Identity document forgery is when someone creates a fake version of a document that is meant to prove their identity. This can be done for many reasons, but often it is because the person wants to do something illegal or get something they are not entitled to.
For example, if someone wants to go to a bar but they are not old enough, they might make a fake ID that says they are older. Or if someone wants to travel to another country but they don't have a valid passport, they might try to create a fake one.
To create a fake identity document, someone might start by finding a real one to copy. They might then use a computer or a printer to create a new version of the document, making changes to the name, photo, or age to make it seem like it belongs to someone else.
Sometimes, people who make fake IDs use special materials like holograms or special inks to try and make the fake document look more authentic. They might also try to alter an existing ID by changing the information on it with a pen or a marker.
Identity document forgery is illegal and can lead to serious consequences if someone is caught. That's why it's important to always use your own real ID and never try to make a fake one.