The underlined word that is identified as an indefinite pronoun from the sentence "I gave the information to her, but anyone could have copied it for himself." is her. An indefinite pronoun is a pronoun that does not give a definite meaning on the noun that they replaced and may either be plural and singular in form that would correspond to a given verb. In here, the person s referring to a girl which otherwise can be stated with a name rather than with a pronoun.