Yes, you can delete an uploaded document.
Here's how:
Navigate to the 'Bookkeeping' section in the app.
Make sure you are in the 'Inbox' tab.
Click on the three dots located on the right side of the screen in the document row.
From here you can choose to either Archive or Delete a document permanently.
Note: this action is only possible for unpublished documents.
If you want to delete a document that has already been published, you can do so in Xero or Quickbooks. The corresponding document will remain in the 'Published' section of Apron.