Originally Posted by kevingart
So how do i get it to occupy full screen?
One thing you could look at is the Calibre settings you used when converting html (zip) to epub. In particular try setting Convert - Page Setup - Output profile
Most (all???) the other output profiles scale down images to fit the screen-size of the device specified in the selected 'Output profile'. I think
'Tablet' leaves the image size as-is.