Fix Adobe Acrobat Pro DC Taking Too Long to Open Multiple PDFs
Question details
The user is experiencing significant delays when attempting to open additional PDF files in Adobe Acrobat Pro DC, an issue that persists even after reinstalling the software.
- Product
- Adobe Acrobat Pro DC
- Device & OS
- not provided
- Scenario
- Opening multiple PDF files sequentially in Adobe Acrobat Pro DC.
- Observed behavior
- While the first PDF opens instantly, opening subsequent files takes more than ten seconds, whereas other PDF viewing applications open the same files without any delay.
Ensure you have administrative privileges on your computer, as changing Adobe Acrobat's security configurations and modifying application preferences may require elevated permissions.
Disable Protected Mode and Protected View
Temporarily disabling Adobe's security sandbox features can help identify if they are interfering with file loading times.
Adobe Acrobat uses Protected Mode to sandbox PDFs and prevent malicious code from executing. However, this feature can sometimes cause performance bottlenecks when opening multiple files in quick succession.
Launch Adobe Acrobat Pro DC, click on 'Edit' in the top menu bar, and select 'Preferences' (or press Ctrl+K).
In the left-hand pane of the Preferences window, scroll down and click on 'Security (Enhanced)'.
Uncheck the box next to 'Enable Protected Mode at startup' and set the 'Protected View' option to 'Off'. Click 'OK' to save the changes.
Close Adobe Acrobat Pro DC completely and reopen it, then try opening multiple PDFs to see if the speed has improved.
Disable Unnecessary Startup Plug-ins
Third-party or unnecessary plug-ins loading at startup can significantly slow down Acrobat's ability to process new files.
Clear Preferences and Check Antivirus Integration
Corrupted preference files or aggressive antivirus scanning can severely delay document rendering.
Open Multiple PDFs Instantly with WPS Office
If Adobe Acrobat Pro DC continues to lag, you can use WPS Office as a fast, lightweight, and reliable alternative. The built-in WPS PDF tool is optimized for speed, allowing you to open, view, and manage multiple PDF files instantly within a seamless tabbed interface.
- 1. Download WPS Office: Visit the official WPS website to download and install WPS Office for free on your device.
- 2. Launch WPS PDF: Open the WPS Office desktop application and click on the 'PDF' tab on the main home screen.
- 3. Open Multiple Files: Click 'Open' to select your PDF files, or simply highlight multiple PDFs in your file explorer and drag them directly into the WPS workspace to open them instantly in separate tabs.
Frequently Asked Questions
Why does Adobe Acrobat DC run background processes that slow down my PC?
Adobe Acrobat often runs background processes like the Adobe Collaboration Synchronizer to sync shared files and updates via Adobe Document Cloud. If your network is unstable or the sync hangs, it can consume system resources and slow down the opening of local PDF files.
Will turning off Protected Mode make my computer vulnerable to viruses?
Yes, Protected Mode is a security feature that creates a sandbox to prevent malicious code embedded in a PDF from affecting your operating system. It is generally recommended to only disable it temporarily for troubleshooting purposes.
Can my antivirus software cause Adobe Acrobat to open PDFs slowly?
Yes, aggressive real-time scanning by your antivirus software can delay the opening of PDF files, as the antivirus attempts to scan each file and the application's memory simultaneously. Adding Adobe Acrobat to your antivirus exception list can often resolve this.
