You can delete a document saved as unconfirmed by selecting the [Delete] button. The option is available in the document context menu in the document list:
Or in the top right corner of the document preview:
Selecting the [Delete] option displays the message: “Are you sure you want to delete this document?”. If you tap the option [Confirm], the document will be deleted.
Hint
Only unconfirmed (saved) documents can be deleted. It is not possible to delete documents that have been confirmed and synchronized.