How to Deauthorize or Deactivate Adobe Acrobat 9 Pro
Question details
The user needs to deauthorize or deactivate an installation of Adobe Acrobat 9 Pro to free up a license or sign out from a specific computer.

- Product
- Adobe Acrobat 9 Pro
- Device & OS
- not provided
- Scenario
- Transferring the software to a new computer or retiring an old device that is currently authorized.
- Observed behavior
- The user wants to successfully sign out and deactivate the software authorization on the current machine to ensure the license is available.
Ensure your computer is connected to the internet before attempting to deactivate Adobe Acrobat 9 Pro, as the software needs to communicate with Adobe's activation servers to release your license.
Deactivate Adobe Acrobat 9 Pro from the Application
Use the built-in Help menu to deactivate your license directly within the Acrobat application on the authorized computer.
If you still have access to the computer where Adobe Acrobat 9 Pro is installed, you can quickly deactivate the software through the application's top menu. This will instantly communicate with Adobe's servers and free up your license.
Launch Adobe Acrobat 9 Pro on the computer you wish to deactivate.
Go to the top menu bar and click on the 'Help' tab.
Click on 'Deactivate' or 'Sign Out' from the drop-down menu.
Follow the on-screen prompts to complete the deactivation and successfully sign out of your Adobe account.

Contact Adobe Support for Unavailable Computers
If the computer where Acrobat 9 Pro is installed is broken, lost, or otherwise unavailable, you must contact Adobe Support to reset your activations.
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Frequently Asked Questions
Can I deactivate Adobe Acrobat 9 Pro if the computer is broken?
Yes, but you cannot do it directly. You must contact Adobe Customer Support and request an activation reset for your serial number, explaining that the authorized machine is no longer accessible.
Does uninstalling Adobe Acrobat automatically deactivate it?
No, simply uninstalling the software from your control panel does not release the activation license on Adobe's servers. You must explicitly select 'Deactivate' from the Help menu before uninstalling.
How many computers can I activate Adobe Acrobat 9 Pro on?
A standard single-user license allows you to install and activate Acrobat on two computers (for example, a desktop and a laptop), provided you do not use the software on both simultaneously.
What happens if I don't deactivate before formatting my hard drive?
If you format your drive without deactivating, the activation record will remain on Adobe's servers, counting against your license limit. You will need to contact Adobe Support to have your activation count reset manually.




