As indicated in the following earlier feedback, you've already implemented the option to permanently crop documents:

http://feedback.xodo.com/forums/241992-suggest-a-new-feature/suggestions/12949461-permanent-crop

However, that option creates a duplicate of my document, cluttering my storage with copies, requiring me to navigate to wherever I save the file in order to delete the duplicate. Please could you give us a toggle in settings to save as permanently cropped by default whenever we crop a file? Instead of requiring us to save a copy.

Thanks in advance