The Android operating system allows users to select the application that opens Portable Document Format (PDF) files. This selection determines which program will handle PDF viewing and editing tasks when a user interacts with a PDF file. For example, if multiple applications capable of opening PDFs are installed, the system prompts the user to choose one upon initial file access. The user can then set this choice as the permanent, or default, handler for PDF files.
Configuring the preferred application for PDF files provides several advantages. It streamlines workflow by removing the need to repeatedly select an application. It also ensures a consistent user experience, as the user interface and features of the chosen application are always accessible. Historically, managing file associations has been a core feature of desktop operating systems, and Android extends this functionality to its mobile environment, offering greater control to the user.