Why the 'All Versions of Acrobat' Compatibility Option Is Missing in PDFs
Question details
The user wants to know why the 'All versions of Acrobat' option does not appear or cannot be selected in the PDF security and compatibility settings.

- Product
- Device & OS
- not provided
- Scenario
- Attempting to configure PDF security settings or save a PDF document for broad backward compatibility.
- Observed behavior
- The 'All versions of Acrobat' option is missing from the compatibility dropdown menus when trying to apply document restrictions.
Before adjusting compatibility options, determine if your PDF truly requires password protection, as enabling encryption automatically restricts backward compatibility with older PDF viewers.
Remove Security to Enable 'All Versions' Compatibility
Understand that 'All versions' is an informational state, not a selectable security option, and learn how to achieve it by removing encryption.
The phrase 'All versions of Acrobat' is an informational message rather than a selectable dropdown option. When a PDF document has no security restrictions applied, the software displays this message to indicate that the file can be opened by any PDF viewer.
As soon as you apply a password or restrict editing, the software uses modern encryption methods. Because older versions of PDF readers do not support modern encryption, you are forced to choose a minimum compatible version (like Acrobat 7.0 or later). To achieve universal compatibility, you must leave the document unprotected.
Open your PDF document and navigate to the Document Properties or Security settings menu.
Look at the 'Security Method' dropdown. If it is set to 'Password Security' or any other encryption method, the 'All versions' status will not be available.
Change the Security Method to 'No Security'. You may be prompted to enter the current permissions password to authorize this change.
Save your PDF. The document will now display that it is compatible with all versions, as no encryption restricts older software from opening it.

Easily Manage PDF Security and Compatibility with WPS Office
Instead of worrying about complex compatibility settings and confusing dropdowns, use WPS Office to easily add, manage, or remove PDF passwords. WPS PDF ensures your documents remain secure while offering broad compatibility across different devices and platforms.
- 1. Open your PDF: Launch WPS Office and open your PDF file using the WPS PDF tool.
- 2. Navigate to the Protect tab: Click on the 'Protect' tab located on the top ribbon menu to access security features.
- 3. Manage Encryption: Click on 'Encrypt'. Here you can easily check, add, or remove open passwords and editing restrictions.
- 4. Save the file: Uncheck the password options if you want maximum compatibility, or set a secure password, then click 'Confirm' and save your document.

Frequently Asked Questions
Can I password protect a PDF and still open it in very old PDF viewers?
No. When you apply a password, the software uses modern encryption methods (like 128-bit or 256-bit AES) that older versions of PDF readers cannot process. You must choose a newer compatibility level when encrypting.
Why do I only see 'Acrobat 7.0 and later' in the compatibility dropdown?
This dropdown appears when you enable encryption. 'Acrobat 7.0 and later' is often the lowest selectable baseline for modern AES encryption. The 'All versions' status only applies when absolutely no encryption is used.
How do I make my PDF compatible with everyone?
To ensure everyone can open your PDF regardless of the software they use, remove all security passwords and editing restrictions. Go to the security properties, select 'No Security', and save the file.




