he duties of a document controller are:Registering of internal and external documents. Maintenance of controlled documents register. Sending of Drawing Transmittals and Submittals. Ensuring that drawing transmittals are acknowledged in case there is a dispute on whether the drawings were transmitted. Manage the document/drawing review process, Internal and External. Expedite the responses to document/drawing issues using QDMS Alerts. Archiving data for historical purposes.