speed improves.
Free Microsoft Office alternative

Use WPS Office as a Lightweight PDF and Office Solution for Mac

If heavy software like Adobe Acrobat is slowing down your older Mac, WPS Office offers a fast, lightweight, and completely free alternative. It includes a built-in PDF reader and editor alongside Word, Excel, and PowerPoint alternatives, requiring significantly fewer system resources.

  1. 1. Download WPS Office: Visit the official WPS website and download the macOS version of WPS Office.
  2. 2. Install the Suite: Run the downloaded installer and drag the WPS Office icon to your Applications folder.
  3. 3. Open PDFs Seamlessly: Right-click any PDF file, select 'Get Info', and set WPS Office as the default application to enjoy lightning-fast loading speeds.
Lightweight architecture ensures smooth performance and fast document loading, even on older Macs.Built-in PDF tools allow you to view, annotate, and manage PDFs without installing heavy standalone PDF software.Fully compatible with Microsoft Office formats (DOCX, XLSX, PPTX) and standard Adobe PDF files.All-in-one suite saves valuable disk space and memory compared to running multiple heavy applications.
microsoft office alternative - wps office

Frequently Asked Questions

Why does Adobe Acrobat slow down my older Mac?

Modern versions of Adobe Acrobat and Creative Cloud are heavily optimized for newer hardware and 64-bit architecture. On older machines, continuous background processes like Adobe Update Service and Creative Cloud syncing can cause severe system lag.

Will completely uninstalling Acrobat restore my Mac's speed?

Yes, using the official Adobe uninstaller to completely remove Acrobat and the Creative Cloud desktop app usually stops the heavy background processes and immediately restores your Mac's normal startup and operational speed.

Can I just use Mac's built-in Preview for PDFs?

Yes, Apple's built-in Preview app is highly optimized for macOS and can handle basic PDF viewing and minor annotations without slowing down your computer. However, for more advanced editing features, lightweight third-party tools like WPS Office are a great choice.

How do I completely remove Adobe Acrobat from my Mac?

Do not simply drag the application icon to the Trash, as this leaves background helpers running. Go to your Applications folder, open the Adobe Acrobat folder, and double-click the official Acrobat Uninstaller to ensure all associated services are properly removed.