Fix Adobe Acrobat Not Opening a Second PDF from Windows Explorer
Question details
The user is unable to open a second PDF file by double-clicking it in Windows Explorer while Adobe Acrobat DC is already running.

- Product
- Adobe Acrobat DC
- Device & OS
- Windows 10
- Scenario
- Opening multiple PDF files sequentially from the Windows Explorer file manager.
- Observed behavior
- The first PDF opens normally, but double-clicking a second PDF results in no action. The subsequent file can only be opened by right-clicking and using the context menu.
Restart your computer and open the Windows Task Manager to ensure there are no stalled Acrobat background processes blocking the application from accepting new file-open commands.
Repair the Adobe Acrobat Installation
Using the built-in repair tool can fix broken registry keys or missing startup components that prevent Acrobat from handling multiple instances.
Acrobat relies on dynamic data exchange (DDE) and specific registry configurations to pass subsequent files into an already active application window. If these files become corrupt, the application will ignore new double-click commands.
Open Adobe Acrobat DC from your Start menu or desktop shortcut.
Navigate to the top menu bar, click on 'Help', and select 'Repair Installation' from the dropdown list.
Wait for the repair process to finish, restart your Windows 10 computer, and then go to 'Help' > 'Check for Updates' to install the latest software patches.

Reset Acrobat Preferences
Clearing corrupted user preferences can resolve multi-instance loading bugs without requiring a full software reinstallation.
Re-register the Default PDF Application
Re-establishing Acrobat as the default PDF handler forces Windows 10 to rewrite the file association instructions.
Open Multiple PDFs Seamlessly with WPS Office
If you are tired of troubleshooting application glitches just to open multiple files, try the built-in PDF reader in WPS Office. It effortlessly opens multiple PDFs in a convenient, browser-like tabbed interface without freezing or failing to load.
- 1. Download and Install: Download the free WPS Office suite from the official website and install it on your Windows PC.
- 2. Set as Default PDF Reader: Right-click any PDF file, select 'Open with > Choose another app', pick WPS Office, and check the 'Always use this app' box.
- 3. Open Multiple Files: Double-click as many PDF files as you need from Windows Explorer. They will all open instantly in neat tabs within a single WPS window.

Frequently Asked Questions
Why does Acrobat only open the first PDF I click in Windows Explorer?
This glitch is typically caused by a stalled background process (Acrobat.exe), a corrupted user preference file, or a broken Dynamic Data Exchange (DDE) communication between Windows Explorer and the Acrobat software.
How do I open a second PDF if double-clicking doesn't work?
As a temporary workaround, you can right-click the second PDF and select 'Open with > Adobe Acrobat', drag and drop the file directly into the already open Acrobat window, or use the 'File > Open' menu inside Acrobat.
Will reinstalling Acrobat fix the file opening issue?
Yes. Completely uninstalling Acrobat, restarting your computer, and reinstalling the latest version usually resets all registry keys and file associations, resolving most multi-file opening issues.




