Fix Acrobat Word to PDF Conversion Security Level High Error
Question details
The user is unable to convert a Word document to PDF using the Acrobat right-click context menu due to a security level error.

- Product
- Adobe Acrobat Pro DC / Microsoft Word
- Device & OS
- Windows
- Scenario
- Converting Word documents to PDF directly from the Windows File Explorer right-click menu.
- Observed behavior
- The background conversion fails and triggers a "Security level set to High" error prompt, even though converting manually from within the Word application works normally.
Before proceeding with reinstallation, ensure you have saved all open Word documents and closed any running instances of Adobe Acrobat to prevent file conflicts during the troubleshooting process.
Perform a Clean Reinstallation of Adobe Acrobat
Using the Acrobat Cleaner Tool completely removes corrupted registry entries and permissions that cause background security conflicts during PDF conversion.
Standard uninstallations often leave behind configuration files and registry keys. The official Acrobat Cleaner tool ensures that any conflicting security policies or damaged add-in files are entirely wiped from your system before reinstalling.
Visit the official Adobe website and download the Acrobat Cleaner Tool for Windows.
Execute the downloaded file and follow the on-screen prompts to completely remove Adobe Acrobat Pro DC from your computer.
Reboot your Windows PC to ensure all background services and registry locks are cleared.
Download the latest version of Acrobat Pro DC from your Adobe account and install it.

Test with a New Windows Administrator Profile
Creating a fresh user profile helps bypass corrupted user-specific security settings or strict macro policies blocking the background conversion.
Convert Word to PDF Effortlessly with WPS Office
Avoid frustrating add-in errors and security warnings by using WPS Office. It provides native, built-in PDF conversion that works seamlessly without requiring complex third-party integrations, offering a fast, free, and highly compatible alternative to Microsoft Office.
- 1. Open your Document: Launch WPS Office and open your Word document.
- 2. Access the Export Feature: Click on 'Menu' in the top-left corner and select 'Export to PDF'.
- 3. Save the PDF: Choose your desired save location and click the 'Export' button.

Frequently Asked Questions
Why does the right-click to PDF conversion fail but converting from within Word works?
The right-click context menu relies on a background COM add-in process to automate Microsoft Word. If Windows or Word's macro security settings restrict background script executions, it throws a security level warning. Converting within Word is a direct user-initiated action and bypasses these automated security checks.
How do I check my macro security settings in Microsoft Word?
Open Microsoft Word, go to File > Options > Trust Center. Click on 'Trust Center Settings' and then navigate to 'Macro Settings'. Ensure that macros are not entirely blocked, though you should keep them on a secure setting (like 'Disable all macros with notification') to prevent actual security threats.
What is the Acrobat Cleaner Tool and is it safe to use?
The Acrobat Cleaner Tool is an official, safe utility provided by Adobe. It is designed to cleanly remove leftover registry keys, background service entries, and corrupted installation files that the standard Windows 'Add/Remove Programs' uninstaller might leave behind.
Can I convert Word documents to PDF without Adobe Acrobat?
Yes. You can use the built-in 'Save As' or 'Export' features available in most modern word processors. Alternatively, lightweight office suites like WPS Office feature integrated PDF tools that allow you to export documents to PDF seamlessly without extra plugins.




