Drawboard PDF does not auto save your documents. Rather, it keeps a temporary 'scratch' file of your unsaved annotations in a file, waiting for you to save. This should not be relied upon as a manner of saving your files.
Drawboard PDF currently stores your temporary file data in the following directories:
- C:\Users\YourUserName\AppData\Local\Packages\Drawboard.DrawboardPDF_gqbn7fs4pywxm\LocalState\v2\Scratch
- C:\Users\YourUserName\AppData\Local\Packages\Drawboard.DrawboardPDF_gqbn7fs4pywxm\LocalState\v2\Temp
^clicking your address bar in your file explorer will usually reveal your username.
WARNING: Moving files from these directories may cause saving and file opening issues in the app.