For stealing to happen the following conditions should be fulfilled:
i) An article belonging to another legally and blamelessly.
ii) Knowledge that the article belongs to another.
iii) There must be the intention to steal.
iv) Action must be taken to steal.
v) By the action, the article must be taken.
In copying something the article is not taken but copied. Therefore the conditions for stealing is not fulfilled. But though breaking the law is not encouraged even it does not break the precepts.