Sign in at https://account.adobe.com/plans.

Select Edit billing and payment for your plan.

In the Manage payment method window that opens, select Add new.

Select your payment method—credit card or PayPal—and then do one of the following:

• PayPal to credit card: If you are switching from PayPal to a credit card, enter your credit card details.
• Credit card to PayPal: If you are switching from a credit card to PayPal, select Sign in, and follow the instructions on the PayPal website. Once done, you are directed back to your Adobe account. 

To save your changes, select Save. 

Note: If the same credit card is linked to multiple subscriptions, all subscriptions are updated when you change credit card information for any one of them.