PhotoScape's main window allows you to access the program's functions: image viewer, editor, batch editor, etc. 

PhotoScape's Image viewer allows you to quickly browse through your pictures in a thumbnail view. 

PhotoScape's Editor allows you to edit your images' contrast, color levels, add frames and much more. 

PhotoScape's Batch Editor allows you to perform batch editing procedures on multiple images. 

PhotoScape's Page tab allows you to create a single image out of multiple pictures under different layouts. 

PhotoScape's Options window allows you change the program's file associations and other basic options.