PDF document not opening – Chrome Browser

If you encounter a runtime error when clicking the PDF icon to open a document, please try the following troubleshooting steps.

🧹 1. Clear Browser Cache and Cookies #

Corrupted cache or cookies can cause Chrome’s built-in PDF viewer to malfunction.

Steps:

1. Open Chrome.
2. Click the three dots ⋮ → Settings → Privacy and security.
3. Click Clear browsing data.
4. Select Cached images and files and Cookies and other site data.
5. Click Clear data.
6. Restart Chrome and try opening the PDF again.

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🔄 2. Disable Extensions #

Some extensions (especially PDF-related ones, like Adobe Acrobat or download managers) can interfere with Chrome’s PDF viewer.

Steps:

1. Go to chrome://extensions/ in the address bar.
2. Toggle off all extensions (or at least those related to PDFs, downloads, or security).
3. Restart Chrome.
4. Try opening the PDF again.

If that fixes the problem, re-enable extensions one at a time to find the culprit.

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🧰 3. Update Google Chrome #

Outdated Chrome versions can cause compatibility issues with the PDF viewer.

Steps:

1. Click ⋮ → Help → About Google Chrome.
2. Chrome will automatically check for updates.
3. Click Relaunch if an update is installed.

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⚙️ 4. Change Chrome’s PDF Settings #

You might have a misconfiguration in Chrome’s PDF settings.

Steps:

1. Go to chrome://settings/content/pdfDocuments.
2. Make sure “Download PDFs instead of automatically opening them in Chrome” is off (if you want to view in Chrome).
3. Try opening the PDF again.

Alternatively, turn this on to download the PDF and open it with another viewer like Adobe Acrobat if Chrome’s viewer is the issue.

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🧩 5. Reinstall or Repair Adobe Acrobat (if installed) #

If you use the Adobe Acrobat Chrome extension, it might be the cause of the runtime error.

Steps:

1. Uninstall Adobe Acrobat Reader from your computer.
2. Restart your PC.
3. Download and reinstall the latest version from Adobe’s official site.
4. Try opening the PDF again.

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🧼 6. Reset Chrome Settings #

If none of the above helps, a full reset can fix deep configuration or extension issues.

Steps:

1. Go to chrome://settings/reset.
2. Select Restore settings to their original defaults.
3. Confirm with Reset settings.
4. Restart Chrome and test again.

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🖥️ 7. Try a Different User Profile or Incognito Mode #

Sometimes user profile corruption causes runtime errors.

• Try opening the PDF in Incognito Mode (Ctrl + Shift + N).
• Or create a new Chrome profile via chrome://settings/people.

If it works there, your main profile has a corrupted setting or extension.

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💡 8. Open the PDF Outside of Chrome #

If you still can’t open the file:

• Right-click the PDF link → Save link as…
• Then open it directly in Adobe Acrobat or another PDF reader.

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🧱 9. Check for Malware or System Issues #

Malware or registry corruption can cause runtime errors.

• Run a full scan with Windows Security or another trusted antivirus.
• Make sure Windows is fully updated.
• If the runtime error message mentions a specific DLL or application, note it—it could point to a system issue.