You can use the entries in the Quite Imposing menu to start all of the functions in Quite Imposing. Alternatively, you can just select Imposition Control Panel , which starts a control panel giving buttons ready to run each function.
It is worth experimenting with each of the functions to see how they work. You may find it useful to combine functions in ways you didn't expect.
Take care not to damage your original files. Some, but not all, functions will create new PDF files, making a copy of the old. Check the table on the next page to see which functions do this. Always remember that there is a Create Sample Document function which is a good starting point for your experiments. For safety, Quite Imposing never saves or overwrites a file automatically - you must choose to do this.
Which functions modify existing documents?