Fix the Protected PDF Error When Sharing for Review in Acrobat
Question details
The user receives an error stating that protected files cannot be sent for shared review, despite the PDF properties showing 'No Security'.

- Product
- Adobe Acrobat / Microsoft Word
- Device & OS
- not provided
- Scenario
- Attempting to send a PDF document for a shared review workflow.
- Observed behavior
- Acrobat blocks the review process with a 'protected files cannot be sent for review' error, even though the file's security settings indicate no active security measures.
Verify your current document security settings by opening the PDF in Acrobat and navigating to File > Properties > Security to ensure the Security Method reads 'No Security' before proceeding.
Remove Security from the Original Microsoft Word Template
Since hidden protection or form controls in Word templates can trigger the Acrobat error, modifying the source document is the most effective fix.
Often, the Acrobat conversion plug-in misinterprets elements like template-level protection, form controls, or macro permissions in the original Microsoft Word document as PDF security.
Launch Microsoft Word and open the original source document or template used to create the PDF.
Navigate to the 'Review' tab on the ribbon and click 'Restrict Editing'. If protection is active, click 'Stop Protection' at the bottom of the pane.
Ensure there are no restricted legacy form controls or embedded permissions that the Acrobat plug-in might misinterpret.
Save the cleaned Word document. Use the Acrobat tab in Word to 'Create PDF' from this clean version.
Open the newly created PDF in Acrobat, go to File > Properties > Security to confirm it is unsecured, and retry the shared review workflow.

Update Acrobat and Word Plug-ins
Outdated plug-ins can misinterpret document elements, causing false protection errors during the PDF conversion process.
Use WPS PDF to Share Documents for Collaborative Review
Bypass Acrobat's hidden security errors by using WPS Office. WPS PDF allows you to easily create, annotate, and share PDF documents for team review without complex plugin conflicts or false protection flags.
- 1. Open your document: Launch WPS Office and open your source Word document or existing PDF.
- 2. Export to PDF: If using a Word document, click 'Menu' and select 'Export to PDF' to create a clean, unrestricted PDF file.
- 3. Add annotations: Open the new PDF in WPS PDF and navigate to the 'Comment' tab to add any necessary annotations or highlights.
- 4. Generate a sharing link: Click the 'Share' button in the top right corner to generate a secure sharing link for your team to review.
- 5. Collaborate easily: Send the link to your collaborators. They can open it to view the document and leave comments directly without encountering false security blocks.

Frequently Asked Questions
Why does Acrobat say my PDF is protected when properties show 'No Security'?
This typically occurs when the PDF is generated from a Microsoft Word template that contains hidden formatting restrictions, legacy form controls, or macro permissions. The PDF conversion plug-in inaccurately flags these background elements as active PDF security.
How can I double-check if my PDF has genuine security settings applied?
Open your PDF file in your PDF reader, navigate to the 'File' menu, select 'Properties', and click on the 'Security' tab. The 'Security Method' dropdown will clearly state whether 'No Security' or a specific password security is applied.
What should I do if updating the plug-ins doesn't fix the review error?
If updating doesn't work, bypass the problematic template entirely. Copy the text and elements from your original Word document, paste them into a completely blank, new Word document, save it, and convert it to PDF to initiate the review.




