无限草稿本

A draft book with unlimited space for drafting anytime, anywhere
The APP is designed to reduce the use of real scratch paper and protect the forest on the earth. The main function:
1. choose the color and stroke width of paint.
2. scale the paper for draw.
3. undo and clear the stroke.
4. export and import the scratch paper.
6. edit image
More funtions will be added. Welcome to use!