Coppercam Licence -

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, subject to the following conditions:

Here’s a balanced review of the based on common user experiences and software licensing practices: coppercam licence

Licensed users can use "rub-out" or hatch filling, which mills away all excess copper on the board, not just the outlines. This is great for preventing shorts and making the board look professional. Permission is hereby granted, free of charge, to