This is the main window of PDF Explorer where you can browse your folders that contain pdf documents. The PDF info panel will display the filename, Title, Subject and Author of each pdf file that has been found 

In the PDF View tab you can see the content of the file and explore the content by using the 'next' and 'previous' arrows at the bottom of the page 

In teh Tools menu you can see a list of additional tools that will help you to manage the document. You can Extract Images and text content, rotate pages, insert or append pages or add watermarks and stamps 

The PDF Explorer Preferences window lets you set General preferences but also options about the Appearance, Internal Reader and Security