How to Keep PDF Comments Editable While Using an Open Password
Question details
The user wants to protect a PDF file with an open password but needs authorized users to be able to edit and add comments, specifically when accessing the file on mobile devices.

- Product
- Device & OS
- mobile devices
- Scenario
- Securing a collaborative PDF document with a password while retaining the ability to modify annotations.
- Observed behavior
- Adding an open password appears to prevent users from editing comments on mobile devices, or users are unable to access the comments without bypassing the password.
Ensure you have the correct open password to unlock the document, and confirm that the PDF was not accidentally flattened, which permanently merges annotations into the page background.
Unlock the PDF and Verify Permission Settings
To edit comments in a secured PDF, users must first enter the open password. You also need to ensure that no additional restriction passwords are blocking comment modifications.
An open password strictly controls who can view the document and cannot be bypassed to edit comments. Once the authorized user inputs the open password, the mobile app should allow editing unless a secondary 'Permission Password' restricts commenting.
Launch your PDF reader or editor on your mobile device and tap the secured PDF file to open it.
When prompted, type in the correct open password to unlock the document.
Navigate to the 'Comment' or 'Annotate' tab. If the tools are active, you can begin editing.
If the tools are grayed out, the document owner may have set a Permission Password restricting edits. Contact the owner to modify the security properties to allow commenting.

Save the Secured PDF Without Flattening
Sometimes, the process of saving a password-protected PDF or transferring it to a mobile device inadvertently flattens the file, making comments uneditable.
Use WPS Office to Secure and Edit PDFs Seamlessly
WPS Office provides professional-grade PDF security and editing tools. You can easily set open passwords to protect your confidential files while keeping all annotations fully editable across both desktop and mobile platforms.
- 1. Open your PDF: Launch WPS Office and open the PDF document you wish to protect.
- 2. Encrypt the Document: Navigate to the 'Protect' tab and click on 'Encrypt' to open the security settings.
- 3. Set Open Password: Check the box to require a password to open the document and enter your chosen password. Ensure you leave the editing permissions open for commenting.
- 4. Save and Share: Save the document. Collaborators can now open it on their mobile devices using WPS Office, enter the password, and edit the comments freely.

Frequently Asked Questions
Can I bypass the open password to edit PDF comments?
No. If a PDF is protected with an open password, it cannot be bypassed. You must enter the correct password to view and interact with any part of the document, including editing comments.
Why are my PDF comments uneditable after adding a password?
This usually happens for two reasons: either a 'Permission Password' was added alongside the open password that explicitly restricts editing and commenting, or the PDF was accidentally 'flattened' during the saving process.
Can I edit comments in a password-protected PDF on my phone?
Yes, as long as you have a capable PDF editor app like WPS Office on your mobile device. Once you unlock the file with the open password, you can edit comments provided the document owner hasn't restricted editing permissions.




