If there is a conflict with the company in the future, the company may fill in the blank contract with information beneficial to the employer. If no evidence can be provided to prove that it was signed under duress or that the other party filled it in the contract, then both parties will perform it according to the labor contract that may be unfavorable to the employees.

Therefore, the following preparations should be made:

1. Confirm the contract with the personnel department of the company as soon as possible to see if it can be reissued or copied, and then understand the actual contract terms;

2. If the clauses in this contract are in conflict with the law, they are invalid, and shall be implemented in accordance with relevant laws. Other clauses that are not in conflict with the law are still valid and shall be implemented in accordance with the labor contract signed by both parties. In other words, the law recognizes the validity of some clauses of a labor contract, and the whole labor contract will not be invalidated because of the invalidity of individual clauses.

3. Grasp the evidence that is really beneficial to you, especially the direct evidence, the most powerful written evidence, or the witness's proof.

If you are not sure, take it as a lesson and don't sign it casually in the future. Signing will bear legal responsibility, and attention should be paid to protecting your rights and interests.