It is similar to this question, just this time code which is licensed under Apache 2.0 gets linked into code I have written, which is under the BSD 3-clause. Both are open-source, but I wanted to give the licensed code a unique license to not confuse people as I will  put the app on github. So I would like to convert apache2.0 code-sections to BSD 3-clause.  Up to now I put ahead of the code first my BSD3cl header and then the Apache2.0 header which was already there. Furthermore I mark changed lines inside the Apache2.0 code, which I edited myself (this is what Apache2.0 tells me to do). So altogether I want to remove Apache2.0 and put all the code under BSD3cl. .//BSD-3-clause template (where all the restrictions go etc)//Already existing Apache 2.0 template//my code//origianl apache code//origianl apache code modified ( I did change this and that)//my code//my codeWhat are your thoughts on this, as I dont have experience yet with licensing in general.
Convert Apache 2.0 code to BSD 3-clause
bsd;apache 2.0
You can not change the license on code you did now write (more precisely, not own).If you combine code distributed under different licenses, the result must be distributed under the license that is more restrictive (the one that allows less), as you must comply with both.The BSD licenses are nearly maximal permissive, Apache somewhat less. If you can distribute the result of combining Apache + BSD, it is under Apache only.