Welcome to TVPaint Community forums !

Since I heard that you can bring hand drawings from paper to TVPaint. I was wondering, can you make short or long length animations with hand drawings?

You can indeed import your scanned drawings into TVPaint.
You can import long or short length animations depending on the resolution of the images, the capacities of your computer, and the version of the software.

It is indeed better to work with the 64 bits version of TVPaint which allows you to work in high resolutions.

Check out these videos to have a look at the different tools you can use to import and clean your drawings in TVPaint:

https://youtu.be/u4CPPXx4LaI

https://youtu.be/_WVuinczXjU

Here is some additional info on setting up a scanner , the scanning process, then importing and processing the drawings (Scan Cleaner, etc.) in TVPaint:

https://drive.google.com/open?id=1ssM86 ... 0V-czlEzpm