what is id card

An ID card, also known as an identity card, is a document that can be used to prove a person's identity. It is often issued in a small, standard credit card size form and may contain identifying information such as the person's full name, address, age, and a photograph. Some countries issue formal identity documents, such as national identification cards, which may be compulsory or non-compulsory. In the absence of a formal identity document, a driver's license may be accepted in many countries for identity verification. ID cards are used for various purposes, including accessing government services, travel, and proving one's identity or age. In some countries, an ID card is a citizen's most important state document