I want to cancel my one year subscription.

[wangzeyu]

I buy a one year photoshop student and teacher one. But I do not need it, How could I cancel it?

[pwillener]

See http://helpx.adobe.com/x-productkb/policy-pricing/cancel-subscription-acrobat-online-services.html

[pwillener]

My above link was for an Acrobat.com subscription (since you posted in the Acrobat.com forum).

Now I see that you want to cancel a Photoshop subscription: http://helpx.adobe.com/x-productkb/policy-pricing/cancel-membership-subscription.html