TaskPaper will remember documents that are open when you quit, and restore them when you next open TaskPaper.
This feature requires that you quit TaskPaper with open documents. If you close the documents first, and then quit TaskPaper it won’t work.
If this feature doesn’t seem to be working make sure that System Preferences > General > Close windows when quitting an app is not checked.
If you prefer some apps to remember their open documents, and other apps to forget, you can set this setting on individual apps as described in this article:
Note Some of the tips in the comments below refer to
com.hogbaysoftware.TaskPaper3. That is appropriate if you are using the Mac App Store version of TaskPaper. If you are using the direct download version of TaskPaper you will need to use