You don't need to sign every page in the process of reporting the case. According to the precautions in the report materials, you need to sign your name in the lower right corner of the last page and press your handprint (press your right index finger on your signature). This can confirm your confirmation and authenticity of the reported information. Personal signature must be written in person, copied on A4 paper and written with black pen or signature pen. If you can't provide complete report materials as required, please indicate in the last item of the report that "all the above are my investment, and I will bear the consequences if I don't submit complete materials".