Examples of providing printed confidential documents are described herein. In an example, a printing system includes at least two protected trays to store printed confidential documents. The at least two protected trays may be coupled to each other to enable transfer of the printed confidential documents between the at least two protected trays. Further, an output tray may be coupled to at least one of the at least two protected trays to provide the printed confidential documents for collection. Furthermore, on receiving an authentication input, the printed confidential documents may be transferred from one of the at least two protected trays to the output tray.