What is the maximum number of computers and devices that I can authorize for use with my Adobe ID? Book Master December 10, 2019 23:05 Updated You can activate up to six computers and six devices. If you reach the limit, contact Adobe’s Customer Service to increase your allowable activations. Related articles On how many devices can I download an ebook? How do I Log In? How do I change my password? Comments 0 comments Article is closed for comments.