There are help pages in the form of web pages. There is an online version of the help pages.
The help pages are currently not available as a single document.
However, there are currently two books on CPN modeling and analysis available, which also provide many details about CPN Tools.
You can create your own “manual” by clicking on the
Create book tab at the bottom of every help page. Now, every page you visit gets a
Add this page to you book at the top. Click on the pages you want and add them to your book. When you are done, click
Show, modify book, and follow the guide-lines to download your manual as a PDF. Note that some formatting may be weird and some images lost.