Handwritten notepad

You can save notes handwritten with your smartphone.
This is useful when you want to write down your thoughts or write a sudden flash of ideas.
You can also change the pen color, transparency and thickness in the settings.
By setting the transparency to 0, you can use the eraser function.
The pen settings can be changed in detail, making it ideal for writing pictures as well as notes.

In Ver1.1, pen setting can be done in another window.
The window can be moved so that it doesn't get in the way of taking notes.
There is no need to display a dialog for each setting, so pen settings can be changed quickly.
The pen setting window was corrected in Ver1.2.
By making the UI a slider, you can now make more detailed settings.

Added the function to export images as JPG in Ver1.3.