I am writing a commercial program. After using ProGuard code obfuscation, will I need to state in the license for my program or in the program itself that I used ProGuard code obfuscation and link to the website and the ProGuard GNU GPL 2.0 license?
Thank you very much in advance.
ProGuard itself is distributed under the GPL, but this doesn’t affect the programs that you process. Your code remains yours, and its license can remain the same.