Doubt - move to Trash or delete ...

[joebordes]

In general, any delete action will only affect the record being deleted, no related records are deleted. In most cases the relations are saved and restored when the record is recovered from the recycle bin, but I am aware of some cases where this does not happen correctly (I think in products).

So, no, documents will not be deleted. In theory you could create a Delete Related Records task on the Delete trigger to accomplish this though.