1. Add a two-page display mode

Two-page mode allows you to take notes more like a real book

1. Split the screen in one program instead of two separate programs

Sharing a toolbar is more convenient

1. Page turning animation is not very smooth, always need to move a large range of hand to turn the page, I hope to optimize the movement, one hand slightly stroke can turn the page

2. Draw in straight line in highlighters are easy to use, and I'd like to add a same function to the fountain pen.so, Take notes more smoothly