What's covered
Find solutions to activation errors that can occur when launching Adobe apps.
On this page

    When you launch an Adobe app, you get an error stating that sign-in failed, there is an activation limit, or the maximum number of activations has been exceeded.

    Sign in failed

    These errors occur if you try to use the application on too many computers. To resolve the error, try the solutions on this page.

    Adobe Creative Cloud (CC) apps

    An Adobe Creative Cloud membership lets you use your applications on two computers. To use your applications on a third computer, you'll need to sign out of the application on one of the first two computers. Signing out deactivates all installed Creative Cloud applications and services associated with your Adobe ID on that computer.

    Launch the app, choose Help > Sign Out, and enter your Adobe ID and password.

    For detailed instructions, see Sign in and sign out to activate Creative Cloud apps.

    Acrobat DC

    You can use your Acrobat Pro DC or Acrobat Standard DC subscription on two computers. To use Acrobat on a third computer, simply sign out of Acrobat on one of the first two computers.

    For detailed instructions, see Activate and deactivate products.

    Creative Suite 6 and earlier

    A single license for Adobe CS6 and earlier applications lets you install an app on two computers. However, you can use the application on only one computer at a time.

    To install the application on a third computer, deactivate the application on the computer on which you no longer want to use the software. Then, activate it on the new computer.

    Uninstalling the application from a computer does not deactivate its license. To deactivate the app, you'll need to reinstall the application, and then do one of the following:

    Adobe Creative Cloud, Acrobat Pro DC, or Acrobat Standard DC

    1. Reinstall the app, and sign in when prompted.

    2. Launch the app, choose Help > Sign Out, and enter your Adobe ID and password.

    CS6, CS5, CS4, Acrobat XI, Acrobat X, or Acrobat 9

    1. Connect to the Internet.

    2. In the application, choose Help > Deactivate.


    CS3, Acrobat 8, or earlier products

    1. Connect to the Internet.

    2. Choose Help > Deactivate or Help > Transfer Activation.

    3. If you want to activate on another computer, select Erase My Serial Number From This Computer.

    4. When you see the Deactivation Successful message, click Exit.

    If you don’t have access to the previous computer on which you installed the application, please Contact us. Be sure to have any purchase-related information ready.


    Did you upgrade your computer's hardware, replace a hard drive, upgrade your operating system, or format your computer before deactivating your software? Contact us. Be sure to have any purchase-related information ready.

    Back to top