How to Limit Who Can Comment on a PDF During Peer Review
Question details
The user needs to share a PDF document for peer review, ensuring that only specific invited users can view and comment on it, while preventing unauthorized access and redistribution.

- Product
- PDF Editors
- Device & OS
- not provided
- Scenario
- Distributing a PDF document to a select group of reviewers and maintaining strict access and commenting controls.
- Observed behavior
- Standard PDFs allow anyone to open, edit, or comment. The goal is to restrict these capabilities exclusively to authorized recipients.
Identify the specific individuals who need access to the PDF and ensure you have their digital certificates, or evaluate if a digital rights management (DRM) service is required for strict redistribution control.
Use Certificate Security to Restrict Access and Commenting
Secure the document using digital certificates so only intended recipients can open it and leave comments.
By applying certificate security, you can encrypt the document for a list of specific recipients. Only those who possess the corresponding digital ID can open the file, preventing unauthorized users from accessing the content.
Open your PDF in an advanced PDF editor (like Adobe Acrobat). Navigate to the Protection or Security tools and select the option to encrypt with a certificate.
Browse and add the digital IDs (certificates) of the reviewers you want to grant access to.
In the permissions settings for those recipients, allow 'Commenting' or 'Filling in form fields' while restricting other editing capabilities, such as modifying text or extracting pages.
Save the secured PDF. When distributed, only the users whose certificates you added will be able to unlock the document and add their review comments.

Implement Digital Rights Management (DRM) for Strict Control
Use a specialized DRM service when you need absolute control over identity authentication, document revocation, and advanced redistribution restrictions.
Use WPS PDF to Manage Commenting Permissions
WPS Office provides a comprehensive suite of PDF editing and protection tools, allowing you to easily encrypt your files, set permission passwords to restrict editing, and collaborate smoothly during peer reviews.
- 1. Open Your PDF Document: Launch WPS Office and open the PDF document you want to share for peer review.
- 2. Access the Protect Tab: Navigate to the 'Protect' tab on the top ribbon menu and select the 'Encrypt' button.
- 3. Set a Permissions Password: Check the option for 'Set password to restrict editing and printing'. Enter a strong, memorable password that you will keep securely.
- 4. Allow Commenting Operations: In the permissions dropdown settings, select the option that allows 'Commenting' or 'Filling in forms' while disabling general document modification.
- 5. Save and Distribute: Click 'Confirm' and save the encrypted PDF. Distribute the file to your reviewers; they will be able to comment without needing the permission password, but cannot modify the core text.

Frequently Asked Questions
Can a standard PDF password prevent users from sharing screenshots?
No, standard PDF password protection or certificate security cannot prevent a user who has unlocked the file from taking screenshots or photos of their screen. For this high level of security, a specialized Digital Rights Management (DRM) solution is required.
What is the difference between a Document Open password and a Permissions password?
A Document Open password is required simply to unlock and view the PDF content. A Permissions password allows anyone to open the document (if no Open password is set) but restricts specific actions like printing, editing, copying text, or adding comments.
How do reviewers add comments once they unlock the PDF?
Once an authorized reviewer opens the document and passes the security check, they can use standard PDF commenting tools (like sticky notes, highlights, and text boxes) found in the 'Comment' or 'Review' tab of their chosen PDF reader, provided commenting permissions were granted.
Can I revoke a reviewer's access to a PDF after the review period?
With standard PDF certificate or password encryption, you cannot remotely revoke access once the file is downloaded by the user. However, if you use an advanced DRM platform, you can remotely revoke access or set an automatic expiration date for the document.




