Yes, you can cancel your Subscription plan within the first 30 days. After that you will be charged with a cancellation fee, which is 60% of the remaining annual plan. Your software will continue to work until the end of that month's billing period.

You can export pages directly through EDA, in JPG & TIFF in full resolution but in order to export your pages in native PSD files you need to have some version of Photoshop installed on your computer.