How to Fix “Failed to Open PDFSigner: this.pkipdf.open is not a function” in IREPS

Quick Answer

The IREPS error “Failed to open PDFSigner: this.pkipdf.open is not a function” indicates that the Indian Railways E-Procurement System (IREPS) attempted to open its PDFSigner component but could not find the expected JavaScript open() function. Possible causes include an incorrectly initialized PDFSigner component, incompatible software versions, failed browser communication, or an issue with the IREPS webpage.

If the error occurs in both Google Chrome and Microsoft Edge, first check the installed IREPS Signer and CRIS Signer versions, local signer services, browser permissions and JavaScript console errors. Having emSigner running does not necessarily mean that the separate IREPS PDF-opening component is working. Do not uninstall Java, emSigner or DSC drivers without identifying the actual problem.

1. Understanding the IREPS PDFSigner Error

The error contains two important parts:

• Failed to open PDFSigner: The IREPS webpage could not successfully initialize or open the PDFSigner component.
• this.pkipdf.open is not a function: The webpage attempted to execute an open() method on an object named pkipdf, but that method was unavailable.

This is a JavaScript runtime error. It identifies where the operation failed but does not establish the underlying cause. The problem may involve a missing component, an incomplete initialization, incompatible interface versions or a failure in the portal's PDF-opening code.

It is important to distinguish between the following components:

Component	Purpose
IREPS PDFSigner	PDF-related signing or document integration used by the portal.
CRIS Signer	Signing software used in certain Indian Railways portal workflows.
emSigner	Digital-signature communication software used by supported applications.
DSC token middleware	Software that allows Windows and supported applications to communicate with a USB digital-signature token.
Java	Runtime environment required by certain legacy or Java-based signing components.

These components may have different responsibilities. Their installation or running status should be checked separately.

2. Common Causes

The following are possible causes, not confirmed explanations for every occurrence of this error.

• PDFSigner initialization failure: The webpage loads an object that does not expose the expected open() method.
• Component version mismatch: The IREPS webpage and installed signing software may not be using compatible interfaces.
• Local signer communication failure: A required local application or service may not be responding.
• Browser permission issue: The browser may not have granted a permission required by the IREPS signing workflow.
• Cached website scripts: Previously stored browser data may interfere with updated portal components.
• Portal-side problem: The IREPS document-opening script or associated service may be experiencing an issue.
• Document-specific problem: A particular bid document or its opening workflow may be affected even when other PDFs work.

3. Basic Checks Before Troubleshooting

Before changing the computer configuration, collect the following information:

• Windows version and system architecture.
• Google Chrome and Microsoft Edge versions.
• Installed IREPS Signer and CRIS Signer versions.
• Whether emSigner is running.
• Installed Java version, if Java is required by the signer installation.
• Whether the error occurs with all IREPS PDFs or only bid documents.

Do not assume that the latest Java release is automatically the correct version for an older signer integration. Check the current IREPS installation instructions first.

4. Recommended Troubleshooting Procedures

4.1 Check the Official IREPS Signer Version

Start by checking the signer software provided by IREPS.

1. Visit the official IREPS website.
2. Look for the Other Useful Links section.
3. Locate the IREPS Signer download and troubleshooting links.
4. Compare the published version with the version installed on your computer.
5. Follow the official installation instructions if an update is required.

The IREPS homepage has listed IREPS Signer Version 1.5.2. Check the live portal for the current release before installing anything, because the available version can change.

If the installed version is already current, do not repeatedly reinstall it without collecting additional diagnostic evidence.

4.2 Check Browser Permissions

IREPS documents a browser permission required during certain DSC attachment operations. Chrome or Edge may display a request similar to:

Access other apps and services on this device

1. Open the official IREPS website.
2. Log in using your normal credentials.
3. Start the DSC attachment operation, if applicable.
4. If the browser displays the permission request, select Allow.
5. Retry the relevant operation.

If the permission request does not appear, clear the browser cache, close all browser windows and reopen the portal.

This permission is relevant to the DSC workflow. It is not a guaranteed fix for the specific pkipdf.open error.

4.3 Restart CRIS Signer and emSigner

Restarting the signing applications can help eliminate stale application sessions.

1. Save any ongoing work.
2. Close all Chrome and Edge windows.
3. Exit CRIS Signer from the system tray.
4. Exit emSigner from its system-tray menu.
5. Start CRIS Signer using the administrator procedure specified by its installation instructions.
6. Start emSigner if the IREPS workflow requires it.
7. Wait for the applications to initialize.
8. Reopen the browser and retry the PDF.

Do not run unnecessary duplicate instances of the signer applications. Do not assume that CRIS Signer and emSigner are interchangeable.

4.4 Check the Local CRIS Signer Service

Some CRIS signer configurations use a local service on the computer. Older CRIS troubleshooting instructions refer to the address http://127.0.0.1:2039.

The address uses the loopback IP address, meaning that communication is directed to the same computer.

Open PowerShell and execute the following read-only command:

Get-NetTCPConnection -State Listen -ErrorAction SilentlyContinue |
Where-Object {$_.LocalPort -eq 2039} |
Select-Object LocalAddress, LocalPort, OwningProcess

This checks whether Windows reports a listening TCP connection on port 2039.

To test the connection, run:

Test-NetConnection 127.0.0.1 -Port 2039

Interpret the result:

Result	Meaning
TcpTestSucceeded: True	A TCP connection to port 2039 succeeded.
TcpTestSucceeded: False	A connection to that port could not be established.

A successful connection does not prove that the PDFSigner JavaScript interface is functioning. A failed connection also does not prove that the signer is defective, because different software releases may use different local communication mechanisms.

Do not change firewall rules or open additional ports based only on this test.

4.5 Check the Java Installation

Some older CRIS signer integrations use Java. First identify the installed version rather than immediately installing or downgrading Java.

Open Command Prompt and execute:

java -version

To find the Java executable selected through the system PATH, execute:

where java

These commands display version and executable-location information. They do not modify the system.

If multiple Java installations are displayed, identify which version the installed signer actually uses before changing any configuration.

Follow the Java requirements of the current IREPS signer release. Do not install an outdated Java version merely because an older troubleshooting guide mentions it.

4.6 Check the Legacy Java Exception Site Configuration

Older CRIS signer troubleshooting documentation describes adding the local address http://127.0.0.1:2039 to the Java Exception Site List.

This procedure is relevant only when the installed Java-based signer integration requires it.

1. Search Windows for Configure Java.
2. Open the Java Control Panel.
3. Select the Security tab.
4. Open Edit Site List.
5. Check the official instructions for your installed signer version.
6. If required, add the exact local address specified by those instructions.
7. Apply the change and restart the relevant application.

This is a legacy configuration procedure, not a confirmed solution for the JavaScript error. Do not lower Java security settings globally or add unrelated websites.

4.7 Clear Browser Cache and Site Data

Old cached scripts or website data may interfere with the loading of updated portal components.

1. Open Chrome or Edge.
2. Press Ctrl + Shift + Delete.
3. Select cached images and files.
4. Clear IREPS site data or cookies if necessary, understanding that you may be signed out.
5. Close all browser windows.
6. Reopen the browser.
7. Log in to IREPS and retry the PDF.

There is no need to delete saved passwords for this procedure.

5. Advanced Diagnostics Using Developer Tools

If the error continues in both Chrome and Edge, inspect the browser's JavaScript console. This can reveal whether the PDFSigner object is missing, incorrectly initialized or failing to load.

5.1 Inspect the Console

1. Open IREPS in Chrome.
2. Press F12.
3. Select the Console tab.
4. Clear the existing messages.
5. Click the bid document that causes the error.
6. Look for new red error messages.
7. Record the complete message, JavaScript filename and line number, if available.

The exact console output is more useful than the popup message alone. For example, a failed script request and a missing JavaScript method point towards different areas of investigation.

5.2 Inspect Network Requests

1. Open Developer Tools and select Network.
2. Enable Preserve log if available.
3. Retry opening the affected bid PDF.
4. Look for failed JavaScript or PDF-related requests.
5. Record the request filename and HTTP status code.

Do not share session cookies, authentication headers, access tokens, passwords, private keys or confidential tender documents when sharing diagnostic logs.

6. Determine Whether the Problem Is Local or Portal-Side

Use the following checks to narrow down the source of the problem.

Observation	Possible investigation area
Only one computer has the error	Local signer installation, browser configuration or system environment.
The same document fails on multiple computers	Document-specific handling or IREPS portal integration.
Other IREPS PDFs open successfully	Specific bid-document workflow or document issue.
Every IREPS PDF fails	Common PDF-opening component or portal integration.
PDF opens but digital signing fails	DSC token, certificate, signer communication or permissions.
JavaScript file fails to load	Portal script, network request or browser cache.
PDFSigner object exists but has no open method	Component initialization or interface compatibility.

These observations help prioritize investigation but do not independently establish the root cause.

7. When to Contact IREPS Support

If the official signer version, browser permissions and local configuration have been checked but the error continues, report the issue to IREPS support.

The official IREPS mobile application listing has published the following support details:

• Email: helpdesk.eps@cris.org.in
• Telephone: +91 11 2410 4525

Verify the current support details on the official IREPS portal before contacting them.

Include the following information in the support request:

• Exact error message.
• Windows version and architecture.
• Chrome and Edge versions.
• Installed IREPS Signer and CRIS Signer versions.
• emSigner status.
• Java version, if applicable.
• Whether other IREPS PDFs open successfully.
• Relevant JavaScript console errors and failed Network requests.
• Date and time of the failure.

Never send your DSC PIN, private key, passwords or browser authentication tokens to support personnel.

8. What Not to Do

• Do not uninstall Java immediately: Establish the signer's actual Java requirements first.
• Do not downgrade Java blindly: Old instructions may not apply to the current signer release.
• Do not reinstall all signing applications together: Identify which component is failing first.
• Do not disable antivirus or firewall protection globally: Investigate specific blocked components instead.
• Do not download unofficial signer installers: Use the official IREPS website.
• Do not share DSC credentials: Keep your digital-signature PIN and private key confidential.
• Do not experiment during a critical tender submission: Avoid unnecessary system changes close to a submission deadline.

Frequently Asked Questions

Does this error mean my DSC certificate has expired?

No. The error does not establish that the DSC certificate has expired. It indicates a problem with the PDFSigner JavaScript interface. Check certificate validity separately if a certificate-related error is displayed.

Can emSigner be running while IREPS PDFSigner fails?

Yes. emSigner can be running even when the IREPS PDF-opening component is unavailable or incorrectly initialized. Different components may be responsible for opening documents, communicating with the token and applying digital signatures.

Why does the same error occur in Chrome and Edge?

Both browsers may be loading the same failing IREPS webpage component or communicating with the same local signer installation. This makes a browser-specific issue less likely, although it does not completely rule out browser compatibility or permission problems.

Should I install an older version of Java?

No, not without checking the requirements of the currently installed IREPS signer. Older CRIS troubleshooting documents refer to Java 8 or later, but the correct version depends on the actual signing component and its release.

Does a successful port 2039 test guarantee that PDFSigner will work?

No. It confirms only that a TCP connection to that port was successful. It does not verify that the required PDFSigner JavaScript object or its open() method is available.

What information is most useful for diagnosing this error?

The installed IREPS Signer version, exact browser console error, JavaScript filename and line number, failed Network requests, and results from testing other IREPS PDFs are particularly useful.

Sources

• Indian Railways E-Procurement System – Official Portal, Signer Download and Troubleshooting Links
• Indian Railways – Steps to Resolve CRIS Signer Error on Application (Java Configuration)
• Indian Railways – User Manual for Registration of New Vendors and Contractors
• IREPS Official Mobile Application – Centre for Railway Information Systems