# in pdfjsbridgs.cpp

1. set ShowScrollBars false
2. (need help!) Allow cross-domain access

# in viewer.js

1. set DEFAULT_SCALE = 'page-fit'
2. set removePageBorders = true;

# in viewer.js

1. hide toolbar and viewerContextMenu
2. Reduce the top gap(modify viewerContainer:top: 0px) 

