verb (used with object), mi·cro·dot·ted, mi·cro·dot·ting.
Examples from the Web for microdot
Is the term "microdot printing" or lithographing familiar to you?
You personally have no familiarity with microdot reduction of some image?
Is there any work done at Jaggars-Chile-Stovall with the use of microdot?
For example, taking a 24 by 24 printed sheet and microdot reducing it to less than the area of a postage stamp.