Is the questioner sinful for what she did by erasing the name of the author of the مذكرة (memoir/notes) written by her father, replacing it with another name, and selling it at her father’s request, without her knowledge initially, and her stopping immediately upon learning? And is her father's sending of مذكرة (memoir/notes) in PDF format without the owners' permission and his trading in them considered cooperation in sin? And is she sinful for accepting money from her father to cover her tuition fees, despite her strong suspicion that this money is from the proceeds of those sold مذكرة (memoir/notes)?

It is not permissible to attribute works to anyone other than their authors or to assist in such an act, as it constitutes an infringement on people's rights, forgery, and deception. However, if you were unaware of the impermissibility of this or did not know the true nature of the work, there is no sin upon you. It is also not permissible to trade in copyrighted books without the permission of their owners, because intellectual property rights are protected. Therefore, you are not permitted to assist your father in this matter, and if you do so while knowing it is forbidden, you must repent to Allah. There is nothing upon you regarding the money you took from your father, even if it was a prohibited earning, for the prohibition relates to his responsibility, not to the money itself.