How can you make a Microdot?

To create a microdot, you'll need to start with a small piece of text or image that you want to encode. Use a high-resolution scanner to capture the image and then reduce its size significantly, often to a fraction of a millimeter, while maintaining clarity. You can then print this tiny image onto a suitable surface, such as paper or film, using a high-quality printer. Finally, ensure that your microdot is discreetly embedded within a larger document or object to conceal it effectively.