Abstract: Described herein is a system for providing access to a virtual assistant using a hidden element in source code of a document. The system can receive a request from a computing device to access a document, which has source code that includes a first set of characters embedded at its beginning. The first set of characters may only be accessible by an accessibility engine design to render data describing a document for individuals with visual impairments. When the accessibility engine parses the first set of characters, the computing device outputs content indicating that the individual can access the virtual assistant by performing an interaction. When the computing device detects the interaction, the computing device invokes the virtual assistant to guide the individual through the document.