PDF Opening Issues

Fix Adobe Reader Cannot Open Two PDFs from a Network Drive

Tauseeq MagsiTauseeq Magsi Nov 3, 2026 868 views

Question details

The user is unable to open multiple PDF files simultaneously from a network drive using Adobe Reader.

How to Fix Adobe Reader Cannot Open Multiple PDFs from a Network Drive
Product
Adobe Reader
Device & OS
not provided
Scenario
Attempting to open a second PDF file stored on a network drive while one PDF is already open.
Observed behavior
The first PDF opens successfully, but the second PDF fails to open, often related to Protected Mode conflicts or network permissions.
Before you start

Ensure you have a stable connection to your network drive and that you possess the necessary read and write permissions for the folder containing the PDFs.

Solution 1Recommended

Update Adobe Reader and Test Files Locally

Updating to the latest version fixes known bugs, while testing locally isolates whether the issue is network-related.

Software updates often contain patches for known network compatibility and security feature bugs. By updating Adobe Reader and copying the files to your local drive, you can determine if the network drive itself is causing the restriction.

1
Check for updates

Open Adobe Reader, navigate to the top menu, and click on 'Help', then select 'Check for Updates'. Install any available updates and restart the application.

2
Download PDFs locally

Navigate to your network drive, copy the two PDF files you want to open, and paste them into a local folder such as your Desktop.

3
Test local access

Double-click both local PDF files to open them simultaneously. If they open successfully, the issue is tied to network policies or permissions.

Update Adobe Reader and Test Files Locally
Seamless PDF Viewing

Open Multiple PDFs Effortlessly with WPS Office

Bypass Adobe Reader's network drive restrictions by using WPS Office's built-in PDF reader. It smoothly handles multiple PDF tabs, supports direct network drive access, and provides a lightweight, fast viewing experience.

  1. 1. Download and install: Download and install WPS Office from the official website on your computer.
  2. 2. Set as the default reader: Right-click your PDF file on the network drive, select 'Open with', and choose WPS Office. You can check the box to always use this application for PDFs.
  3. 3. Open multiple files concurrently: Double-click your second PDF on the network drive. WPS Office will open it seamlessly in a new tab alongside the first document, bypassing traditional Protected Mode errors.
Easily open multiple PDFs in a tabbed view without freezing or crashing.Fully compatible with standard PDF files and Microsoft Office formats.Lightweight software that manages network drive access efficiently.Includes a free built-in PDF viewer, editor, and annotator.
microsoft office alternative - wps office

Frequently Asked Questions

Why does Protected Mode block PDFs on a network drive?

Protected Mode restricts what a PDF file can do to protect your computer from malicious scripts. Sometimes, it misinterprets the behavior of accessing multiple files across a network drive as a potential security threat, actively blocking subsequent files from opening.

Should I permanently disable Protected Mode in Adobe Reader?

No, permanently disabling Protected Mode is not recommended as it significantly reduces your system's security. It should only be disabled temporarily for troubleshooting purposes.

How do I know if the issue is a Group Policy restriction?

If you copy the PDF files to your local hard drive and they open concurrently without any issues, but fail when accessed directly from the network drive, the problem is highly likely related to a network Group Policy or permission set by your IT administrator.

Can I use alternative software to open PDFs on a network drive?

Yes, you can use alternative office suites like WPS Office, or even web browsers like Chrome or Edge, to open multiple PDFs directly from a network drive without running into Adobe's specific security restrictions.