If you are using the Acrobat Pro DC trial service, canceling the service will not affect the documents you have created using the application.
Acrobat does not save the PDFs in the application. The files you created in Acrobat will be saved on the machine or cloud storage. If you keep the PDF on Acrobat Online storage, you will still have access to the Acrobat Online storage account. However, the storage limit will be reduced to 2 GB. So, we suggest downloading files from Acrobat Online storage and saving them locally.