React-pdf is a library of components designed to integrate document viewing and interaction into web applications. It provides a standardized interface for parsing and displaying portable document format files directly within a browser environment, supporting input from local files, remote web addresses, and encoded data strings.
The library renders document content onto HTML5 canvas elements to ensure consistent visual display across browsers. To maintain interface responsiveness during document processing, it offloads parsing tasks to background threads. It also implements a layered approach that positions transparent elements over the canvas, enabling native text selection, interaction with embedded annotations, and support for screen readers to interpret document content.