How to Fix Acrobat Errors When Opening PDFs Secured by a Remote Server
Question details
The user cannot open a secured PDF because Acrobat displays an error stating the computer must be connected to the network due to expired offline permissions.
- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Attempting to open a DRM-protected PDF document that relies on a remote Adobe Experience Manager Forms or Document Security server for authentication.
- Observed behavior
- Adobe Acrobat blocks access to the document and shows an error message: 'This computer must be connected to the network in order to open this document. Connect this computer to the network and then try opening the document again.'
Verify that your computer has an active internet connection and temporarily disable any recently installed firewalls or VPNs that might block Acrobat from reaching external authentication servers.
Verify Network Connectivity and Authentication Server Access
Ensure your local network settings allow Adobe Acrobat to communicate with your organization's Document Security or Adobe Experience Manager Forms server.
Secured PDFs often require periodic 'check-ins' with a remote server to validate your viewing credentials. If your offline permission time limit expires, the PDF will lock itself until it can reconnect to the server.
Open your system's firewall or antivirus software. Look for blocked application logs to ensure Adobe Acrobat is permitted to send outgoing network requests.
If the PDF was issued by your employer or an external organization, you may need to connect to their specific corporate VPN or intranet so Acrobat can reach the internal licensing server.
Contact the IT department of the organization that issued the PDF to confirm that their Document Security server is currently online and that your user account privileges have not been revoked.
Request a Reissued PDF from the Document Owner
If the PDF is several years old, the original security infrastructure may have been retired, making it impossible to authenticate the document.
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Frequently Asked Questions
Why does a PDF say my offline permissions have expired?
Certain highly secured PDFs use remote DRM (Digital Rights Management) servers. The document requires a network connection to periodically verify your access rights. If the time limit passes without a successful server check-in, offline access is automatically revoked.
Can I bypass the remote server network requirement to open the PDF?
No. Standard security protocols are designed to prevent bypassing this requirement. You must either successfully connect to the original licensing server or have the document's author provide a new, unprotected version of the file.
What happens if the security server for an old PDF is permanently shut down?
If the network infrastructure supporting the PDF's security features has been retired, the document is permanently locked. Your only recourse is to contact the original author or organization to issue a new copy of the document without the obsolete security policy.
Will disabling my computer's firewall fix the offline permission expired error?
If your firewall is actively blocking Acrobat from reaching the internet, temporarily disabling it or adding Acrobat to the firewall's 'allowed apps' list can restore connectivity and allow the PDF to authenticate.
