Legal subjectivity:

Bill forgery mainly targets signature matters on the bill, and its purpose is to forge the bill debtor. Bill alteration mainly focuses on matters other than signatures and seals, and its purpose is to change the content of the bill's obligations. The two matters recorded on the bill are obviously different. That is to say, they have these differences, so they will also have different legal effects and legal responsibilities. The forgery of a bill is invalid from the beginning, so even if the holder is in good faith, the forger and the forger do not bear the obligation of the bill; if there is a forged signature on the bill, it does not affect the validity of other authentic signatures on the bill. If the signature and seal of the party are before the alteration, the party shall be responsible according to the original recorded content; if the signature and seal are after the alteration, the party shall be responsible according to the altered recorded content; if it is impossible to tell whether the signature was before the alteration or after the alteration. After the creation, it is deemed to have been signed before the alteration. Legal objectivity:

The cancellation of a bill refers to the act of erasing signatures or other recorded matters on the bill. The canceler may be a person with the right to cancel or a person without the right to cancel. Cancellation by a person who has the right to cancel will have the effect of cancellation as stipulated in the Negotiable Instruments Law: intentional cancellation will have the effect of changing the rights and obligations of the instrument; unintentional cancellation will not change the original rights and obligations on the instrument. For example, if ink is accidentally stained on a bill, making part of the text blurry, it cannot change the rights and obligations of the original bill. The act of erasure by a person without the right to erasure is an act of alteration and shall be handled in accordance with the alteration rules. It can be seen from the above that the main difference between bill alteration and cancellation with the right is that the perpetrators are different, the behavior is different, and the legal effects are different. The difference between bill alteration and cancellation without right is mainly the way of behavior. There is no provision for cancellation system in my country's Negotiable Instruments Law. In bill practice, banks do not allow obliterations on bills.