what is the purpose of rubber stamp ?

Rubber stamps are used to create a seal or impression on paper, cloth, or other materials.

Rubber stamps are used for many purposes. They can be used to mark ownership of property, as a signature, or as an indication of approval.

Rubber stamps are also used in the printing industry for marking proofs and other work-in-progress material.

Rubber stamps can be made from many different materials including wood, metal, plastic and rubber.

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Rubber stamps are used to create an impression on paper, typically with ink. The most common type of stamp is the rubber stamp, which can be used to create an impression in almost any kind of ink on almost any surface that is not too delicate or too slick.

Rubber stamps are often used for creating repetitive designs or patterns, such as those found on playing cards and other games. They are also used for making a signature or other mark of authenticity on legal documents, artwork and other items.Rubber stamps can be made from many different materials, but the most common type is made from a soft material like rubber or silicone that will leave an impression in the desired medium.
@https://orangecreations.org/stamps.html