When handling ID card images, it is important to ensure security and clear purpose. The following are some detailed annotation steps:

First of all, the annotation information should be as detailed as possible. It is recommended to use a blue ballpoint pen, but be sure to keep the ID number and name clearly visible to avoid blocking key information. Doing so prevents easy tampering by others.

Secondly, in order to increase the security against counterfeiting, the strokes should intersect or contact the text on the ID card, so that even if someone tries to remove the mark, traces will be left. Remember to draw a clear horizontal line after each line of text to eliminate the possibility of others adding additional text.

Next, signature is an important part of annotation. Within the scope of the ID card, write a statement that makes it clear that the ID is limited to a specific purpose, such as: "This ID is only for xxx, any other use is illegal and invalid" and attach your signature. This not only protects your own rights and interests, but also clearly informs others of the restrictions on the use of this certificate.

Finally, it is important to understand that unmarked copies of ID cards may pose serious risks. Without permission, others may use it to conduct illegal activities, such as applying for a credit card and maliciously overdrafting, registering a company to engage in illegal activities, or even becoming a tool for fraudsters to impersonate their identities. Therefore, properly marking copies of ID cards is a necessary measure to protect the security of personal information.