The following describes how to stop ribbon toolbar from auto hiding in different versions of Foxit PhantomPDF.
For version 8.x to V10.x. please do one of the following ways to show or hide the ribbon toolbar.
The first method: Click on one of the tabs in Foxit application.In the following figure, I Choose HOME tab.Click the pushpin icon 
located on the lower-right corner of the ribbon.
The second method: Right-click toolbar and uncheck the Minimize the Ribbon option to have the ribbon displayed.
The third method: On the Foxit screen, press down Ctrl + F11 shortcut keys to show or hide the ribbon bar.
For versions prior to V81, please do one of the following ways to show or hide the ribbon toolbar.
The first method: On the up-right corner of Foxit screen, under Close ×, there is an arrow called Change Ribbon Status click on this icon will show or hide the ribbon bar.
The second method: On the Foxit screen, press down Ctrl + F11 shortcut keys to show or hide the ribbon bar.
