Why do it by hand if you can code it in just quadruple the time? I wrote a program to clean up scans of handwritten notes while simultaneously reducing file size. Example input and output: Left: input scan @ 300 DPI, 7.2MB PNG / 790KB JPG. Right: output @ same resolution, 121KB PNG.1 Disclaimer: the process described here is more or less what the Office Lens app does already, and there’s probably
![Compressing and enhancing hand-written notes](https://cdn-ak-scissors.b.st-hatena.com/image/square/6b37fcfdd57a68cc2c1406760127848736868e18/height=288;version=1;width=512/https%3A%2F%2Fmzucker.github.io%2Fimages%2Fnoteshrink%2Fnoteshrink-comparison.png)