Expand view area

The main window of PDF Reader for Windows 10 consists of menu bar, tool bar, PDF view area, status bar. You can remove the bar you don't like to expand your view area.

The menu item Options->Menu Bar, Options->Tool Bar, Options->Status Bar are all checkable options. You can enable or disable any bar.

If you want even larger view area, maximize your main window in Options->Maximize on startup. Make it checked/enabled so that next time you launch PDF Reader for Windows 10, the software maximizes its main window automatically.

Note: If you disable Menu Bar, the next time you start PDF Reader for Windows 10, and the menu bar remains on the UI. This is by design.