How to Fix Adobe Acrobat DC Taking Too Long to Open or Close PDFs
Question details
The user is experiencing extremely slow performance and freezing when opening or closing PDF files in Adobe Acrobat DC.
- Product
- Adobe Acrobat DC
- Device & OS
- not provided
- Scenario
- Opening or closing standard PDF documents.
- Observed behavior
- The application becomes unresponsive, freezes, or takes an unusually long time to open or close files, with reinstallation only providing temporary relief.
Ensure your computer meets the minimum system requirements for Adobe Acrobat DC and restart your device to clear out any temporary background processes that might be hoarding system resources.
Disable Protected Mode and Third-Party Plug-ins
Protected Mode and outdated plug-ins are common culprits for Acrobat DC performance issues. Disabling them temporarily can identify if they are causing the slowdown.
Acrobat's Protected Mode is designed to run files in a restricted environment for security. However, on certain system configurations, this sandbox environment can cause severe delays or application freezes during startup.
Launch Acrobat DC, click on 'Edit' in the top menu bar, and select 'Preferences' from the dropdown list.
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'. A warning prompt may appear; click 'Yes' to confirm, then click 'OK' at the bottom.
Close Adobe Acrobat DC completely and reopen it to see if the PDF files load faster.
Clear Acrobat Preferences and Temporary Files
Corrupted preference files or an overloaded system cache can severely impact Acrobat's loading speeds.
Check External Factors (Network, Cloud, and Antivirus)
PDF files stored on network drives, synced via cloud storage, or heavily scanned by antivirus can delay opening and closing times.
Open and Edit PDFs Instantly with WPS PDF
If Adobe Acrobat DC continues to freeze or load slowly, WPS PDF offers a lightweight, lightning-fast alternative. It allows you to open, read, edit, and convert PDF files instantly without draining your system resources.
- 1. Download WPS Office: Download and install WPS Office for free from the official website.
- 2. Set as Default: Set WPS PDF as your default PDF reader in your Windows or Mac system settings.
- 3. Open Instantly: Double-click any PDF file to experience instant, lag-free opening and editing.
Frequently Asked Questions
Why does Acrobat DC freeze only when closing a PDF?
Acrobat DC might freeze upon closing if it is trying to sync changes to Adobe Document Cloud, or if a background process like an antivirus is holding onto the file. Disabling cloud sync or updating your antivirus exclusions can resolve this.
Will reinstalling Acrobat DC permanently fix slow loading times?
Usually, no. Reinstalling often leaves corrupted registry keys or user preference files intact. It is better to clear the Acrobat preferences folder and temp files manually before attempting a fresh installation.
Can damaged fonts cause PDFs to open slowly?
Yes, if a PDF uses embedded system fonts that are corrupted, Acrobat may hang while attempting to render the text. Removing recently installed fonts or repairing your system font folder can fix this specific delay.
Is there a faster alternative to opening PDFs if Acrobat keeps failing?
Yes, using a lightweight PDF reader like WPS PDF can bypass Adobe-specific loading issues. WPS PDF launches quickly and handles standard PDF files effortlessly without the heavy background processes required by Acrobat DC.
