There are so many links which might help you out. Please check this post. They are not PDF files, but you can get few links which makes you understand about the ionic framework, and even you can convert them to PDF if you wish.
There are so many links which might help you out. Please check this post. They are not PDF files, but you can get few links which makes you understand about the ionic framework, and even you can convert them to PDF if you wish.