Micro printing techniques involve the creation of extremely small text or images that are often used for security purposes. These techniques can produce text that is nearly invisible to the naked eye but can be seen under magnification. Common applications include banknotes, passports, and official documents, where micro printing helps prevent counterfeiting. The process typically utilizes specialized printing methods, such as offset printing or digital printing, to achieve high precision. Micro printing can also incorporate various inks and substrates to enhance durability and visibility. This technology is essential in maintaining the integrity of sensitive materials and ensuring authenticity.