Hello
Thank you for posting in Q&A forum.
Here are some steps you can try to resolve this:
- Ensure your PDF reader (e.g., Adobe Acrobat Reader) is up to date. Sometimes, updates include fixes for compatibility issues with new operating systems.
- Verify that you have the necessary permissions to open the protected PDF. Some PDFs require specific permissions or passwords to access.
- If you're using a specific PDF reader, try opening the file with a different one, such as Microsoft Edge or another PDF reader.
- If you're using Adobe Acrobat Reader, you can try repairing the installation:
• Open Adobe Acrobat Reader. • Go to Help > Repair Installation.
- In Adobe Acrobat Reader, you can try disabling Protected Mode:
• Go to Edit > Preferences > Security (Enhanced). • Uncheck "Enable Protected Mode at startup". 6. Uninstall and then reinstall your PDF reader to ensure a clean installation.
I hope the information above is helpful.
If you have any questions or concerns, please feel free to let us know.
Best Regards,
Daisy Zhou
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